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27.04.202511:09

Grade 10 Biology questions.

1. Which of the following is the primary pigment responsible for photosynthesis in plants?
   a) Chlorophyll
   b) Carotenoids
   c) Anthocyanins
   d) Xanthophylls

2. What is the function of plant stomata?
   a) Absorption of water and nutrients
   b) Gas exchange
   c) Photosynthesis
   d) Reproduction

3. Which of the following plant groups does not produce seeds?
   a) Angiosperms
   b) Gymnosperms
   c) Ferns
   d) Bryophytes

4. What is the reproductive structure of angiosperms?
   a) Cone
   b) Flower
   c) Sporophyte
   d) Sorus

5. What is the primary function of plant leaves?
   a) Gas exchange
   b) Photosynthesis
   c) Water absorption
   d) Reproduction

6. What is the purpose of plant cuticle?
   a) Protection from herbivores
   b) Gas exchange
   c) Water retention
   d) Nutrient absorption

7. Which of the following is not a characteristic of monocot plants?
    a) Parallel leaf veins
    b) Netted leaf venation
    c) Floral parts in multiples of three
    d) Fibrous root system

8. What is the main function of xylem tissue in plants?
    a) Transport of water and minerals
    b) Photosynthesis
    c) Support and structure
    d) Nutrient absorption

9. Which plant group includes mosses and liverworts?
    a) Bryophytes
    b) Gymnosperms
    c) Angiosperms
    d) Pteridophytes

10. What is the name of the male reproductive organ in a flower?
    a) Pistil
    b) Stamen
    c) Petal
    d) Sepal

11. Which of the following is an example of a gymnosperm?
    a) Oak tree
    b) Pine tree
    c) Apple tree
    d) Maple tree

12. Which plant group includes flowering plants?
    a) Bryophytes
    b) Gymnosperms
    c) Angiosperms
    d) Pteridophytes

13. What is the primary function of plant stems?
    a) Photosynthesis
    b) Water absorption
    c) Support and transport
    d) Nutrient storage

14. Which of the following is not a type of plant tissue?
    a) Epidermal tissue
    b) Ground tissue
    c) Vascular tissue
    d) Sensory tissue

15. Which plant group includes conifers and cycads?
    a) Bryophytes
    b) Gymnosperms
    c) Angiosperms
    d) Pteridophytes

16. What is the process by which water moves through a plant from roots to leaves?
    a) Transpiration
    b) Photosynthesis
    c) Osmosis
    d) Capillary action
17. Which of the following is an example of a dicot plant?
    a) Wheat
    b) Corn
    c) Tomato
    d) Sugarcane

18. What is the term for the transfer of pollen from the male reproductive organ to the female reproductive organ of a flower?
    a) Pollination
    b) Fertilization
    c) Germination
    d) Embryogenesis

19. Which of the following is not a function of plant hormones?
    a) Regulating growth and development
    b) Responding to environmental stimuli
    c) Transporting nutrients
    d) Coordinating responses to stress

20. What is the function of the root cap in plants?
    a) Protection
    b) Nutrient absorption
    c) Gas exchange
    d) Reproduction

📌 Answers

1. a) Chlorophyll
2. b) Gas exchange
3. c) Ferns
4. b) Flower
5. b) Photosynthesis
6. c) Water retention
7. b) Netted leaf venation
8. a) Transport of water and minerals
9. a) Bryophytes
10. b) Stamen
11. b) Pine tree
12. c) Angiosperms
13. c) Support and transport
14. d) Sensory tissue
15. b) Gymnosperms
16. a) Transpiration
17. c) Tomato
18. a) Pollination
19. c) Transporting nutrients
20. a) Protection

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25.04.202516:53

Grade 9 Biology (25 Questions)

1. What is the basic unit of life?
A) Atom
B) Molecule
C) Cell
D) Organ
Answer: C

2. Which organelle is known as the powerhouse of the cell?
A) Nucleus
B) Ribosome
C) Mitochondria
D) Endoplasmic reticulum
Answer: C

3. Which of the following is not a characteristic of living things?
A) Reproduction
B) Growth
C) Movement
D) Rusting
Answer: D

4. What pigment is responsible for photosynthesis?
A) Hemoglobin
B) Chlorophyll
C) Melanin
D) Carotene
Answer: B

5. In which kingdom do we classify mushrooms?
A) Plantae
B) Fungi
C) Protista
D) Animalia
Answer: B

6. Which gas is used during photosynthesis?
A) Oxygen
B) Nitrogen
C) Carbon dioxide
D) Hydrogen
Answer: C

7. The process of converting glucose to energy in cells is called:
A) Respiration
B) Photosynthesis
C) Digestion
D) Transpiration
Answer: A

8. Which cell structure controls what enters and leaves the cell?
A) Nucleus
B) Cell wall
C) Cytoplasm
D) Cell membrane
Answer: D

