Wave Reflection, Absorption, and Transmittance

All waves have which three properties?

• Frequency, amplitude, wavelength

• Speed, mass, color

• Volume, density, temperature

• Pressure, energy, weight

Tags

NGSS.MS-PS4-1

What makes sound waves different from light waves?

• Sound waves require a medium to travel, while light waves do not.

• Sound waves travel faster than light waves.

• Sound waves are electromagnetic, while light waves are mechanical.

• Sound waves can travel through a vacuum, while light waves cannot.

A wave is reflected when:

• it bounces back after hitting a surface.

• it passes through a surface without changing direction.

• it is absorbed by the surface it hits.

• it increases in speed after hitting a surface.

Tags

NGSS.MS-PS4-2

When the energy of a wave is absorbed, what happens to the wave?

• The wave disappears or is diminished.

• The wave increases in amplitude.

• The wave travels faster.

• The wave reflects back.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

5. An example of a sound wave being transmitted is:

• A person speaking and another person hearing the sound.

• A person looking at a picture.

• A person feeling the heat from the sun.

• A person smelling a flower.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

The difference between high amplitude and low amplitude sound waves is:

• High amplitude sound waves are louder than low amplitude sound waves.

• Low amplitude sound waves are louder than high amplitude sound waves.

• High amplitude sound waves have a lower frequency than low amplitude sound waves.

• Low amplitude sound waves travel faster than high amplitude sound waves.

Tags

NGSS.MS-PS4-1

The green color on a leaf is seen because:

• the leaf reflects green light.

• the leaf absorbs green light.

• the leaf contains red pigment.

• the leaf reflects blue light.

The frequency of a wave is measured in which unit?

• Hertz (Hz)

• Joules (J)

• Meters (m)

• Seconds (s)

Tags

NGSS.HS-PS4-1

The two properties of a light wave that make color are:

• wavelength and frequency

• amplitude and speed

• intensity and polarization

• reflection and refraction

The relationship between the pitch and frequency of a sound wave is:

• Pitch increases as frequency increases.

• Pitch decreases as frequency increases.

• Pitch and frequency are unrelated.

• Pitch is always lower than frequency.

Tags

NGSS.HS-PS4-1