Unit 5 Waves

Refraction occurs when a wave changes its as it passes through a different medium.

• color
• frequency
• intensity
• speed

Houses with carpet are much quieter than houses with tile or hardwood floors because of sound wave

• absorption
• diffraction
• reflection
• refraction

Which is an example of a compressional wave?

• X-ray
• gamma ray
• sound wave
• water wave

Increasing the amplitude of a sound wave will make it ____.

• louder
• have a higher pitch
• travel faster
• produce beats

Ocean waves crash on the beach at a velocity of 3.5 m/s. If the distance between the crests of each wave is 4 m, find the frequency of the waves.

• 0.88 Hz
• 1.14 Hz
• 0.0088 Hz
• 14.0 Hz

The picture to the right shows which wave behavior?

• absorption
• reflection
• diffraction
• refraction

An echo is an example of sound wave

• absorption
• reflection
• diffraction
• refraction

What is the velocity of a wave having a frequency of 25 Hz and a wavelength of 10 m?

• 250 m/s
• 2.5 m/s
• 35 m/s
• 0.4 m/s

A glass prism is able to bend light because

• light is refracted as it enters a different medium
• the prism creates destructive interference
• energy is diffracted when it encounters an obstacle
• the glass and the light’s wavelength create resonance

In 1 second, 4 crests of a wave pass a certain point. What is the wave’s frequency?

• 0.25 Hz
• 0.25 m/s
• 4 Hz
• 4 m/s