9. Which of the following is a vertebrate?
A) Earthworm
B) Spider
C) Frog
D) Snail
Answer: C

10. Which organ system transports nutrients in the body?
A) Digestive
B) Respiratory
C) Circulatory
D) Nervous
Answer: C

11. How many chromosomes do human body cells have?
A) 23
B) 46
C) 22
D) 44
Answer: B

12. Which part of the plant absorbs water and minerals?
A) Leaf
B) Stem
C) Root
D) Flower
Answer: C

13. Which is not a function of the skeleton?
A) Protection
B) Movement
C) Digestion
D) Support
Answer: C

14. Which nutrient is mainly used for energy?
A) Protein
B) Carbohydrate
C) Vitamin
D) Mineral
Answer: B

15. Which part of the brain controls balance?
A) Cerebrum
B) Cerebellum
C) Medulla
D) Hypothalamus
Answer: B

16. What is the function of red blood cells?
A) Fight disease
B) Clot blood
C) Carry oxygen
D) Digest fat
Answer: C

17. The smallest bones in the human body are in the:
A) Ear
B) Toe
C) Nose
D) Finger
Answer: A

18. Which kingdom includes bacteria?
A) Fungi
B) Protista
C) Monera
D) Plantae
Answer: C

19. Which organ filters blood in the human body?
A) Liver
B) Kidney
C) Heart
D) Lung
Answer: B

20. Which of the following reproduces by spores?
A) Human
B) Mushroom
C) Cow
D) Fish
Answer: B

21. Which blood cells help fight infections?
A) Red blood cells
B) Platelets
C) White blood cells
D) Plasma
Answer: C

22. The green pigment in plants is:
A) Melanin
B) Hemoglobin
C) Chlorophyll
D) Keratin
Answer: C

23. Which sense organ detects light?
A) Ear
B) Eye
C) Skin
D) Nose
Answer: B

24. How many lungs do humans have?
A) 1
B) 2
C) 3
D) 4
Answer: B

25. Which organ system helps remove waste from the body?
A) Digestive
B) Nervous
C) Excretory
D) Respiratory
Answer: c

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25.04.202515:13

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25.04.202514:11

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25.04.202509:02

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25.04.202506:20

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3. English Exam Based
4. Aptitude (SAT)
5. Biology Grade 12 (Unit 3, 4 and 5)
6. Chemistry Grade 12 Unit 1&2

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25.04.202502:31

ODUU GAMMACHIISAA

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23.04.202516:04

Maths grade 10 unit 5

1. What is the value of sin(0)?
a) 0
b) 1
c) -1
d) undefined

Answer: a) 0

2. Which of the following is an identity?
a) sin(a+b) = sin(a) + sin(b)
b) cos(a+b) = cos(a) + cos(b)
c) tan(a+b) = tan(a) + tan(b)
d) sin(2a) = 2sin(a)

Answer: d) sin(2a) = 2sin(a)

3. What is the period of the function f(x) = 2sin(x)?
a) π
b) 2π
c) 4π
d) 1

Answer: b) 2π

4. If sin(x) = 3/5, what is the value of cos(x)?
a) 4/5
b) 3/4
c) 4/3
d) 5/3

Answer: a) 4/5

5. What is the amplitude of the function f(x) = 3cos(2x)?
a) 1
b) 2
c) 3
d) 6

Answer: c) 3

6. Which of the following is a Pythagorean identity?
a) sin^2(a) + cos^2(a) = 1
b) tan^2(a) + 1 = sec^2(a)
c) cot^2(a) + 1 = csc^2(a)
d) all of the above

Answer: d) all of the above

7. What is the value of tan(π/4)?
a) 0
b) 1
c) -1
d) undefined

Answer: b) 1

8. If f(x) = sin(x) and g(x) = cos(x), what is the value of f(π/2) + g(π/2)?
a) 0
b) 1
c) 2
d) -1

Answer: c) 2

9. What is the phase shift of the function f(x) = sin(x + π/2)?
a) π/2
b) -π/2
c) π
d) -π

Answer: b) -π/2

10. Which of the following is a sum identity?
a) sin(a+b) = sin(a)cos(b) + cos(a)sin(b)
b) cos(a+b) = cos(a)cos(b) - sin(a)sin(b)
c) tan(a+b) = (tan(a) + tan(b))/(1 - tan(a)tan(b))
d) all of the above

Answer: d) all of the above

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23.04.202514:31

#ads

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🕐 3:00 - 10:00 (LT)
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22.04.202517:09

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22.04.202516:12

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22.04.202514:04

Pythagorean theorem

1. The Pythagorean Theorem applies to what type of triangle?
a) Acute triangle
b) Obtuse triangle
c) Right triangle
d) Equilateral triangle

2. In a right triangle, the side opposite the right angle is called the:
a) Base
b) Altitude
c) Hypotenuse
d) Leg

3. The Pythagorean Theorem states:
a) a + b = c
b) a² + b² = c
c) a² + b² = c²
d) a = b = c

4. If a = 3 and b = 4 in a right triangle, what is the length of c (the hypotenuse)?
a) 5
b) 7
c) 25
d) √7

5. If c = 13 and a = 5 in a right triangle, what is the length of b?
a) 8
b) 12
c) 18
d) √194

6. Which of the following sets of side lengths could form a right triangle?
a) 2, 3, 4
b) 3, 4, 5
c) 4, 5, 6
d) 5, 6, 7

7. A ladder is leaning against a wall. The ladder is 10 feet long, and the base of the ladder is 6 feet from the wall. How high up the wall does the ladder reach?
a) 4 feet
b) 8 feet
c) 16 feet
d) 64 feet

