EASY
8th ICSE
IMPORTANT
Earn 100

Take a ping-pong ball. Release it from a height on a hard, smooth floor. You will observe that the ball after striking the floor bounces several times. Try to answer the following questions:

What happens to the energy of the ball when the ball stops bouncing?

Important Questions on Energy

EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q A
A coolie does no work against the force of gravity while carrying a luggage on a road.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q A
The energy stored in water of a dam is the kinetic energy.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q A
Power spent by a body depends on the time for which it does work.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q A
_____ is said to be done by a force on the body when the body displaces.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q A
The energy of a body is its capacity to do _____.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q A
The S.I. unit of energy is _____.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q A
Gravitational potential energy U = mass × force of gravity on unit mass× _____.
EASY
8th ICSE
IMPORTANT
Concise Physics Middle School for Class 8>Chapter 4 - Energy>TEST YOURSELF>Q A
Kinectic energy = 12× mass ×  _____ 2.