Wave Quiz Part 2 Practice Test

Identify the part labeled C in the diagram

• Crest

• Trough

• Amplitude

• Wavelength

Which type of wave needs a medium to travel through?

• Electromagnetic

• Sound

• Light

• Ultraviolet

An engineer in a moving train blows the train's horn. The train is moving towards a person standing on the ground. Compared to the frequency of the sound that the engineer hears, the person standing on the ground hears a sound with

• a higher frequency.

• more variation in tone.

• greater amplitude.

• a lower frequency.

The number of waves that occur every second is called the ________.

The Frequency of a sound wave is 120 Hz. The wave speed is 32 m/s. What is the wavelength of the wave?

• 210 m/s

• 3840 m/s

• 3.75 m/s

• .27 m/s

Two scientists are attempting a test. They setup listening devices on the surface of a pool and below the surface of the water. Two speakers were setup, one out of the water and one under the water at the same distance from the listening devices. If they play the same sound out of both speakers at the same time, which listening device will pick up the sound first?

• The listening device at the surface since sound travels faster in the air

• The listening device under the water since sound travels faster under the water

• Both devices will pick up the sound at the same time

• Neither device will pick up the sound since the water will distort it.

If you press down on a piano key, let's say middle C, it generates a sound wave. Now, imagine that you press it down much softer so that it still plays the same tone but much softer. How would pressing the key down softer change the sound wave produced?

• The sound wave's wavelength would decrease

• The sound wave's amplitude and energy would decrease.

• The sound wave's frequency would decrease

• The sound wave's energy would increase

A wave that travels through matter, i.e. solid, liquid and/or gas. The particles of the

medium move parallel in to the direction of the wave. The wavelength is measured from rarefaction to

rarefaction or compression to compression.

• Longitudinal wave

• Transverse wave

• wavelength

• Longitudinal and transverse wave

The bouncing back of light, heat or sound from surface without absorption.

• Reflection

• Refraction

• Transmission

• Medium

What is the relationship between wavelength and frequency?

• As the wavelength increases (longer) the frequency

  decreases. As the wavelength decreases (shorter) the frequency increases.

• As the wavelength increases (shorter) the frequency

  decreases. As the wavelength decreases (longer) the frequency increases.

• As the wavelength decreases (longer) the frequency

  decreases. As the wavelength increases (shorter) the frequency increases.

• As the frequency increases (longer) the wavelength

  decreases. As the frequency decreases (shorter) the wavelength increases.