8. What is the relationship of sin²(x)+cos²(x)= to with Pythagoras theorem?
a) Pythagoras Theorem has no relevance to the trig equation.
b) They are completely equivalent
c) It is just a coincidence as 1, sinx, cosx does not represent a triangle
d) It follows the same equation as a²+b²=c²

9. A square has a diagonal of length 8√2. What is the side length of the square?
a) 4
b) 8
c) 16
d) 64

10. Which equation cannot be derived from using pythagorean thereom.
a) a = √(c² - b²)
b) b = √(c² - a²)
c) c = √(a² + b²)
d) c = a+b

Answer Key:

1. c) Right triangle
2. c) Hypotenuse
3. c) a² + b² = c²
4. a) 5
5. b) 12
6. b) 3, 4, 5
7. b) 8 feet
8. d) It follows the same equation as a^2+b^2=c^2.
9. b) 8
10. d) c = a+b

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01.04.202520:23

📚 Questions about alkanes and alkynes:

1. Which of the following is the general formula for alkanes?
    * A. CnH2n
    * B. CnH2n+2
    * C. CnH2n-2
    * D. CnH2n-4

2. Which of the following is the general formula for alkenes?
    * A. CnH2n
    * B. CnH2n+2
    * C. CnH2n-2
    * D. CnH2n-4

3. Which of the following is the general formula for alkynes?
    * A. CnH2n
    * B. CnH2n+2
    * C. CnH2n-2
    * D. CnH2n-4

4. Which of the following is an alkane?
    * A. CH4
    * B. C2H4
    * C. C2H2
    * D. C3H6

5. Which of the following is an alkene?
    * A. CH4
    * B. C2H4
    * C. C2H2
    * D. C3H6

6. Which of the following is an alkyne?
    * A. CH4
    * B. C2H4
    * C. C2H2
    * D. C3H6

7. Which of the following alkanes has the highest boiling point?
    * A. methane
    * B. ethane
    * C. propane
    * D. butane

8. Which of the following alkenes has the highest boiling point?
    * A. ethene
    * B. propene
    * C. butene
    * D. pentene

9. Which of the following alkynes has the highest boiling point?
    * A. ethyne
    * B. propyne
    * C. butyne
    * D. pentyne

10. Which of the following alkanes is the most reactive?
    * A. methane
    * B. ethane
    * C. propane
    * D. butane

11. Which of the following alkenes is the most reactive?
    * A. ethene
    * B. propene
    * C. butene
    * D. pentene

12. Which of the following alkynes is the most reactive?
    * A. ethyne
    * B. propyne
    * C. butyne
    * D. pentyne

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01.04.202522:12

📚BIOLOGY COMMON QUESTIONS

1. The main function of the heart is to:
(A) Pump blood throughout the body
(B) Filter waste products from the blood
(C) Regulate body temperature
(D) Produce red blood cells

2. Which of the following blood vessels carries blood away from the heart?
(A) Arteries
(B) Veins
(C) Capillaries
(D) Lymph vessels

3. The exchange of oxygen and carbon dioxide between blood and body cells occurs in the:
(A) Arteries
(B) Veins
(C) Capillaries
(D) Lymphatics

4. Which of the following is NOT a type of blood cell?
(A) Red blood cell
(B) White blood cell
(C) Thrombocyte
(D) Neutrophil

5. The function of platelets is to:
(A) Carry oxygen
(B) Fight infection
(C) Clot blood
(D) Regulate blood pressure

6. The main function of the kidneys is to:
(A) Filter waste products from the blood
(B) Regulate blood pressure
(C) Produce hormones
(D) Digest food

7. The filtering unit of the kidney is the:
(A) Nephron
(B) Glomerulus
(C) Bowman's capsule
(D) Renal pelvis

8. Which of the following substances is NOT filtered by the kidneys?
(A) Glucose
(B) Urea
(C) Creatinine
(D) Sodium

9. The kidneys help regulate blood pressure by:
(A) Releasing hormones
(B) Adjusting salt and water balance
(C) Controlling blood flow
(D) Both B and C

10. Which of the following is a common kidney disease?
(A) Renal failure
(B) Diabetes
(C) Hypertension
(D) All of the above

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25.04.202516:53

03.04.202501:57

Most common Biology Questions for Entrance Exam from : Nervous System Parts and Functions

1. The basic functional unit of the nervous system is the:
a) Neuron
b) Neuroglia
c) Axon
d) Dendrite

2. Which part of a neuron typically receives signals from other neurons?
a) Axon
b) Myelin sheath
c) Dendrite
d) Synapse

3. The long, slender projection of a neuron that conducts electrical impulses away from the cell body is the:
a) Dendrite
b) Axon
c) Synapse
d) Neuroglia

4. What is the function of the myelin sheath?
a) To transmit signals to the next neuron
b) To receive signals from other neurons
c) To speed up the conduction of nerve impulses
d) To nourish the neuron

5. The gap between two neurons where neurotransmitters are released is called the:
a) Axon
b) Dendrite
c) Synapse
d) Myelin sheath

