16. What is the key characteristic of uniform motion?

A. The object moves in a circular path.

B. The object covers equal distances in equal intervals of time.

C. The object accelerates continuously.

D. The velocity of the object changes.

Answer: B. The object covers equal distances in equal intervals of time.

17. Which of the following statements is true for non-uniform motion?

A. The object covers equal distances in equal intervals of time.

B. The object’s speed is constant throughout the motion.

C. The object’s speed changes during motion.

D. The object never accelerates.

Answer: C. The object’s speed changes during motion.

18. The average speed of an object is defined as:

A. The total distance divided by the total time taken.

B. The total displacement divided by the total time taken.

C. The change in velocity divided by the time.

D. The total distance divided by the change in velocity.

Answer: A. The total distance divided by the total time taken.

19. What is the instantaneous velocity of an object?

A. The velocity at any given point in time.

B. The average velocity over a period of time.

C. The total distance divided by the total time.

D. The rate of change of acceleration.

Answer: A. The velocity at any given point in time.

20. In uniformly accelerated motion, the acceleration:

A. Increases with time.

B. Decreases with time.

C. Remains constant throughout the motion.

D. Varies periodically.

Answer: C. Remains constant throughout the motion.

21. An object is moving in a straight line with a velocity of 20 m/s. After 5 seconds, its velocity becomes 30 m/s. What is the acceleration of the object?

A. 2 m/s²

B. 1 m/s²

C. 5 m/s²

D. 0.5 m/s²

Answer: A. 2 m/s²

22. If an object moves with uniform velocity, what is the relationship between average velocity and instantaneous velocity?

A. Average velocity is greater than instantaneous velocity.

B. Average velocity equals instantaneous velocity.

C. Average velocity is zero.

D. Average velocity is less than instantaneous velocity.

Answer: B. Average velocity equals instantaneous velocity.

23. Which of the following is true for an object in uniformly accelerated motion starting from rest?

A. The speed of the object remains constant.

B. The velocity of the object changes linearly with time.

C. The distance traveled remains constant.

D. The velocity decreases with time.

Answer: B. The velocity of the object changes linearly with time.

24. An object moves with a uniform acceleration of 4 m/s². What will be its velocity after 5 seconds if its initial velocity is 10 m/s?

A. 30 m/s

B. 40 m/s

C. 50 m/s

D. 60 m/s

Answer: A. 30 m/s

25. In the case of non-uniform motion, which of the following quantities varies with time?

A. Average speed

B. Instantaneous velocity

C. Total displacement

D. Distance traveled

Answer: B. Instantaneous velocity

26. An object travels a distance of 100 meters in the first 10 seconds and a distance of 200 meters in the next 10 seconds. What is the average speed of the object during the total time?

A. 20 m/s

B. 15 m/s

C. 30 m/s

D. 25 m/s

Answer: B. 15 m/s

27. For uniformly accelerated motion, the displacement at any time 't' is given by:

A. s = ut + (1/2) at²

B. s = u + at

C. s = u + (1/2) a²

D. s = (1/2) u² + at

Answer: A. s = ut + (1/2) at²

28. If an object starts from rest and moves with constant acceleration, the graph of its velocity versus time will be:

A. A straight line with a positive slope.

B. A horizontal straight line.

C. A straight line with a negative slope.

D. A curved line.

Answer: A. A straight line with a positive slope.

29. Which of the following is true about the motion of an object with zero acceleration?

A. The object moves with uniform speed in a straight line.

B. The object’s speed continuously decreases.

C. The object’s speed continuously increases.

D. The object undergoes non-uniform motion.

Answer: A. The object moves with uniform speed in a straight line.

30. A car accelerates from 10 m/s to 30 m/s in 5 seconds. What is the average speed of the car during this period?

A. 20 m/s

B. 15 m/s

C. 25 m/s

D. 30 m/s

Answer: A. 20 m/s