EASY
8th ICSE
IMPORTANT
Earn 100

State the law of conservation of energy.

Important Questions on Energy

MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q G
Explain why water stored in a dam has potential energy.
MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q G
What is meant by mechanical energy? Explain in detail.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q G
Describe the work-energy relationship by giving a suitable example.
HARD
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q G
Describe the energy transformation taking place in an oscillating pendulum.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q H
Calculate the work done in pushing a cart through a distance of 10 m when the force applied on it is equal to 120 N.
MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q H
If 1000 J of work is done by a machine to move a body through a distance of 20 m, then find the force applied on the body.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q H
Calculate the kinetic energy of an object weighing 600 k g moving at a velocity of 30 m s-1.
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q H
Calculate the potential energy of a stone weighing 2.5 kg placed at a height of 6 m. g=10 ms-2