Force, Motion & Gravity MCQs with Answers

A ball is thrown horizontally from the top of a 20 m high hill. It strikes the ground at an angle of 45°. With what speed was it thrown?

• A.10 m/s
• B.20 m/s
• C.30 m/s
• D.40 m/s

When a body reaches its terminal velocity, the acceleration of the body becomes?

• A.Maximum
• B.Zero
• C.Constant but not zero
• D.Equal to gravitational acceleration

Past Paper MCQ

The law of inertia is also called _?

• A.Law of Gravitation
• B.Second Law of Motion
• C.Third Law of Motion
• D.First Law of Motion

A glider moves on a horizontal surface back and forth ?

• A.Vₓ = 0 and aₓ = 0
• B.Vₓ = 0 and aₓ < 0
• C.Vₓ > 0 and aₓ = 0
• D.Vₓ < 0 and aₓ > 0

The critical velocity vc = ?

• A.√(g/R)
• B.√(2gR)
• C.gR
• D.√(gR)

If the length of a second's pendulum is L, then the length of a pendulum having a period of 1 second will be _?

• A.L/2
• B.L/4
• C.L
• D.2L

In simple harmonic motion (S.H.M), the restoring force is minimum at?

• A.At every point equally
• B.Extreme position
• C.Halfway between mean and extreme position
• D.Mean position

The springs in brakes and clutches are used ?

• A.To absorb shocks
• B.To store energy
• C.To restore original position
• D.To increase friction

Why do raindrops fall with constant speed during the later stages of their descent?

• A.The mass of raindrops decreases as they fall
• B.Gravity becomes zero at lower altitudes
• C.Air resistance just balances the force of gravity
• D.Atmospheric pressure pushes them upward

What is another name for the second law of motion?

• A.Law of Inertia
• B.Law of Acceleration
• C.Law of Action-Reaction
• D.Law of Gravitation