Chapter 7: Light - Section 1 – PROPERTIES OF LIGHT

What are the seven kinds of waves of the electromagnetic spectrum?

• Radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, gamma rays

• Sound waves, water waves, seismic waves, light waves, radio waves, microwaves, gamma rays

• Radio waves, sound waves, infrared, visible light, ultraviolet, X-rays, gamma rays

• Microwaves, infrared, visible light, ultraviolet, X-rays, gamma rays, seismic waves

Which wavelengths can humans NOT see?

• Visible light

• Infrared

• Ultraviolet

• Both Infrared and Ultraviolet

How are light waves different from other waves?

• Light waves are electromagnetic and do not require a medium.

• Light waves are mechanical and require a medium.

• Light waves are sound waves and travel through air.

• Light waves are gravitational and affect tides.

1. _________ can travel faster than the speed of light. (Options: star, nothing, light-year, vacuum, minutes)

• nothing

• star

• light-year

• vacuum

When light travels through a _________, it travels at about 300,000 km/s.

• vacuum

• star

• light-year

• minutes

Match the following terms with their definitions.

• The distance light travels in a year.

• star

• A celestial body that produces light and heat.

• minutes

• A unit of time equal to 60 seconds.

• vacuum

• A space devoid of matter.

• light-year

It takes 8 _________ for the light of the sun to travel to the earth.

• minutes

• star

• light-year

• vacuum

The nearest _________, other than the sun, is over 4 light-years away from earth. (Options: star, nothing, light-year, vacuum, minutes)

• star

• nothing

• light-year

• vacuum

• minutes

The electromagnetic spectrum includes waves at all possible (a)   , frequencies, and wavelengths.

• amplitudes
• ultraviolet
• infrared
• visible

Humans see different _________ of light as different colors.

• ultraviolet

• infrared

• amplitudes

• wavelengths

• visible

Tags

CCSS.RI.3.7

CCSS.RL.2.7

CCSS.RL.3.7

CCSS.RI.2.7

CCSS.RI.4.7