Force, Motion & Gravity MCQs with Answers

Amount of pressure of liquid increases with increase of _?

• A.Depth
• B.Density
• C.Volume
• D.Temperature

The resultant of two forces 3N and 4N acting at right angles to each other is?

• A.7N
• B.5N
• C.1N
• D.12N

For which pair of angles, where ranges for a projectile are equal, assuming initial velocity is kept constant?

• A.10°, 80°
• B.30°, 70°
• C.20°, 60°
• D.45°, 45°

The dimension of velocity is?

• A.[L T⁻¹]
• B.[L T⁻²]
• C.[M L T⁻¹]
• D.[L² T⁻¹]

The escape velocity of a body in the gravitational field of Earth is dependent on:

• A.Mass of the body
• B.Mass of Earth
• C.Shape of the body
• D.Rotation of Earth

A force is a or a that causes movement.

• A.Mass, Weight
• B.Speed, Velocity
• C.Push, Pull
• D.Work, Energy

Which units are commonly used to measure velocity?

• A.Metres per second
• B.Metres per second squared
• C.Newton per metre
• D.Kilogram per metre

An object is moving with constant speed along a circular path. Which of the following is/are true concerning this motion? (i) The displacement is zero (ii) The average speed is zero (iii) The acceleration is zero

• A.(i), (ii) and (iii)
• B.(i) and (ii) only
• C.(ii) and (iii) only
• D.(i) only

The instantaneous velocity of a body executing SHM is maximum when the phase of vibration with respect to displacement is _?

• A.0°
• B.90°
• C.180°
• D.270°

The total time of flight of a projectile is given by?

• A.(u sin θ) / g
• B.(u² sin 2θ) / g
• C.(2u sin θ) / g
• D.(u² sin² θ) / 2g