Force, Motion & Gravity MCQs with Answers

Sliding friction is always _ than rolling friction.

• A.Greater
• B.Lesser
• C.Equal
• D.None of these

The turning effect of force is called _?

• A.Impulse
• B.Momentum
• C.Torque
• D.Pressure

Oscillations are damped due to the presence of ?

• A.Frictional force
• B.Elastic force
• C.Gravitational force
• D.Centripetal force

A body will be in translational equilibrium if?

• A.∑ F = 0
• B.∑ τ = 0
• C.∑ p = 0
• D.∑ v = 0

A man in a lift moving upward with constant velocity will conclude that his weight has ?

• A.Increased
• B.Decreased
• C.Not changed
• D.Become zero

A stone is whirled, it experiences an inward force by string which is?

• A.Proportional to the speed
• B.Proportional to square of speed
• C.Inversely proportional to speed
• D.Independent of speed

Impulse is the product of ?

• A.Mass and Acceleration
• B.Mass and Velocity
• C.Force and Distance
• D.Force and Time

A simple pendulum suspended from the ceiling of a train has a period T when the train is at rest. When the train is accelerating with a uniform acceleration, the time period of the simple pendulum will?

• A.Increase
• B.First increase then decrease
• C.Remain the same
• D.Decrease

A truck has tyres of area 3 m². It puts a pressure of 4000 N/m² on the road. What is the weight of the truck? (Hint: Weight = Force)

• A.12000 N
• B.1333.33 N
• C.1200 N
• D.4000 N

Which of the following is/are a non-conservative force?

• A.Normal force
• B.Gravitational force
• C.Electrostatic force
• D.Magnetic force