6. Which of the following is a chemical messenger that transmits signals between neurons?
a) Myelin
b) Neurotransmitter
c) Action potential
d) Membrane potential

7. The central nervous system (CNS) consists of:
a) The brain and spinal cord
b) The cranial and spinal nerves
c) The sensory and motor neurons
d) The sympathetic and parasympathetic divisions

8. Which part of the brain is responsible for higher-level functions, such as thinking, memory, and language?
a) Cerebellum
b) Brainstem
c) Cerebrum
d) Thalamus

9. The part of the brain that coordinates movement and balance is the:
a) Cerebrum
b) Cerebellum
c) Medulla oblongata
d) Hypothalamus

10. Which part of the brainstem is involved in regulating heart rate and breathing?
   a) Cerebellum
   b) Pons
   c) Medulla oblongata
   d) Thalamus

11. The peripheral nervous system (PNS) includes:
a) The brain and spinal cord
b) All the nerves outside the brain and spinal cord
c) Only the sensory nerves
d) Only the motor nerves

12. Which division of the autonomic nervous system is responsible for the "fight-or-flight" response?
a) Parasympathetic
b) Somatic
c) Sympathetic
d) Enteric

13. Which division of the autonomic nervous system is responsible for "rest and digest" functions?
a) Sympathetic
b) Sensory
c) Motor
d) Parasympathetic

14. Sensory neurons transmit information from:
a) The brain to the muscles
b) The spinal cord to the brain
c) Receptors to the central nervous system
d) The central nervous system to the peripheral nervous system

15. Motor neurons transmit information from:
   a) Receptors to the central nervous system
   b) The brain to the sensory receptors
   c) The central nervous system to the muscles and glands
   d) The peripheral nervous system to the central nervous system

Answers:

1. a
2. c
3. b
4. c
5. c
6. b
7. a
8. c
9. b
10. c
11. b
12. c
13. d
14. c
15. c

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27.03.202502:53

👉Biology questions

1. Which organelle is responsible for the production of energy in a cell?
   a) Nucleus
   b) Golgi apparatus
   c) Mitochondria
   d) Endoplasmic reticulum

2. What is the function of the cell membrane?
   a) Protection and support
   b) Control of substances entering and leaving the cell
   c) Protein synthesis
   d) Storage of genetic material

3. Which of the following is NOT a type of cell division?
   a) Mitosis
   b) Meiosis
   c) Cytokinesis
   d) Osmosis

4. What is the role of ribosomes in a cell?
   a) Protein synthesis
   b) Energy production
   c) Storage of genetic material
   d) Cell division

5. Which of the following is NOT a component of the cytoskeleton?
   a) Microtubules
   b) Microfilaments
   c) Intermediate filaments
   d) Cell wall

6. What is the function of the Golgi apparatus?
   a) Protein synthesis
   b) Energy production
   c) Packaging and modification of proteins
   d) Storage of genetic material

7. Which organelle is responsible for the synthesis of lipids?
   a) Nucleus
   b) Golgi apparatus
   c) Smooth endoplasmic reticulum
   d) Rough endoplasmic reticulum

8. What is the function of vacuoles in plant cells?
   a) Storage of water and nutrients
   b) Protein synthesis
   c) Energy production
   d) Cell division

9. Which of the following is NOT a type of cellular transport?
   a) Diffusion
   b) Osmosis
   c) Active transport
   d) Photosynthesis

10. Which organelle is responsible for detoxification of harmful substances in liver cells?
    a) Nucleus
    b) Golgi apparatus
    c) Smooth endoplasmic reticulum
    d) Rough endoplasmic reticulum

11. What is the function of lysosomes in a cell?
    a) Protein synthesis
    b) Energy production
    c) Breakdown of cellular waste and debris
    d) Storage of genetic material

12. Which of the following is NOT a characteristic of prokaryotic cells?
    a) Presence of a nucleus
    b) Lack of membrane-bound organelles
    c) Presence of DNA
    d) Presence of a cell membrane

13. What is the function of the centrioles in animal cells?
    a) Protein synthesis
    b) Energy production
    c) Cell division
    d) Storage of genetic material

14. Which organelle is responsible for photosynthesis in plant cells?
    a) Nucleus
    b) Golgi apparatus
    c) Chloroplasts
    d) Mitochondria

15. What is the function of the nuclear envelope?
    a) Protection of the nucleus
    b) Protein synthesis
    c) Energy production
    d) Storage of genetic material

16. Which of the following is NOT a type of cell junction?
    a) Desmosomes
    b) Tight junctions
    c) Gap junctions
    d) Cell wall

17. What is the function of the rough endoplasmic reticulum?
    a) Protein synthesis
    b) Energy production
    c) Packaging and modification of proteins
    d) Storage of genetic material

18. What is the function of the nucleolus in a cell?
    a) Protein synthesis
    b) Energy production
    c) Storage of genetic material
    d) Cell division

19. Which of the following is NOT a type of passive transport?
    a) Diffusion
    b) Osmosis
    c) Active transport
    d) Facilitated diffusion

20. What is the function of the cell wall in plant cells?
    a) Protection and support
    b) Control of substances entering and leaving the cell
    c) Protein synthesis
    d) Storage of genetic material

Give your answers! 🌫

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转发自:

Oromia Times

02.04.202519:30

#MOE

Barattoonni Yuunivarsiitii osoo hin eebbifamin waggaa tokkoof barsiisuuf dirqamuuf jiru.

