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.

211.

Which of the following statements is not a characteristic of a plane progressive wave?

A.

Energy travels out through the medium

B.

Neighboring points along the profile possess different amplitudes

C.

Neighboring points along the profile possess the same amplitude

D.

Neighboring particles vibrate with different phase

Correct answer is B

No explanation has been provided for this answer.

214.

The following statements about a loudspeaker are correct except?

A.

its contains a permanent magnet

B.

sound signal converted to varying current signal enters the speech coil

C.

the current in the speech coil creates a magnetic force on the coil

D.

the magnetic force on the speech coil is uni-directional.

Correct answer is A

No explanation has been provided for this answer.