Physics Quiz 09 (Chapter 11)

The material through which a mechanical wave travels is

• a medium.

• empty space.

• ether.

• air.

The distance between two troughs of a transverse wave is the wave’s

• amplitude.

• wavelength.

• frequency.

• rarefaction.

A wave is passing through a uniform medium. As the frequency of this wave increases, its wavelength

• depends on amplitude.

• decreases.

• increases.

• does not change.

When two transverse waves traveling through a medium meet and exactly coincide, the resulting displacement of the medium

• is the sum of the displacements of each wave.

• is zero.

• is always greater than the displacement of either wave alone.

• is always destructive.

When two waves having displacements in opposite directions meet, _____ occurs.

• complete cancellation

• no interference

• constructive interference

• destructive interference

Two waves meet and interfere constructively. Which one of the following factors increases?

• period

• frequency

• amplitude

• wavelength

The diagram above represents two pulse waves moving toward each other through a medium. The two waves will exactly coincide when they reach point A. At point A, the amplitude of the combined waves will be

• twice that of either wave alone.

• the same as either wave alone.

• half that of either wave alone.

• zero.

A wave pattern on a stretched string appears to be stationary. This wave pattern is an example of a

• longitudinal wave.

• non-periodic wave.

• pulse wave.

• standing wave.

In a standing wave on a vibrating string, a point that appears to remain stationary is a(n)

• antinode.

• point of constructive interference.

• node.

• rarefaction.

The diagram above represents a certain standing wave on a vibrating string. This standing wave has

• 4 nodes and 3 antinodes.

• 3 nodes and 4 antinodes.

• 2 nodes and 3 antinodes.

• 3 nodes and 2 antinodes.