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Sound And Light
Test Description: Review for Sound and light quiz
Instructions: Answer all questions to get your test result.
1) What is visible light?
A
form of electromagnetic energy, is used in the fluorescent lights of tanning salons.
B
It contains the only region of frequencies to which the human eye responds.
C
They have the longest wavelength and the lowest frequency.
D
They have the shortest wavelength and the highest frequency.
2) How do light waves travel?
A
Right angles
B
Straight paths
C
Curve paths
D
.
3) Which of the following is NOT a basic components of all transverse waves?
A
crest
B
peak
C
wavelength
D
trough
4) What are the units for frequency?
A
m/s/s
B
Watts
C
Newtons
D
Hertz
5) How are frequency and wavelength related?
A
inverse
B
direct
C
not related
D
.
6) Sound travels FASTEST through which of these materials?
A
Air
B
Empty Space
C
Water
D
Metal
7) What is frequency?
A
the number of vibrations per second
B
the loudness or softness of a sound
C
the back and forth movement of matter
D
how high or low a sound is
8) What is vibration?
A
the loudness or softness of a sound
B
how high or low a sound is
C
how loud a sound is
D
the back and forth movement of matter
9) Sound can be dangerous at what level?
A
10-20 Hz
B
above 120 Hz
C
20-30 Hz
D
40-50 Hz
10) Which travels faster, light or sound?
A
sound
B
light
C
.
D
.
11) Why is sound able to travel faster through a solid than a gas?
A
Gas molecules are packed tightly.
B
Sound does not travel faster through a solid than a gas.
C
Solid molecules are packed tightly.
D
Gas molecules move slowly.
12) An object that does not vibrate cannot produce
A
heat
B
electricity
C
sound
D
light
13) Which is the approximate range of human hearing?
A
500-20,000 Hz
B
20-5,000 Hz
C
20-20,000 Hz
D
5-5,000 Hz
14) The interaction of waves that meet at the same point at the same time is
A
interference
B
diffraction
C
reflection
D
refraction
15) How do the air molecules move in a sound wave?
A
in the same path as the wave
B
the air molecules themselves do not move
C
in all directions
D
at right angles to the wave
*select an answer for all questions
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