Force, Motion & Gravity MCQs with Answers

Over-damping results in _?

• A.No return to equilibrium
• B.Faster return to equilibrium
• C.Oscillations with decreasing amplitude
• D.Slower return to equilibrium

When the mass of a body moving along a circle becomes half and radius becomes double, and v is constant, the centripetal force becomes?

• A.Double
• B.One-half
• C.One-fourth
• D.Four times

The angle described by the shaft in radians in one second for a flywheel rotating at a constant speed of 3000 rpm is:

• A.30 π
• B.50 π
• C.100 π
• D.300 π

A ball is thrown upward into the air with a speed that is greater than terminal speed. On the way up it slows down and after its speed equals the terminal speed but before it gets to the top of its trajectory ?

• A.It continues to slow down
• B.It speeds up
• C.It moves at constant speed
• D.It comes to rest immediately

Newton second is the unit of quantity ?

• A.Force
• B.Power
• C.Energy
• D.Momentum

Velocity is _ quantity?

• A.Scalar
• B.Vector
• C.Dimensionless
• D.None of these

Past Paper MCQ

Friction can be reduced by changing over from _?

• A.Sliding to rolling
• B.Rolling to sliding
• C.Static to dynamic
• D.Dynamic to static

A simple machine which consists of toothed wheels of different sizes is called ?

• A.Pulley
• B.Gear
• C.Lever
• D.Inclined plane

In velocity-time graph, the area under the graph is equal to the _?

• A.Displacement of object
• B.Acceleration of object
• C.Speed of object
• D.Distance covered by object

Free oscillations are always produced by?

• A.Restoring force & Inertia
• B.Restoring force & Friction
• C.Inertia & Damping force
• D.Friction & Damping force