Unit 4 Review

Which of the following is not an example of a mechanical wave?

• Light wave

• Sound wave

• Water wave

• Seismic wave

Why is a light wave not considered a mechanical wave?

• A light wave is visible to humans.

• A light wave moves faster than most waves.

• A light wave does not have a wavelength.

• A light wave travels through the vacuum of space.

Gamma Rays are

• High energy

• Low energy

• Medium energy

• Just right

Based on your observations of the prism, select the true statements.

• When light travels through a prism, the light is separated by wavelength.

• Humans see the different wavelengths of visible light as different colors.

• The prism is being used to combine different colors of light.

• The light bends when it enters the prism and again when it leaves the prism.

Mechanical Waves

• consist of Transverse, Surface and Electromagnetic.

• do not require a medium to pass through.

• require a medium to pass through.

Sound waves that bounce off a solid surface are called

• are absorbed and lose the majority of energy.

• do not require a medium to pass through.

• reflected waves.

The distance between the highest crest and the resting position of a wave marks the

• frequency.

• loudness.

• pitch.

• amplitude.

The distance a wave travels before it start to repeat is the

• frequency.

• wavelength.

• pitch.

• amplitude.

The number of times a wave repeats in a given amount of time is the

• frequency.

• wavelength.

• pitch.

• amplitude.

What is the source of a sound wave?

• Electricity

• Vibration

• Light waves

• Tiny nuclear explosions