Ministeerri Barnootaa barattoonni yunivarsiitii eebbifamuu isaanii dura waggaa tokkoof hawaasa barsiisuu ykn tajaajiluu qabu sirna jedhu hojiirra oolchuuf karoora qabaachuu beeksise.

https://t.me/Oromiastudent_s
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27.03.202515:11

📌 Physics Motion in a straight line Q&A

1. What is the definition of rectilinear motion?
A) Motion in a circular path
B) Motion along a straight line
C) Motion with varying velocity
D) Motion along a curved path

Answer: B) Motion along a straight line

2. An object is in motion if:
A) It remains at rest
B) It changes position relative to a reference point
C) It moves in a circular path
D) Its speed remains constant

Answer: B) It changes position relative to a reference point

3. Which of the following is a scalar quantity?
A) Displacement
B) Velocity
C) Distance
D) Acceleration

Answer: C) Distance

4. Displacement refers to:
A) The total path length travelled by a body
B) The change in position of a body in a certain direction
C) The speed of an object
D) The average velocity of an object

Answer: B) The change in position of a body in a certain direction

5. How can the speed of an object be calculated?
A) Distance divided by time
B) Displacement divided by time
C) Velocity multiplied by time
D) Acceleration multiplied by time

Answer: A) Distance divided by time

6. Which of the following is true about velocity?
A) Velocity is always the same as speed
B) Velocity is a scalar quantity
C) Velocity includes both speed and direction
D) Velocity cannot be zero

Answer: C) Velocity includes both speed and direction

7. The average velocity is:
A) Displacement divided by time
B) Distance divided by time
C) Speed at a specific instant
D) Zero for uniform motion

Answer: A) Displacement divided by time

8. When is the average velocity the same as instantaneous velocity?
A) When the object is accelerating
B) When the object is in uniform motion
C) When the object changes direction
D) When the object is at rest

Answer: B) When the object is in uniform motion

9. Which of the following is true about acceleration?
A) Acceleration occurs only when an object speeds up
B) Acceleration can also occur when an object slows down
C) Acceleration does not depend on the direction of motion
D) Acceleration is not related to a change in velocity

Answer: B) Acceleration can also occur when an object slows down

10. Uniform motion refers to:
A) Motion with varying speed
B) Motion along a curved path
C) Motion along a straight line with constant velocity
D) Motion where the object is at rest

Answer: C) Motion along a straight line with constant velocity

11. The slope of a position-versus-time graph represents:
A) Acceleration
B) Instantaneous velocity
C) Distance
D) Average velocity

Answer: B) Instantaneous velocity

12. What is true about instantaneous velocity and average velocity if the velocity is constant?
A) Instantaneous velocity is always greater than average velocity
B) Instantaneous velocity is less than average velocity
C) Instantaneous velocity equals average velocity
D) Instantaneous velocity cannot be determined

Answer: C) Instantaneous velocity equals average velocity

13. Which of the following quantities is a vector?
A) Distance
B) Speed
C) Displacement
D) Time

Answer: C) Displacement

14. If an object moves with constant speed, what can be said about its velocity?
A) It is constantly changing
B) It has zero acceleration
C) Its displacement is zero
D) It is non-uniform

Answer: B) It has zero acceleration

15. What is the change in the position of a body called?
A) Distance
B) Displacement
C) Speed
D) Acceleration

Answer: B) Displacement

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30.03.202502:49

🌿gerunds and infinitives in English:

1, She enjoys ___ to music in her free time.
A) listen
B) listening
C) to listen
D) listened

2, I forgot ___ the door before leaving the house.
A) lock
B) locking
C) to lock
D) locked

3, They decided ___ the meeting until next week.
A) postpone
B) postponing
C) to postpone
D) postponed

4, He admitted ___ the mistake during the project.
A) make
B) making
C) to make
D) made

5, We hope ___ the exam with good grades.
A) pass
B) passing
C) to pass
D) passed

6, Smoking ___ harmful to your health.
A) is
B) to be
C) being
D) be

7, She can’t stand ___ in long lines at the store.
A) wait
B) waiting
C) to wait
D) waited

8, The teacher asked us ___ the homework by tomorrow.
A) finish
B) finishing
C) to finish
D) finished

9, I don’t mind ___ late if it helps the team.
A) work
B) working
C) to work
D) worked

10, He promised ___ me with my assignment.
A) help
B) helping
C) to help
D) helped
Answers
1 B

2 C

3 C

4 B

5 C

6 A

7 B

8 C

9 B

10 C

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29.03.202502:35

Kinematics Questions

1. 🚗 A car accelerates uniformly from rest to a speed of 20 m/s in 10 seconds. What is the car’s acceleration?
a) 1 m/s²
b) 2 m/s²
c) 3 m/s²
d) 4 m/s²

2. 🏀 A ball is thrown vertically upward with a speed of 15 m/s. How long does it take to reach its maximum height? (g = 9.8 m/s²)
a) 1.53 s
b) 2.50 s
c) 3.06 s
d) 4.58 s

