Physics questions and answers

Physics Questions and Answers

If you want to learn more about the nature and properties of matter and energy or you're simply preparing for a Physics exam, these Physics past questions and answers are ideal for you.

797.

The mouth piece of a telephone handset converts

A.

electrical energy to sound energy

B.

sound energy to electrical energy

C.

sound energy to radiowave

D.

radiowave to sound energy

Correct answer is B

No explanation has been provided for this answer.

798.

Resonance occurs when one vibrating object causes a second object to vibrate at its own natural

A.

amplitude

B.

speed

C.

frequency

D.

intensity

Correct answer is C

No explanation has been provided for this answer.

799.

When a body is thrown vertically upwards, its velocity at the maximum height is

A.

maximum

B.

zero

C.

double its initial value

D.

half its initial value

Correct answer is B

No explanation has been provided for this answer.

800.

A plank is placed along the path on which a wheel barrow containing sand is pushed at a construction site to prevent it from sticking as illustrated in the diagram given. The large area of the plank prevents the wheel barrow from getting stuck by

A.

increasing the reaction on the ground

B.

increasing the pressure on the ground

C.

decreasing the pressure on the ground

D.

decreasing the weight on the ground

Correct answer is C

No explanation has been provided for this answer.