Unit 4 Waves Practice Test

When you get an x-ray, you must wear a lead protective cover. Which statement BEST describes why x-rays are harmful to human bodies?

• X-rays have a longer wavelength and longer frequency than most of the light rays that exist.

• X-rays have a higher frequency than gamma rays and can cause cancer.

• X-rays have a shorter wavelength and carry more energy than visible light.

• X-rays have a shorter wavelength and carry more energy than gamma rays.

Using the electromagnetic spectrum, compare blue and red light. Blue light has a ____________________ wavelength and ____________________ frequency than red light.

• shorter, lower

• longer, higher

• shorter, higher

• longer, lower

Which part of a wave is labeled  A?

• wavelength

• trough

• crest

• amplitude

The amplitude of a wave determines which property of that wave?

• sound

• energy

• vibration

• frequency

Which property of light is causing the laser light to bend at an angle when it passes through the bottle and water in the image below?

• reflection

• diffraction

• absorption

• refraction

Which statement is true for why strawberries appear red?

• It absorbs all colors and reflects red.  

• It absorbs red and reflects all colors.

• It transmits red light and reflects all colors.

• It reflects and absorbs only red.  

This is an example of which type of wave?  

• microwave

• longitudinal

• transverse

• gamma

Transverse waves produce which type of energy?

• Light

• Sound

Longitudinal waves produce which type of energy?

• Light

• Sound

What direction do transverse waves travel?

• side to side, parallel to the direction of the wave’s energy

• up and down, perpendicular to the direction of the wave’s energy