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Savvas 7th Grade Waves, Sound, and Light Modified

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Last updated almost 3 years ago
22 questions
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Question 1
1.

Question 2
2.

Question 3
3.

Question 4
4.

Question 5
5.

Question 6
6.

Question 7
7.
In a longitudinal wave moving along a spring, areas where the coils are farthest apart are
called _______.
Question 8
8.
The highest point of a transverse wave is called _______ .
Question 9
9.
The more _______ a mechanical wave has, the greater its amplitude.
Question 10
10.
In the phenomenon known as the _______ effect, electric current will flow when light shines on certain substances.
Question 11
11.
The _______ of a wave is the number of waves that pass a given point in a certain amount of time.
Question 12
12.
The _______ model of light describes the behavior of light when it acts as a stream of photons.
Question 13
13.

Question 14
14.

Question 15
15.

Question 16
16.

Question 17
17.

Question 18
18.

Question 19
19.

What kind of wave is being generated?

Question 20
20.

Look at diagram above. In what direction does the medium move relative to the direction of the wave? Explain.

Question 21
21.

Look at diagram above. What does the person transfer to the rope by pulling it up and down at point A?

Question 22
22.

Compare how polarized light is different from non-polarized light.

The maximum distance that the particles of a medium move from the rest position is the
amplitude of the wave
wave length of the wave
frequency of the wave
The distance between two corresponding parts of a wave is the wave’s
amplitude
wavelength
speed
The speed of a wave is its wavelength multiplied by its
vibration
frequency
reflection
Electromagnetic waves can transfer energy without a(n)
medium
electric field
change in either a magnetic or an electric field
Why do you see lightning from a distant storm before you hear thunder ?
Your eyes react faster than your ears.
Light travels faster than sound.
Sound travels faster than light.
Mechanical waves are created when a source of energy causes a medium to
move
compress
expand
vibrate
Energy transferred from electromagnetic waves through matter and space is called electromagnetic radiation.
True
False
The three types of mechanical waves are transverse waves, latitudinal waves, and surface waves.
True
False
Frequency is measured in units called hertz.
True
False
Dividing the distance a wave travels by the time it takes to travel that distance gives you the wave's speed
True
False
The height of a wave's trough depends on its amplitude.
True
False
Waves that require a medium through which to travel are called electromagnetic waves.
True
False