3. 🕒 A particle moves with a constant velocity of 5 m/s for 10 seconds. What is the displacement during this time?
a) 25 m
b) 50 m
c) 75 m
d) 100 m

4. 🌍 An object is in free fall. After 2 seconds, what is its velocity? (g = 9.8 m/s²)
a) 9.8 m/s
b) 19.6 m/s
c) 29.4 m/s
d) 39.2 m/s

5. 📏 A train travels 120 m in 10 seconds at a constant speed. What is the speed of the train?
a) 10 m/s
b) 12 m/s
c) 15 m/s
d) 18 m/s

6. 🎢 What does the area under a velocity-time graph represent?
a) Speed
b) Distance traveled
c) Acceleration
d) Change in velocity

7. ✈️ A plane accelerates from rest at 5 m/s² for 8 seconds. What is its final velocity?
a) 30 m/s
b) 40 m/s
c) 50 m/s
d) 60 m/s

8. 🛤️ A car traveling at 20 m/s comes to rest in 5 seconds. What is its acceleration?
a) -2 m/s²
b) -4 m/s²
c) -5 m/s²
d) -8 m/s²

9. 🧭 Which of the following is a vector quantity?
a) Distance
b) Speed
c) Displacement
d) Time

10. 📐 When an object is thrown vertically upward, which of the following is true about its velocity at the maximum height?
a) It is zero, and the acceleration is also zero.
b) It is zero, but the acceleration is equal to downward.
c) The velocity is non-zero, and the acceleration is zero.
d) Both velocity and acceleration are non-zero but opposite in direction.

Dynamics Questions

11. 🔨 A 5 kg object is acted upon by a net force of 20 N. What is its acceleration?
a) 2 m/s²
b) 4 m/s²
c) 6 m/s²
d) 8 m/s²

12. ⚡ A car of mass 1,000 kg accelerates at 3 m/s². What is the net force acting on the car?
a) 1,000 N
b) 2,000 N
c) 3,000 N
d) 4,000 N

13. 🎯 A 10 kg object is pushed with a force of 50 N against a frictional force of 20 N. What is the net force acting on the object?
a) 10 N
b) 20 N
c) 30 N
d) 50 N

14. 📐 An object at rest is acted upon by a 15 N force. If its mass is 3 kg, what is its acceleration?
a) 3 m/s²
b) 4 m/s²
c) 5 m/s²
d) 6 m/s²

15. 🚀 A rocket of mass 500 kg exerts a thrust force of 10,000 N upward. If gravity exerts 5,000 N downward, what is the rocket’s acceleration?
a) 5 m/s²
b) 10 m/s²
c) 15 m/s²
d) 20 m/s²

16. 🔄 What is Newton’s third law of motion?
a) An object at rest will remain at rest unless acted upon by an external force.
b) The acceleration of an object is directly proportional to the net force and inversely proportional to its mass.
c) For every action, there is an equal and opposite reaction.
d) The force required to move an object is constant.

17. 🛡️ What does the force of friction depend on?
a) The speed of the object
b) The surface area in contact
c) The nature of the surfaces in contact and the normal force
d) The temperature of the surroundings

18. 📦 What is inertia?
a) The ability of an object to change its shape
b) The resistance of an object to any change in its state of motion
c) The force that acts on an object at rest
d) The effect of gravity on an object

19. 🪂 In Newton’s second law of motion, what does the variable represent?
a) Force
b) Speed
c) Mass
d) Distance

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16.04.202504:33

Chemistry most common part of EUU

1. Which of the following is NOT a periodic property?
a) Atomic radius
b) Ionization energy
c) Electronegativity
d) Mass number

2. As you move from left to right across a period in the periodic table, atomic radius generally:
a) Increases
b) Decreases
c) Remains constant
d) Varies unpredictably

3. Which of the following elements has the largest atomic radius?
a) Lithium (Li)
b) Sodium (Na)
c) Potassium (K)
d) Rubidium (Rb)

4. Ionization energy is the energy required to:
a) Add an electron to a neutral atom
b) Remove an electron from a neutral atom
c) Form a chemical bond
d) Break a chemical bond

5. As you move down a group in the periodic table, ionization energy generally:
a) Increases
b) Decreases
c) Remains constant
d) Varies unpredictably

6. Which of the following elements has the highest ionization energy?
a) Helium (He)
b) Neon (Ne)
c) Argon (Ar)
d) Krypton (Kr)

7. Electronegativity is a measure of an atom's ability to:
a) Attract electrons in a chemical bond
b) Lose electrons in a chemical bond
c) Form a positive ion
d) Form a negative ion

8. As you move from left to right across a period in the periodic table, electronegativity generally:
a) Increases
b) Decreases
c) Remains constant
d) Varies unpredictably

9. Which of the following elements has the highest electronegativity?
a) Fluorine (F)
b) Chlorine (Cl)
c) Bromine (Br)
d) Iodine (I)

10. Which of the following is a characteristic of metals?
a) High ionization energy
b) High electronegativity
c) Good conductors of heat and electricity
d) Brittle and non-malleable

