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प्रश्न
What kind of energy is possessed by the following?
A stretched rubber band _____________
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उत्तर
A stretched rubber band possesses elastic potential energy.
संबंधित प्रश्न
A body falls freely under gravity from rest. Name the kind of energy it will possess while falling.
A pendulum is oscillating on either side of its rest position. The correct statement is:
State whether the object possess kinetic energy, potential energy, or both :
A ceiling fan in the off position ______________
What kind of energy is possessed by the following?
Water stored in the reservoir of a dam __________.
What kind of energy is possessed by the following?
A compressed spring ____________.
A boy weighing 40 kg makes a high jump of 1.5 m.
What is his kinetic energy at the highest point?
What is the difference between potential energy and kinetic energy?
A ball of mass 0.5 kg slows down from a speed of 5 m/s so that of 3 m/s. Calculate the change in kinetic energy of the ball. State your answer giving proper units.
Water stored in a dam possesses ______.
Name the device or machine which convert :
Light energy into electrical energy.
Name the device or machine which convert :
Electrical energy into light energy.
How much electrical energy in joules does a 100 watt lamp consume : in 1 second?
Describe the energy changes which take place in a radio.
Explain the transformation of energy in the following cases :
(i) A ball thrown upwards.
(ii) A stone dropped from the roof of a building.
Name the energy transfers which occur when there is a picture on a television screen.
A ball falls to the ground as shown below :
What is the kinetic energy of ball when it hits the ground?
When an object falls freely towards the earth, then its total energy :
Which of the following energy change involves frictional force?
How much energy does a 100 W electric bulb transfer in 1 minute?
An automobile engine propels a 1000 kg car (A) along a levelled road at a speed of 36 km h–1. Find the power if the opposing frictional force is 100 N. Now, suppose after travelling a distance of 200 m, this car collides with another stationary car (B) of the same mass and comes to rest. Let its engine also stop at the same time. Now the car (B) starts moving on the same level road without getting its engine started. Find the speed of the car (B) just after the collision.
