Topic 8 Light and Electromagnetic Radiation

What does every type of wave transfer?

• water

• energy

• heat

• matter

The greater the ________, the more ____________ is transferred.

• wavelength, energy

• amplitude, energy

• frequency, energy

• matter, energy

What happens when light hits a shiny or smooth surface?

• it disappears

• it is refracted

• it is absorbed

• it is reflected

What is the angle of reflection equal to?

• the angle of refraction

• the angle of incidence

• the angle of absorption

• the angle of light

What is it called when light bends as it moves from one substance to another?

• absorption

• reflection

• refraction

• incidence

If two people are jumping on a trampoline and they jump at the same time with one making a crest and one making a trough, what type of wave interaction occurs?

• reflection

• refraction

• destructive interference

• constructive interference

What type of wave is a soundwave?

• latitudinal

• longitudinal

• compressed

• transverse

What can change the speed of sound through a material?

• mass

• temperature

• length

• width

What is the main difference between a mechanical wave and an electromagnetic wave?

• Electromagnetic waves transfer matter, and mechanical waves do not.

• Mechanical waves transfer energy and electromagnetic waves do not.

• Electromagnetic waves have more energy than mechanical waves .

• Mechanical waves require a medium, and electromagnetic waves do not.

When you hold a seashell up to you ear and "hear the ocean," the sound you hear is the result of resonance. Which statement best explains why resonance causes you to hear this sound?

• Vibrations in the shell start vibrations in the air around the shell.

• Vibrations in the air around the shell pass through the shell and are heard as the "ocean" .

• Vibrations in the area around the shell start the shell vibrating at one of its natural frequencies.

• Vibrations in the air refract and enter the shell.