Properties of Light and Sound Waves

Visible light is that part of the electromagnetic spectrum that you can ________.

• see

• hear

• touch

• smell

What is the speed of light in meters per second?

• 32 m/s

• 182,000 mph

• 762 m/s

• 300,000,000 m/s

Light waves reflect off a surface by:

• bouncing back at the same angle as they hit the surface

• being absorbed completely by the surface

• passing through the surface without any change

• scattering in all directions

Tags

NGSS.MS-PS4-2

What phenomenon occurs when sound waves reflect off an object?

• Echo
• Diffraction
• Absorption
• Reverberation

Tags

NGSS.MS-PS4-2

An apple appears red because:

• it reflects all colors except red.

• it absorbs only red color.

• it reflects only red color.

When light passes through matter, it travels through some materials more easily than others. What is this process called?

• Refraction

• Reflection

• Transmitted

• Absorption

Tags

NGSS.MS-PS4-2

Light changes direction slightly when it passes from one material to another. What is this phenomenon called?

• Refraction

• Reflection

• Diffraction

• Absorption

Tags

NGSS.MS-PS4-2

What is required for sound to travel?

• A medium

• Vacuum

• Light

• Electricity

Tags

NGSS.MS-PS4-2

Sound travels faster in which medium?

• Solids

• Liquids

• Gases

• Vacuum

How does the speed of sound change in warmer mediums?

• It increases

• It decreases

• It remains the same

• It fluctuates unpredictably

Tags

NGSS.MS-PS1-4

NGSS.MS-PS4-1