Chapter 23 - Waves - Section 2

The wavelength of a wave on a string is 1 meter and its speed is 5 m/s. Calculate the frequency and the period of the wave.

• The frequency of the wave is 5 Hz and the period is 0.20 seconds

• The frequency of the wave is 0.20 Hz and the period is 5 seconds.

The wavelength of a wave is 0.5 meter and its period is 2 seconds. What is the speed of this wave?

• The speed is 2 m/s.

• The speed is 10 m/s.

• The speed is 1 m/s.

The wavelength of a wave is 100 meters and its frequency is 25 hertz. What is the speed of this wave? What is its period?

• The speed is 2,500 m/s. The period is 4 seconds.

• The speed is 2,500 m/s. The period is 0.04 second.

• The speed is 250 m/s. The period is 0.04 second.

If the period of a wave is 15 seconds, how many wavelengths pass a certain point in 2 minutes?

• 8 cycles or wavelengths pass the point

• 30 cycles or wavelengths pass the point

• 60 cycles or wavelengths pass the point

The wavelength of the wave shown in this harmonic motion graph is about:

• 1.2 meters

• 2.5 meters

• 5.0 meters

Which is the fastest way to send information, using sound waves, light waves, or water waves?

• sound

• light

• water

What is the speed of a wave that has a wavelength of 0.4 meter and a frequency of 10 hertz?

• 4 m/s

• 2.5 m/s

• 40 m/s

A(n) ________________ is a travelling oscillation.

• period

• frequency

• wave

The distance from one crest to the next is a wave’s _________________.

• amplitude

• wave height

• wave length

For the wave in the diagram, which measurement shows

the amplitude?

• a

• b

• c

• d