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Chapter 11 EM Waves
Test Description: Electromagnetic waves
Instructions: Answer all questions to get your test result.
1) Electromagnetic waves that can be used to view images of bones and teeth are called
A
radio waves
B
x rays
C
visible light
D
UV rays
2) An object that allows some light to pass through is said to be
A
clear
B
transparent
C
translucent
D
opaque
3) Waves with the longest wavelength and lowest frequency are called
A
radio waves
B
gamma rays
C
infrared rays
D
microwaves
4) As wavelength decreases across the electromagnetic spectrum, frequency ____.
A
does nothing
B
increases
C
stays the same
D
decreases
5) What occurs when parallel rays of light hit a rough or bumpy surface?
A
diffuse reflection
B
regular refrection
C
diffraction
D
refraction
6) The part of the EM spectrum that you can see is called
A
visible light
B
microwaves
C
UV rays
D
radio waves
7) EM waves can transfer waves with or without a
A
medium
B
generator
C
destination
D
spectrum
8) When light passes from air to water, it __________.
A
stays the same
B
gets brighter
C
speeds up
D
slows down
9) When parallel beams of light strike a concave mirror, the beams are ________.
A
refract inwards
B
refract outwards
C
reflected back at a broader angle
D
reflected back at a narrower angle
10) A flat sheet of glass with a silver-colored coating on one side is called a
A
EM spectrum
B
mirror
C
desk
D
lens
*select an answer for all questions
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