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Worksheets8.5 Waves and Light Review
Total questions: 20
Worksheet time: 7mins
Name
Class
Date
1.
You could use this to look at your own face zoomed in
a)
concave mirror
b)
concave lens
c)
convex mirror
d)
convex lens
2.
An echo is caused by
a)
Sound refracted around objects
b)
sound in a vacuum
c)
sound reflected back
d)
sound absorbed by objects
3.
Which is true of sound waves?
a)
sound needs matter to transfer energy
b)
sound needs a vacuum to transfer energy
c)
soundwaves have crests and troughs
d)
sound waves are transverse waves
4.
The number of waves that pass a given point in a certain amount of time is
a)
frequency
b)
wavelength
c)
amplitude
d)
speed
5.
half the vertical distance between a wave's crest and trough is called
a)
amplitude
b)
frequency
c)
wavelength
d)
speed
6.
A straw half in a glass of water appears broken because
a)
light waves bend when traveling from one material to another
b)
light bounces off the straw
c)
light is undergoing destructive interference
d)
light is absorbed by the water in the glass
7.
The top of a wave is called its
a)
crest
b)
trough
c)
wavelength
d)
amplitude
8.
Sound travels the fastest through
a)
solids
b)
liquids
c)
gasses
d)
a vacuum
9.
Which EM wave has the highest frequency?
a)
gamma rays
b)
visible light
c)
infrared rays
d)
microwaves
10.
A red apple looks red because
a)
it reflects red light and absorbs other wavelengths
b)
it absorbs red light
c)
it reflects all light but red
d)
it is just a ginger at heart
11.
Which pair of terms describes the image above?
a)
Constructive and destructive interference
b)
mechanical and elecromagnetic waves
c)
moving and standing waves
d)
sound and light
12.
Why do longer strings make lower sounds?
a)
long strings vibrate slower
b)
long strings have shorter wavelengths
c)
long strings vibrate faster
d)
long strings have a higher amplitude
13.
Why is it hard to read in a mirror?
a)
the words are flipped left to right
b)
the words are flipped upside down
c)
the words will not be clear
d)
you can't line up a mirror to see words
14.
Which two of these transmit sound best?
a)
water
b)
metal
c)
air
d)
vacuum
15.
Two waves in water are moving towards eachother. What best describes what will happen?
a)
they will meet, making the wave temporarily higher, then keep going in their own direction
b)
they will bounce off eachother
c)
they will cancel eachother out, making the water flat after they hit
d)
they combine and both move in the direction of the more powerful wave
16.
What happens when an object encounters waves of its natural frequency?
a)
its waves constructively interfere, making it shake more violently
b)
its waves destructively interfere, making it shake more violently
c)
its waves destructively interfere, making it shake less violently
d)
its waves constructively interfere, making it shake less violently
17.
Which of the following would increase energy? (choose two)
a)
increasing frequency
b)
decreasing amplitude
c)
increasing wavelength
d)
increasing amplitude
18.
You can use this to see behind you at a wide angle
a)
convex mirror
b)
concave mirror
c)
convex lens
d)
concave lens
19.
This color absorbs all wavelengths of light
a)
black
b)
white
c)
ultraviolet
d)
infrared
20.
Which of the following is true of sound? (more than one answer)
a)
Sound requires matter to transfer energy
b)
Sound requires a vacuum to transfer energy
c)
Sound moves in waves of compression and rarefaction
d)
Sound moves in waves and crests
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