Optics Review

Which is not on the electromagnetic spectrum?

• lights waves

• sounds waves

• radio waves

• microwaves

Which travels the fastest?

• light waves

• infrared waves

• ultraviolet waves

• all waves have the same speed

Which has the highest frequency?

• radio waves

• ultraviolet

• microwaves

• visible light

Which has the shortest wavelength?

• infrared waves

• visible light

• radio waves

• gamma rays

True or False. Most of the waves in the electromagnetic spectrum are visible.

• True

• False

How long does it take light to travel from the sun to the Earth?

• 8 seconds

• 8 minutes

• 8 years

• 1 light year

What type of wave is used in remotes and laser pointers?

• radio waves

• microwaves

• infrared waves

• x-rays

Which type of wave can we see?

• radio waves

• infrared waves

• ultraviolet waves

• visible light waves

Which types of waves are used in medical settings? (2 answers)

• microwaves

• x-rays

• gamma rays

• radio waves

What color of light can pass through a green filter?

• green

• red

• yellow

• orange