11. Which of the following is a characteristic of nonmetals?
a) Shiny and lustrous
b) Malleable and ductile
c) Poor conductors of heat and electricity
d) Tend to form cations

12. Which of the following is a characteristic of metalloids?
a) Have properties of both metals and nonmetals
b) Always exist as solids at room temperature
c) Are highly reactive
d) Are found only in trace amounts

13. Which of the following is the most reactive group of elements?
a) Alkali metals
b) Alkaline earth metals
c) Halogens
d) Noble gases

14. Which of the following is the least reactive group of elements?
a) Alkali metals
b) Alkaline earth metals
c) Halogens
d) Noble gases

15. Which of the following is a property of alkali metals?
a) They are soft, silvery-white metals
b) They are highly reactive with water
c) They form +1 ions
d) All of the above

16. Which of the following is a property of halogens?
a) They are highly reactive nonmetals
b) They exist as diatomic molecules
c) They form -1 ions
d) All of the above

17. Which of the following is a property of noble gases?
a) They are colorless, odorless, and tasteless gases
b) They are very unreactive
c) They have a full outer shell of electrons
d) All of the above

18. Which of the following is the correct order of increasing atomic radius?
a) Li < Na < K < Rb
b) Rb < K < Na < Li
c) K < Na < Li < Rb
d) Na < Li < Rb < K

19. Which of the following is the correct order of increasing ionization energy?
a) Li < Na < K < Rb
b) Rb < K < Na < Li
c) K < Na < Li < Rb
d) Na < Li < Rb < K

20. Which of the following is the correct order of increasing electronegativity?
a) F < Cl < Br < I
b) I < Br < Cl < F
c) Cl < F < Br < I
d) Br < I < Cl < F

Answers:

1. d
2. b
3. d
4. b
5. b
6. a
7. a
8. a
9. a
10. c
11. c
12. a
13. a
14. d
15. d
16. d
17. d
18. a
19. b
20. b
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23.04.202516:04

29.03.202516:34

📌 Most common Chemistry Questions for Entrance Exam from Chemical Bonding

1. Which type of chemical bond involves the sharing of electrons between atoms?
a) Ionic bond
b) Covalent bond
c) Metallic bond
d) Hydrogen bond

2. What type of bond is formed between a metal and a nonmetal?
a) Covalent bond
b) Metallic bond
c) Ionic bond
d) Hydrogen bond

3. Which of the following best describes an ionic bond?
a) Sharing of electrons
b) Attraction between positive and negative ions
c) Delocalized electrons in a lattice
d) Weak intermolecular force

4. In a covalent bond, how many electrons are shared between two atoms in a single bond?
a) 1
b) 2
c) 3
d) 4

5. Which type of bond is primarily responsible for the high electrical conductivity of metals?
a) Ionic bond
b) Covalent bond
c) Metallic bond
d) Hydrogen bond

6. What is the term for the force of attraction between molecules?
a) Intramolecular force
b) Intermolecular force
c) Ionic attraction
d) Covalent bond

7. Which of the following is the strongest type of intermolecular force?
a) London dispersion forces
b) Dipole-dipole interactions
c) Hydrogen bonding
d) Metallic bonding

8. What type of bond is found within a water molecule (H₂O)?
a) Ionic bond
b) Covalent bond
c) Metallic bond
d) Hydrogen bond

9. Which of the following molecules contains a polar covalent bond?
a) O₂
b) CH₄
c) NaCl
d) HCl

10. What property of an atom determines its ability to attract electrons in a chemical bond?
a) Atomic mass
b) Electronegativity
c) Atomic radius
d) Ionization energy

11. Which of the following compounds is most likely to exhibit ionic bonding?
a) CO₂
b) H₂O
c) NaCl
d) CH₄

12. Which of the following is an example of a molecule with a double bond?
a) H₂
b) N₂
c) O₂
d) CH₄

13. Which statement best describes the behavior of electrons in a metallic bond?
a) Electrons are shared equally between atoms.
b) Electrons are transferred from one atom to another.
c) Electrons are delocalized and move freely through the structure.
d) Electrons are held tightly within individual atoms.

14. What is a lone pair of electrons?
a) Electrons shared between two atoms.
b) Electrons involved in an ionic bond.
c) Electrons that are not involved in bonding.
d) Electrons in the outermost energy level.

15. Which of the following affects the strength of an ionic bond?
a) The size of the atoms involved.
b) The electronegativity difference between the atoms.
c) The number of valence electrons.
d) The number of lone pairs.

Answers:

1. b 2. c 3. b 4. b 5.c 6. b 7. c 8. b 9. d 10. b 11. c 12. c 13. c 14. c 15. b

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21.04.202517:17

Aptitude Analogy questions

1. "Ocean" is to "Water" as "Forest" is to:
   a) Grass
   b) Leaves
   c) Trees
   d) Animals

2. "Sun" is to "Day" as "Moon" is to:
   a) Night
   b) Stars
   c) Sky
   d) Darkness

3. "Butterfly" is to "Cocoon" as "Bird" is to:
   a) Eggs
   b) Nest
   c) Wings
   d) Beak

4. "Library" is to "Books" as "Garden" is to:
   a) Trees
   b) Flowers
   c) Soil
   d) Seeds

