POST TEST

Direction: Choose the correct answer

1.How are sound waves classified?

a. Circular Waves

b. Electromagnetic waves

c. Longitudinal waves

d. Transverse waves

2. Which is true about speed of sound in air?

a. It is always zero

b. It increase with temperature

c. It is the same as in all media

d. It is unaffected by a change in temperature

3.Which of the following is determined by the amplitude of soundwaves?

a. Frequency

b. Loudness

c. Pitch

d. Timbre

4.In which media will sound travel fastest?

a. Air

b. Vacuum

c. Water

d. Wood

5.Which of the following best describes a high frequency sound? It has:

a. Low pitch

b. High pitch

c. Low energy

d. A and C​