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G 11 Physics Worksheet Questions from Unit 5
70 question with solution.

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Ethiopian General Secondary Education Certificate Biology Examination for grade 10
from 1995 – 2011 and EUEE of 2014
From grade 9 unit 1_6 with answer

From grade 10 all units with answer

Ethiopian Secondary School Leaving Certificate Examination for grade 12 from 1995 –
2014
Biology from Grade 11 all units with answer

From grade 12 All units with answer.
All above question multiple choose classified as units with answer.
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Grade 9 Biology
Second Semester Mid-exam Exercises
50 multiple choose and 15 mutching

Grade 10 Biology
Second Semester Mid-exam Exercises
40 multiple choose and 15 mutching

Grade 11 Biology
Second Semester Mid-exam Exercises
100 multiple choose questions

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conceptual multiple-choice questions (MCQs) about projectile motion with answers: part I


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1. A projectile is fired at an angle θ with the horizontal. What is the vertical component of its velocity at the highest point?

A) Maximum
B) Minimum but not zero
C) Zero
D) Same as the initial vertical velocity

Answer: C) Zero

2. The time of flight of a projectile depends on which of the following factors?

A) Initial speed and angle of projection
B) Mass and shape of the projectile
C) Only the angle of projection
D) Only the acceleration due to gravity

Answer: A) Initial speed and angle of projection

3. If the angle of projection is increased from 30° to 60° while keeping the initial velocity constant, how does the range change?

A) Doubles
B) Halves
C) Remains the same
D) Becomes zero

Answer: C) Remains the same

4. At what angle of projection does a projectile achieve maximum range?

A) 30°
B) 45°
C) 60°
D) 90°

Answer: B) 45°

5. The horizontal range of a projectile is maximum when the angle of projection is 45°. What happens to the range if the angle is increased or decreased from this value?

A) Increases
B) Decreases
C) Remains constant
D) Doubles

Answer: B) Decreases

6. A projectile is fired horizontally from a height. Neglecting air resistance, what is the shape of the trajectory?

A) Straight line
B) Parabola
C) Circle
D) Ellipse

Answer: B) Parabola

7. Two projectiles are launched with the same initial velocity but at complementary angles (30° and 60°). How do their ranges compare?

A) Range of 30° is greater
B) Range of 60° is greater
C) Both ranges are equal
D) Cannot be determined

Answer: C) Both ranges are equal

8. Which of the following remains constant throughout the motion of a projectile?

A) Horizontal component of velocity
B) Vertical component of velocity
C) Speed of the projectile
D) Acceleration

Answer: A) Horizontal component of velocity

9. What is the angle of projection for which the maximum height and range of a projectile are equal?

A) 45°
B) 60°
C) 76°
D) 90°

Answer: C) 76°

10. A ball is thrown upward at an angle. Ignoring air resistance, when it returns to the ground, what can be said about its speed?

A) Greater than initial speed
B) Equal to initial speed
C) Less than initial speed
D) Zero

Answer: B) Equal to initial speed

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Biology five multiple-choice questions about cell functions, with the correct answers at the end of each question:

1. Which organelle is responsible for producing energy in a cell?
a) Nucleus
b) Mitochondria
c) Ribosome
d) Golgi apparatus
Answer: b) Mitochondria


2. What is the main function of the ribosomes in a cell?
a) Energy production
b) Protein synthesis
c) Waste disposal
d) Transport of materials
Answer: b) Protein synthesis


3. Which part of the cell controls what enters and exits?
a) Cytoplasm
b) Cell wall
c) Cell membrane
d) Lysosome
Answer: c) Cell membrane


4. What is the primary function of the nucleus?
a) Storing genetic material
b) Breaking down waste
c) Producing ATP
d) Transporting proteins
Answer: a) Storing genetic material


5. Which organelle is responsible for packaging and distributing proteins?
a) Golgi apparatus
b) Lysosome
c) Chloroplast
d) Vacuole
Answer: a) Golgi apparatus

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6. What is the role of microorganisms in the production of yogurt?

A) Ferment milk sugar into lactic acid
B) Decompose organic matter
C) Produce vitamins
D) Break down proteins

Answer: A) Ferment milk sugar into lactic acid


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7. Which of the following microorganisms is used in the production of insulin?

A) Saccharomyces cerevisiae
B) Escherichia coli
C) Penicillium notatum
D) Streptococcus thermophilus

Answer: B) Escherichia coli


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8. The process of converting nitrogen into a usable form for plants is called:

A) Denitrification
B) Nitrogen fixation
C) Nitrification
D) Ammonification

Answer: B) Nitrogen fixation


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9. Which of the following is an example of an infectious disease caused by a virus?

A) Malaria
B) Tuberculosis
C) Influenza
D) Ringworm

Answer: C) Influenza

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