Work & Energy MCQs with Answers

To double the total energy for a mass spring system oscillating in SHM, by what factor must the amplitude increase?

• A.2
• B.√3 (approx. 1.732)
• C.4
• D.√2 (approx. 1.414)

Which one is a bigger unit of energy?

• A.Joule
• B.Calorie
• C.Kilowatt hour
• D.Electron volt

Past Paper MCQ

The capacity to do work is called?

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

How does an angle between the force applied and the direction of motion influence the work done on an object?

• A.Work is maximum when the angle is 90°
• B.Work is maximum when the angle is 45°
• C.Work is maximum when the angle is 0°
• D.Work is independent of the angle between force and motion

When an object is thrown upward it rises to height 'h'. How high is the object in terms of h, when it has lost one third of its original Kinetic Energy?

• A.h/3
• B.h/2
• C.2h/3
• D.h/4

The dimensions of energy are the same as those of:

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

A body of mass 2kg moving with velocity of 4m/s has K.E equal to _?

• A.8 J
• B.16 J
• C.32 J
• D.4 J

A form of energy which can be found in the nucleus of an atom of an element?

• A.Chemical Energy
• B.Nuclear Energy
• C.Thermal Energy
• D.Electromagnetic Energy

The unit of rotational K.E is ?

• A.Newton
• B.Watt
• C.Joule
• D.Pascal

What type of energy does wind produce which is used to rotate the blades of a wind energy system?

• A.Potential energy
• B.Kinetic energy
• C.Thermal energy
• D.Chemical energy