MEDIUM
8th ICSE
IMPORTANT
Earn 100

What is the speed of a runner of mass 50 kg whose kinetic energy while running is 2500 J?

Important Questions on Energy

MEDIUM
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Check your progress>Q B
A child climbs a wall of height 4 m. He now possesses a potential energy of 1600 J. What is the mass of the child? g=9.8 m s-2
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q A
In which of the following situations, no work is said to be done?
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q A
No work is said to be done if the angle between the directions of force and displacement is
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q A
If the force applied on a body decreases, then the work done on it will
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q A
When a ball is thrown vertically upwards, the gravitational potential energy of the ball
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q A
Which form of energy is possessed by a stretched spring?
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q A
Which of the following is an example of stored energy?
EASY
8th ICSE
IMPORTANT
Living Science Physics 8>Chapter 4 - Energy>Exercises>Q A
If the velocity of an object increases, then its kinetic energy