Work Energy
Practice Work Energy MCQs from Physics — Science.
What is the power of a pump that can lift 50 kg of water to a height of 10 m in 5 seconds? (g = 10 m/s^2)
The energy possessed by a body due to its deformed shape is:
If a force of 10 N acts on a body and the body is displaced by 2 m in the direction of the force, the work done is:
Percentage increase in KE when velocity is increased by 50% is:
Which of these devices converts light energy into electrical energy?
An object of mass 2 kg falls from a height of 10 m. What is its potential energy loss? (g = 10 m/s^2)
If work is done at the rate of 1 Joule per second, the power is:
What is the work done in lifting a 5 kg object to a height of 2 m?
If a force is perpendicular to the displacement, the work done is:
The kinetic energy of an object of mass 'm' and velocity 'v' is:
A man carries a 5 kg load on his head and moves 10 m along a horizontal path. The work done by him against gravity is:
The energy of an object increases when work is done ... it.
If a body of mass 10 kg is moving with a velocity of 2 m/s, its kinetic energy is:
Which of the following is the scalar quantity among these?
What is the formula for calculating gravitational potential energy?