Match the pairs. Group 'A' Group 'B' (1) Rolling object (a) Heat energy (2) Food (b) Atomic energy (3) Stretched bow (c) Kinetic energy (4) Sunlight (d) Potential energy (5) Uranium (e) Chemical energy

(1) Rolling object - (c) Kinetic energy A rolling object has kinetic energy. The kinetic energy is the energy that an object has due to its motion. (2) Food - (e) Chemical energy The food has stored chemical energy. When the bonds of compounds break in food due to the chemical reaction, it gives out energy. (3) Stretched bow - (d) Potential energy The energy possessed by a stretched bow is an example of potential energy that is in a body by virtue of its shape or position. (4) Sunlight - (a) Heat energy The sunlight contains heat energy. The heat energy from the sun is used in solar cookers to heat and cook food. Heat is also produced by the burning of fuel. Heat is commonly measured in the unit ‘calorie’. (5) Uranium - (b) Atomic energy The energy possessed by Uranium is an example of atomic energy. The heat liberated during the fission of atoms of heavy elements such as uranium, thorium is used to generate electricity. Group A Group B (1) Rolling object (c) Kinetic energy (2) Food (e) Chemical energy (3) Stretched bow (d) Potential energy (4) Sunlight (a) Heat energy (5) Uranium (b) Atomic energy

EASY

Earn 100

What is magnetic energy? List some of its uses.

Important Questions on Work and Energy

EASY

Science>Physics>Work and Energy>Different Forms of Energy

Define a kilowatt-hour. How is it related to joule?

MEDIUM

Science>Physics>Work and Energy>Different Forms of Energy

Two bodies A and B have masses in the ratio

5 : 1

and their kinetic energies are in the ratio

125 : 9

. Find the ratio of their velocities.

EASY

Science>Physics>Work and Energy>Different Forms of Energy

State an example of renewable resource.

MEDIUM

Science>Physics>Work and Energy>Different Forms of Energy

Distinguish between heat and temperature.

MEDIUM

Science>Physics>Work and Energy>Different Forms of Energy

What is ‘green energy’?

EASY

Science>Physics>Work and Energy>Different Forms of Energy

What are the various forms of energy?

MEDIUM

Science>Physics>Work and Energy>Different Forms of Energy

What are the various forms of energy? Give some examples of each.

EASY

Science>Physics>Work and Energy>Different Forms of Energy

In torch cell _____ energy is stored.

EASY

Science>Physics>Work and Energy>Different Forms of Energy

20 V

battery connected to a bulb drives a current of

5 A

through it. The energy supplied by the battery in

10

minutes is:

MEDIUM

Science>Physics>Work and Energy>Different Forms of Energy

In our daily life, we use different kinds of energy. We have to remember that we need to encourage the use of energy that is available in plenty in nature. The picture shown below is the substance that gives us energy. Write if the substance is available in plenty in nature or available in a limited amount in nature. Also mention the type of energy the substance gives us.

Question Image

EASY

Science>Physics>Work and Energy>Different Forms of Energy

What are the various forms of energy?

MEDIUM

Science>Physics>Work and Energy>Different Forms of Energy

Match the pairs.

Group 'A'	Group 'B'
(1) Rolling object	(a) Heat energy
(2) Food	(b) Atomic energy
(3) Stretched bow	(c) Kinetic energy
(4) Sunlight	(d) Potential energy
(5) Uranium	(e) Chemical energy