Reading Quiz Ch 20 (Traveling Waves)

Reading Question 20.01

A graph showing wave displacement versus position at a specific instant of time is called a

snapshot graph.

history graph.

bar graph.

line graph.

composite graph.

Reading Question 20.03

Wave front diagrams

show the wavelengths of a wave.

show the crests of a wave.

show how the wave looks as it moves toward you.

show the forces acting on a string that’s under tension.

were not discussed in this chapter.

Reading Question 20.04

What kind of waves were analyzed in this chapter?

Sound waves

Light waves

String waves

Water waves

Sound, light, and string waves

Sound, light, string, and water waves

Reading Question 20.06

A wave on a string is traveling to the right. At this instant, the motion of the piece of string marked with a

dot is

Zero. Instantaneously at rest.

Left.

Down.

Right.

Up.

Reading Question 20.02

A graph showing wave displacement versus time at a specific point in space is called a

snapshot graph.

history graph.

bar graph.

line graph.

composite graph.

Reading Question 20.05

For a wave pulse on a string to travel twice as fast, the string tension must be

Increased by a factor of 4.

Decreased to one half its initial value.

Not possible. The pulse speed is always the same.

Increased by a factor of 2.

Decreased to one fourth its initial value.

Reading Question 20.07

The sound intensity level from one solo flute is 70 db. If 10 flutists standing close together play in unison,

the sound intensity level will be

The sound intensity level from one solo flute is 70 db. If 10 flutists standing close together play in unison,

the sound intensity level will be

80 db.

71 db.

70 db.

79 db.

700 db.