11. The acceleration due to gravity on Earth is approximately:
a) 8.9 m/s²
b) 9.8 m/s²
c) 10.8 m/s²
d) 12.5 m/s²
12. The time taken by a freely falling object to reach the ground depends on:
a) Its mass
b) Its initial velocity
c) The acceleration due to gravity
d) The shape of the object
13. A body moving in a straight line with uniform acceleration has:
a) Constant velocity
b) Constant speed
c) Changing velocity
d) Zero displacement
14. The displacement of an object can be zero even if the distance traveled is non-zero.
a) Yes It Can be
b) No it Can not be
15. If a body moves with uniform acceleration, its velocity:
a) Increases or decreases linearly
b) Remains constant
c) Becomes zero
d) Changes randomly
16. If a body starts from rest, its initial velocity is:
a) Infinity
b) 1 m/s
c) Zero
d) 10 m/s
17. The SI unit of displacement is:
a) m
b) m²
c) m/s
d) s²
18. The motion of planets around the Sun is an example of:
a) Rectilinear motion
b) Rotational motion
c) Uniform circular motion
d) Vibratory motion
19. If velocity is constant, acceleration is:
a) Increasing
b) Decreasing
c) Zero
d) Non-zero
20. The acceleration of an object moving in a circle at constant speed is:
a) Zero
b) Directed toward the center
c) Tangential to the motion
d) Directed away from the center