EASY
8th ICSE
IMPORTANT
Earn 100

Energy possessed by a body by virtue of its motion.

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Important Questions on Energy

MEDIUM
8th ICSE
IMPORTANT
New Trends in ICSE Physics 8>Chapter 4 - Energy>EXERCISES>Q 2
Energy possessed by a body by virtue of its position.
MEDIUM
8th ICSE
IMPORTANT
New Trends in ICSE Physics 8>Chapter 4 - Energy>EXERCISES>Q 3

Name the following:

The rate of doing work. ( Choose from: Energy, Force, Power)

MEDIUM
8th ICSE
IMPORTANT
New Trends in ICSE Physics 8>Chapter 4 - Energy>EXERCISES>Q 4
The capacity to do work is know as
MEDIUM
8th ICSE
IMPORTANT
New Trends in ICSE Physics 8>Chapter 4 - Energy>EXERCISES>Q 5

Energy possessed by an object at a point above the ground as the work done in raising it from the ground to that point against gravity is known as:

(Choose from the following: Gravitational potential energy/ Gravitational kinetic energy)

HARD
8th ICSE
IMPORTANT
New Trends in ICSE Physics 8>Chapter 4 - Energy>EXERCISES>Q 1
The kinetic energy  of an object of mass 'm’ moving  with a velocity  of  5 m s-1 is 25 J. What will be its kinetic energy when its velocity is doubled? What will be its kinetic energy when its velocity is increased three times?
HARD
8th ICSE
IMPORTANT
New Trends in ICSE Physics 8>Chapter 4 - Energy>EXERCISES>Q 2
An object of mass 40 kg is raised to a height of 5 m Above the ground. What is its potential energy? If the object is allowed to fall, find its kinetic energy when it is half-way down.(g =10 ms-2).
HARD
8th ICSE
IMPORTANT
New Trends in ICSE Physics 8>Chapter 4 - Energy>EXERCISES>Q 3
A rocket is moving up with a velocity v. If the velocity of this rocket is suddenly tripled, what will be the ratio of two kinetic energies?
EASY
8th ICSE
IMPORTANT
New Trends in ICSE Physics 8>Chapter 4 - Energy>EXERCISES>Q 4
If you apply 1 joule of energy to lift a book of 0.5 kg, how high will it rise? (Take g=10 m s-2)