Advertisements
Advertisements
Question
The potential energy of a body is the energy by virtue of its ______.
Solution
The potential energy of a body is the energy by virtue of its position.
APPEARS IN
RELATED QUESTIONS
The potential energy of a freely falling object decreases progressively. Does this violate the law of conservation of energy? Why?
State two factors on which the potential energy of a body at a certain height above the ground depends.
A body of mass m is moved from ground to a height h. If the force of gravity on mass of 1 kg is g newton, find the force needed to lift the body.
A body of mass m is moved from ground to a height h. If force of gravity on mass of 1 kg is g newton, find the work done in lifting the body.
A weightlifter is lifting weights of mass 200 kg up to a height of 2 metres. If g = 9.8 m s−2, calculate :
potential energy acquired by the weights.
A weightlifter is lifting weights of mass 200 kg up to a height of 2 metres. If g = 9.8 m s−2, calculate :
work done by the weightlifter
Explain by an example what is meant by potential energy. Write down the expression for gravitational potential energy of a body of mass m placed at a height h above the surface of the earth.
A car is accelerated on a levelled road and acquires a velocity 4 times of its initial velocity. During this process, the potential energy of the car :
If we increase the velocity of a car moving on a flat surface to four times its original speed, its potential energy ______.
Potential energy and heat energy are the two forms of mechanical energy.