5. "Doctor" is to "Hospital" as "Teacher" is to:
   a) Classroom
   b) Books
   c) Students
   d) Exams

6. "Fish" is to "Swim" as "Bird" is to:
   a) Walk
   b) Fly
   c) Sing
   d) Nest

7. "Pen" is to "Ink" as "Pencil" is to:
   a) Eraser
   b) Lead
   c) Paper
   d) Sharpener

8. "Car" is to "Road" as "Boat" is to:
   a) Ocean
   b) Sky
   c) Dock
   d) Captain

9. "Candle" is to "Flame" as "Lamp" is to:
   a) Wire
   b) Light
   c) Shade
   d) Switch

10. "Bee" is to "Honey" as "Cow" is to:
    a) Meat
    b) Hay
    c) Milk
    d) Grass

11. "Journey" is to "Travel" as "Study" is to:
    a) Learn
    b) School
    c) Read
    d) Homework

12. "Rain" is to "Wet" as "Fire" is to:
    a) Heat
    b) Smoke
    c) Ashes
    d) Burn

13. "Plane" is to "Fly" as "Submarine" is to:
    a) Dive
    b) Float
    c) Sail
    d) Sink

14. "Clock" is to "Time" as "Thermometer" is to:
    a) Heat
    b) Temperature
    c) Weather
    d) Rain

15. "Doctor" is to "Medicine" as "Chef" is to:
    a) Ingredients
    b) Knife
    c) Food
    d) Recipe

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01.04.202502:04

Most common chemistry Questions for Entrance Exam from: atomic model

1. Bohr's atomic model successfully explained the:
(A) Spectra of all elements
(B) Spectra of hydrogen
(C) Existence of isotopes
(D) Wave nature of electrons

2. In Bohr's model, electrons can move to a higher energy level by:
(A) Emitting energy
(B) Absorbing energy
(C) Colliding with other electrons
(D) Moving closer to the nucleus

3. The quantum mechanical model of the atom treats electrons as:
(A) Particles only
(B) Waves only
(C) Both particles and waves
(D) Neither particles nor waves

4. Which principle states that it is impossible to know both the exact position and momentum of an electron simultaneously?
(A) Pauli Exclusion Principle
(B) Hund's Rule
(C) Heisenberg Uncertainty Principle
(D) Aufbau Principle

5. Atomic orbitals are regions of space where there is a high probability of finding:
(A) Protons
(B) Neutrons
(C) Electrons
(D) The nucleus

6. Which quantum number describes the shape of an atomic orbital?
(A) Principal quantum number (n)
(B) Azimuthal quantum number (l)
(C) Magnetic quantum number (ml)
(D) Spin quantum number (ms)

7. The maximum number of electrons that can occupy a p subshell is:
(A) 2
(B) 4
(C) 6
(D) 10

8. Which rule states that electrons will individually occupy each orbital within a subshell before doubling up in any one orbital?
(A) Pauli Exclusion Principle
(B) Hund's Rule
(C) Heisenberg Uncertainty Principle
(D) Aufbau Principle

9. According to the Aufbau principle, electrons fill orbitals in order of:
(A) Increasing energy
(B) Decreasing energy
(C) Increasing atomic number
(D) Decreasing atomic number

10. What does the Pauli Exclusion. Principle state?
(A) Electrons must fill the lowest energy levels first
(B) No two electrons in the same atom can have the same set of four quantum numbers
(C) Electrons must occupy each orbital within a subshell individually before pairing up
(D) It is impossible to know both the exact position and momentum of an electron simultaneously

Answers:

1. B
2. B
3. C
4. C
5. C
6. B
7. C
8. B
9. A
10. B
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转发自:

Oromia Times

18.04.202518:08

"Qormaata biyyoolessaa kutaa 12ffaa ji'a tokkoo/ji'a tokkoo fi walakkaa keessatti kennuudhaaf qophiin taasifamaa jira" - Birhaanuu Naggaa (Professor)

Qormaanni biyyoolessaa kutaa 12ffaa bara kanaa ji'a tokkoo/ji'a tokkoo fi walakkaa booda akka kennamu Ministirri Ministeera Barnootaa Prof. Birhaanuu Naggaa ibsaniiru.

Ministirri kun, "Qormaanni kun bifa qormaata haaraa kanaan yeroo afraffaadha" jedhan.

Ministirri Barnootaa yeroo waa’ee qormaata bara kanaa kan dubbatanitti, bara kana barattoonni kuma 150 ta’an qormaata isaanii toora interneetii irratti akka fudhatan qophiin taasifamaa jiraachuu ibsaniiru.

Prof. Birhaanuu, akka jedhanitti, "Adeemsa nuffisiisaan barattoota bakka tokko irraa gara bakka biraatti sochoosuu mannaa bara darbe barattoota 29,000f qormaata onlaayinii kennine, bara kana ammoo barattoota kuma 150f qormaata onlaayinii kennuudhaaf qophaa'aa jirra."

Ministirri kun guyyaa qormaata biyyoolessaa kutaa 12ffaa hin ibsine, garuu ji'a tokko ykn ji'a tokkoo fi walakkaa booda qormaata kana kennuudhaaf qophiin taasifamaa akka jiru ibsaniiru.

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