Chapter 11 EM Waves: Question Preview (ID: 30672)

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Electromagnetic waves that can be used to view images of bones and teeth are called
a) x rays
b) UV rays
c) visible light
d) radio waves

An object that allows some light to pass through is said to be
a) translucent
b) transparent
c) opaque
d) clear

Waves with the longest wavelength and lowest frequency are called
a) radio waves
b) gamma rays
c) infrared rays
d) microwaves

As wavelength decreases across the electromagnetic spectrum, frequency ____.
a) increases
b) stays the same
c) does nothing
d) decreases

What occurs when parallel rays of light hit a rough or bumpy surface?
a) diffuse reflection
b) regular refrection
c) refraction
d) diffraction

The part of the EM spectrum that you can see is called
a) visible light
b) microwaves
c) radio waves
d) UV rays

EM waves can transfer waves with or without a
a) medium
b) destination
c) generator
d) spectrum

When light passes from air to water, it __________.
a) slows down
b) speeds up
c) stays the same
d) gets brighter

When parallel beams of light strike a concave mirror, the beams are ________.
a) reflected back at a narrower angle
b) reflected back at a broader angle
c) refract outwards
d) refract inwards

A flat sheet of glass with a silver-colored coating on one side is called a
a) mirror
b) lens
c) desk
d) EM spectrum

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