Waves Light and EM Radiation

Which of the following describes visible light?

• Includes all colors of the rainbow.

• Has very long wavelengths.

• Has very low frequency.

• We cannot see it.

A material that does not let light through it is called...

• Transparent

• Translucent

• Opaque

Tags

NGSS.4-PS4-2

Which of the following describes what happens to light/ or presents an example of when it is reflected off of a smooth surface?

• The reflected ray bounces off the surface at the same angle as the incident ray.

• The light is scattered every where.

• You can see yourself in a mirror if you are standing near it.

• Explains why we are able to see a piece of paper from many angles, even when we are not close to it.

Tags

NGSS.MS-PS4-2

Which of the following describes what happens to light/ or presents an example of when it is reflected off of a rough surface?

• The reflected ray bounces off the surface at the same angle as the incident ray.

• The light is scattered every where.

• You can see yourself in a mirror if you are standing near it.

• Explains why we are able to see a piece of paper from many angles, even when we are not close to it.

Tags

NGSS.MS-PS4-2

The lowest point on a wavelength is a(n) ____________.

• value

• trough

• crest

• medium

What is wavelength?

• The speed at which electromagnetic waves travel

• The distance between two consecutive peaks of a wave

• The number of waves produced in a given amount of time

• The energy transmitted by electromagnetic waves

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Which color of visible light has the longest wavelength?

• red

• orange

• yellow

• green

The lowest point on a wave is a(n) ____________.

• value

• trough

• crest

• medium

Which of the following colors of visible light has the lowest frequency?

• yellow

• green

• blue

• indigo

A student has a remote control for a television. The student points the remote at the television and presses a button on the remote labeled Volume. A small red light flashes on the front of the remote. The student observes that the sound from the television becomes lower. Which statement best describes how the remote control communicates with the television to change the volume of the sound?

• The remote control sends microwaves toward the television that are absorbed by the front of the television.

• The remote control sends low-energy infrared radiation to a light detector on the front of the television.

• The remote control sends radio waves in many directions, which bounce off the walls of the room toward the front of the television.

• The remote control sends sound waves in many directions, which bounce off the walls of the room toward a vibration detector on the front of the television.