EM Waves and the EM Spectrum

Which portion of the electromagnetic spectrum includes the range of light that can be detected by the human eye? 

• ultraviolet light
• visible light
• infrared light
• x-rays

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Radio waves have a lower frequency than x-rays. What can you conclude from this information?

• Radio waves are more energetic than x-rays

• X-rays carry more energy than radio waves

• These waves carry the same amount of energy

• Only x-rays are radiation.

Which type of light has the lowest energy of this group?

• Radio
• Microwave
• Infrared
• Ultraviolet

Tags

NGSS.MS-PS4-1

Albert Einstein got the credit for discovering a particle that is both matter and a wave. It is the way that EM radiation can be transmitted through empty space. What is the name of this particle?

• Light

• Photon

• Molecule

• Atom

Which frequency of light travels the fastest?

• Gamma

• X-Ray

• Microwave

• All of these travel at the same speed- the speed of light.

What is a difference between EM Waves and mechanical waves (like ocean waves?)

• EM Waves are transverse (have crests and troughs)

• EM Waves transmit energy from one place to another

• EM Waves do not require a medium and can transmit energy through space.

• EM Waves can have difference wavelengths

What is the source for most of the EM radiation on Earth?

Name one use for radio waves.