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.

1,166.

The wavelength of a stationary wave is 24.0cm. What is the distance between a node and the next antinodes?

A.

6.0cm

B.

12.0cm

C.

18.0cm

D.

24.0cm

E.

48.0cm

Correct answer is A

No explanation has been provided for this answer.

1,167.

The statement that the mechanical advantage of a machine is 3 means that the

A.

efficiency is 33\(\frac{1}{3}\)%

B.

effort is three times as large as the load

C.

mechanical advantage is 3 times as large as the velocity ratio

D.

ratio of the effort to the load is 1: 3

E.

Velocity ratio is 3

Correct answer is D

No explanation has been provided for this answer.

1,168.

Which is a stringed Instrument?

A.

drum

B.

flute

C.

piano

D.

saxophone

E.

trumpet

Correct answer is C

today the piano is generally considered to be both a stringed and a percussion instrument.

1,169.

Which statement about the concept of temperature is NOT true?

A.

Temperature decides the direction of heat flow between two bodies

B.

Temperature is a measure of coldness of a body

C.

Temperature is a vector quantity

D.

Temperature is a measure of hotness of a body.

E.

Temperature scales include Fahrenheit, Celsius and Kelvin

Correct answer is C

No explanation has been provided for this answer.

1,170.

An object placed 15cm from a converging lens forms a real image whose magnification is 2.0. What is the focal length of the lens?

A.

5.00cm

B.

10.00cm

C.

15.00 cm

D.

18.00 cm

E.

20.00cm

Correct answer is B

No explanation has been provided for this answer.