Physics talent test

Developed by: Sanjay

Brain teaser

Question 1: If the velocity of a body increases by three times the previous value, the percentage change in Kinetic energy is

	800%
	15%
	900%
	1500%

Question 2: If Kinetic energy increases to 16 times then the velocity should be increased to

	4 times
	16 times
	2 times
	3 times

Question 3: Energy possessed by a body by virtue of its position is called _______ energy.

	Potential
	Kinetic
	Chemical

Question 4: Gravitational potential energy is always _______.

	Negative
	Positive
	Neutral

Question 5: Elastic potential energy of a spring is independent on

	Elongation of spring
	Spring constant
	Both b and c
	Compression of spring

Question 6: Two bodies of masses 4 kg and 9 kg are lifted to the height from the ground, then the ratio of their potential energies is

	3:2
	2:3
	9:4
	4:9

Question 7: A man weighs 60 kg climbs up a stair case has 20 steps and each step has a height 20cm. The increase in potential energy of the man is

	6.1 kilo joules
	8.1 kilo joules
	9.1 kilo joules
	3.2 kilo joules

Question 8: 2 g of ice is melted. The amount of heat energy supplied is

	800 cal
	160 cal
	1080 cal
	150 cal

Question 9: The energy that can propagate through vacuum is

	Heat energy
	Light energy
	Light energy
	Sound energy

Question 10: The energy utilized in sun to give light and heat

	Kinetic energy
	Potential energy
	Mass energy
	Light energy

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