Wave Unit Review

Multiple Choice

The primary colors of light are

• green, blue, black

• cyan, magenta, yellow

• blue, green, red

• red, yellow, blue

Multiple Choice

Which of the following occurs as a light wave bends when it passes from one medium into another?

• refraction

• reflection

• destructive interference

• constructive interference

Multiple Choice

A translucent material

• scatters some light

• transmits all light

• absorbs all light

• reflects all light

Multiple Choice

The waves with the longest wavelengths in the electromagnetic spectrum are

• infrared rays

• gamma rays

• radio waves

• X-rays

Multiple Choice

To calculate the frequency of an electromagnetic wave, you need to know the speed of the wave and its

• wavlength

• refraction

• intensity

• amplitude

Multiple Choice

An ambulance siren sounds different as it approaches you than when it moves away from you. What scientific term would you use to explain how this happens?

• ultrasound

• rarefaction

• diffraction

• the Doppler Effect

Multiple Choice

A sound wave is an example of a

• longitudinal wave

• transverse wave

• standing wave

• surface wave

Multiple Choice

Suppose two waves collide and the temporary combined wave that results is SMALLER than the original waves. What term best describes this interaction?

• diffraction

• destructive interference

• standing wave formation

• constructive interference

Multiple Choice

When a wave strikes a solid barrier, it behaves like a basketball hitting a backboard. The wave behavior is called

• constructive interference

• diffraction

• refraction

• reflection

Multiple Choice

When a surfer rides an ocean wave on her surfboard, she is actually riding on

• a crest that is toppling over

• a trough of the wave

• the rest position of the wave

• a region of rarefaction

Multiple Choice

Which wave causes a medium to vibrate only in a direction parallel to the wave's motion?

• a transverse wave

• a surface wave

• a longitudinal wave

• none of these

Multiple Choice

A mechanical wave moves through a medium, which can be

• a liquid

• a solid

• a gas

• all of these

Multiple Choice

If the distance between two troughs of a wave is 5 meters and it is traveling at a speed of 150 m/s, what is the frequency of the wave?

• 30 Hz

• 750 Hz

• 155 Hz

• .03 Hz

Multiple Choice

The strings on a piano that produces an A sharp vibrates with a frequency of 250 Hz. If the sound waves produced by this string have a wavelength of 2.5 meters, what is the speed of the sound in air?

• 100 m/s

• .01 m/s

• 625 m/s

• 252.5 m/s

Multiple Choice

If the speed of a wave is 125 m/s and the frequency is 5 Hz, what is its wavelength?

• 625 m

• 25 m

• .04 m

• 700 m

Multiple Choice

What is the speed of a water wave with a frequency of 2.5 Hz and a wavelength of 2 m?

• 5 m/s

• 1.25 m/s

• 0.8 m/s

• 2.75 m/s

Multiple Choice

What is the frequency of a wave with a speed of 25 m/s and a wavelength of 3.5 m?

• 7.14 Hz

• 87.5 Hz

• 30 Hz

• 0.14 Hz

Multiple Choice

If a sound wave with a frequency of 1,500 Hz travels at 150 m/s, what is its wavelength?

• 10 m

• 225,000 m

• 0.1 m

• 1588 m

Multiple Choice

Which wave has the lowest frequency?

• 1

• 2

• 3

• All three have the same frequency.

Multiple Choice

How many wavelengths long is Wave 1?

• 1 wavelength

• 2 wavelengths

• 3 wavelengths

• 4 wavelengths