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

Q.

Match the following :

A			B
(a)		machine		(1)		chemical energy
(b)		winding up clockwork		(2)		kinetic energy
(c)		digestion, excretion		(3)		mechanical energy
(d)		rolling object		(4)		physical energy
(e)		wood		(5)		potential energy

Q. Match the following columns:​

Column A	Column B
1. Running water ​	A. heat energy​
2. Burning​	B. vibrations​
3. Energy ​	C. atom bomb​
4. Sound energy ​	D. kinetic energy​
5. Nuclear energy ​	E. joule​

Q. Which of the following energy change involves frictional force?

(a) chemical energy to heat energy
(b) kinetic energy to heat energy
(c) potential energy to sound energy
(d) chemical energy to kinetic energy

Q.

Which of the following energy change involves frcitional force ?

(a) chemical energy to heat energy

(b) kinetic energy to heat energy

(c) potential energy to sound energy

(d) chemical energy to kinetic energy

Q.

Name the form of energy (kinetic energy K or potential energy U) possessed in the following cases:

(a) A moving cricket ball

(b) A compressed spring

(c) A moving bus

(d) A stretched wire

(e) An arrow shot out of a bow

(f) A piece of stone placed on the roof.