MCQ

MCQ 11 Mark

According to law of conservation of energy, energy changes from one form to another form, but the total energy of that system

Answer

Correct option: D.

remains the same

remains the same

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MCQ 21 Mark

The correct statement is

✓
Both work and energy have the same units
B
Potential energy of a body is due to its motion
C
Kinetic energy of a body is due to its position or state
D
Kinetic energy can change into potential energy, but potential energy cannot change into kinetic energy.

Answer

Correct option: A.

Both work and energy have the same units

Both work and energy have the same units

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MCQ 31 Mark

When a bulb lights up on passing current, the change of energy is

Answer

Correct option: C.

from electrical energy to heat and light energy

from electrical energy to heat and light energy

MCQ 41 Mark

The energy stored in an electric cell is

Answer

Correct option: A.

chemical energy

chemical energy

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MCQ 51 Mark

A ball rolling on the ground possesses

Answer

Correct option: A.

kinetic energy

MCQ 61 Mark

When we rub our hands

Answer

Correct option: B.

mechanical energy changes into heat energy

PHYSICS MCQ