Light & Sound waves

Both light & sound can travel through a vacuum.

• True

• False

A high pitched sound has a low wavelength.

• True

• False

The main factor which effects the speed of a sound wave is

• amplitude of the sound wave

• loudness of the sound wave

• intensity of the sound wave

• properties of the medium

• pitch of the sound wave

Consider the diagram below of several circular waves created at various times and locations. The diagram illustrates

• Interference

• Doppler effect

• Diffraction

• Polarization

In the diagram above, a person positioned at point A would perceive __________ frequency as the person positioned at point B.

• a higher

• a lower

• the same

A girl moves away from a source of sound at a constant speed. Compared to the frequency of the sound wave produced by the source, the frequency of the sound wave heard by the girl is ____

• higher

• lower

• the same

• 74,800 m

• 1.0 m

• 0.65 m

• 240 m/s

• 600 m/s

• 370 m/s

What is sound?

• A type of electromagnetic wave

• A form of energy that travels through atoms

• A visible light spectrum

• A chemical reaction

What does the area pointed by the arrow in the diagram represent?

• compression

• rarefaction

• equilibrium