Advertisements
Advertisements
प्रश्न
What kind of energy is possessed by the following?
A running car ____________
What kind of energy is possessed by the following?
A moving car
Advertisements
उत्तर
Kinetic energy
संबंधित प्रश्न
A body falls freely under gravity from rest. Name the kind of energy it will possess while falling.
Show that the sum of kinetic energy and potential energy (i.e., total mechanical energy) is always conserved in the case of a freely falling body under gravity (with air resistance neglected) from a height h by finding it when
- The body is at the top.
- the body has fallen a distance x.
- the body has reached the ground.
A pendulum is oscillating on either side of its rest position. The correct statement is:
A stone of mass 500 g is thrown vertically upwards with a velocity of 15 m/s. Calculate:
- the potential energy at the greatest height,
- the kinetic energy on reaching the ground, and
- the total energy at its half-way point.
Is energy a vector quantity?
What kind of energy is possessed by the following?
Water stored in the reservoir of a dam __________.
What is the difference between potential energy and kinetic energy?
Water stored in a dam possesses ______.
Name the device or machine which convert :
Heat energy into kinetic energy (or mechanical energy).
Name the device or machine which convert :
Chemical energy into kinetic energy (or mechanical energy).
What kind of energy transformation take place at a hydroelectric power station?
How much electric energy in kWh is consumed by an electrical appliance of 1000 watts when it is switched on for 60 minutes?
Name the energy transfers which occur when an electric ball rings.
Name the energy transfers which occur when there is a picture on a television screen.
Name the energy transfers which occur when a torch is on.
Which one of the following is not the unit of energy?
Which of the following energy change involves frictional force?
A microphone converts :
In the case of negative work, the angle between the force and displacement is
