Motion Test

Physics Examination | Time: 60 minutes | Marks: 50

Instructions: Answer all questions. Show all necessary workings for numerical problems. Write your answers in the spaces provided.

Multiple Choice Questions (10 × 2 = 20 marks)

1. Which of the following is a vector quantity?

A. Distance

B. Speed

C. Time

D. Velocity

2. The slope of a distance-time graph represents:

A. Acceleration

B. Velocity

C. Force

D. Displacement

3. A body is moving with uniform velocity. Its acceleration is:

A. Zero

B. Positive

C. Negative

D. Infinite

4. The SI unit of acceleration is:

A. m/s

B. km/h

C. m/s²

D. N/kg

5. When a body falls freely under gravity, it moves with:

A. Uniform velocity

B. Uniform acceleration

C. Variable acceleration

D. Zero acceleration

6. The area under a velocity-time graph represents:

A. Acceleration

B. Displacement

C. Distance

D. Speed

7. A car accelerates from rest at 2 m/s². What is its velocity after 5 seconds?

A. 2 m/s

B. 5 m/s

C. 10 m/s

D. 20 m/s

8. Which of the following is an example of uniform motion?

A. A car moving in city traffic

B. Moon moving around the Earth

C. A swinging pendulum

D. A freely falling stone

9. The motion of a satellite around the Earth is an example of:

A. Linear motion

B. Circular motion

C. Random motion

D. Oscillatory motion

10. If the displacement of an object is proportional to the square of time, then the object is moving with:

A. Uniform velocity

B. Uniform acceleration

C. Increasing acceleration

D. Decreasing acceleration

Numerical Problems (3 × 5 = 15 marks)

1. A car accelerates uniformly from 18 km/h to 36 km/h in 5 seconds. Calculate:

a) The acceleration

b) The distance covered by the car during this time

2. A stone is thrown vertically upward with a velocity of 49 m/s. Calculate:

a) The maximum height reached

b) The time taken to return to the Earth's surface (g = 9.8 m/s²)

3. A train starting from rest moves with a uniform acceleration of 0.2 m/s² for 5 minutes. Calculate:

a) The speed acquired

b) The distance travelled in this time

Question Answers (5 × 3 = 15 marks)

1. Differentiate between distance and displacement.

2. Explain uniform acceleration with an example.

3. Derive the equation of motion: v² = u² + 2as

4. What is relative motion? Explain with an example.

5. Draw a velocity-time graph for an object with uniform acceleration and derive the equation s = ut + ½at² from it.

End of Test | Good Luck!