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WAVES
Test Description: WAVES
Instructions: Answer all questions to get your test result.
1) A wave transfers
A
air
B
energy
C
water
D
particles
2) The distance between 2 crests is a wave's
A
wavelength
B
speed
C
frequency
D
amplitude
3) Which of the following is true about standing waves
A
constructive interference produces points with zero amplitude
B
the amplitude of anitnodes is greater than nodes
C
the nodes are unevenly spaced along the wave
D
nodes are points of maximum energy on the wave
4) What is the angle of incidence if a reflected wave bounces off a mirror at and angle of 65 degrees.
A
65 degrees
B
90 degrees
C
115 degrees
D
25 degrees
5) The speed of a wave in a spring is 10 m/s. if the wavelength is 2 m, what is the frequency?
A
8 Hz
B
20 Hz
C
5 Hz
D
4 Hz
6) When a wave enters a new medium at 60 degrees and changes speed, the wave
A
bends because both sides change speed at the same time.
B
bends because one side changes speed before the other side.
C
does not bend because one side changes speed before the other side.
D
does not bend because the angle is less the 90 degrees.
7) What is the speed of a wave that has a frequency of 2 Hz and a wavelength of 3 m.
A
5 m/s
B
6 m/s
C
1.5 m/s
D
Answer not provided
8) Whenever a wave enters a new medium, the _______ is likely to change.
A
correct answer not shown
B
speed
C
amplitude
D
color
9) A wave with an amplitude of 5 cm combine with a wave of -5 cm. What would happen?
A
the waves would combine to form a wave with a smaller amplitude than both
B
The waves would cancel out. if in water, it would look at if they disappeared.
C
The waves would combine to form a wave with great amplitude than both.
D
no correct answer shown
10) A wave with an amplitude of 2 cm combines with another wave with an amplitude of 1 cm. The resulting combined wave would have an amplitude of ________.
A
1cm
B
3cm
C
correct answer not shown
D
2cm
11) Click True or False. Destructive interference is used in noise-canceling headphones to block out distracting noises in a listener's surroundings.
A
FALSE
B
TRUE
12) A pencil looks bent when placed in a beaker of water. This is an example of _________________.
A
interference
B
reflection
C
refraction
D
diffraction
13) Shining a flash light into a fish tank and seeing that the angle of the light once it hits the water changes is an example of ______________.
A
refraction
B
reflection
C
diffraction
D
interference
14) CLICK TRUE OR FALSE. Sound waves are longitudinal waves and can travel through solid, liquid, and gas.
A
TRUE
B
FALSE
15) The material through which a wave travels is called a _______.
A
Gas
B
Solid
C
Medium
D
trough
16) Waves the require a medium to travel are called ___________________.
A
Big waves
B
Small waves
C
mechanical Waves
D
Electromagnetic waves
17) The high point on a transverse wave is called a __________, and the low point is called a ______________.
A
trough, crest
B
amplitude, frequency
C
frequency, amplitude
D
crest, trough
18) CLICK TRUE OR FALSE. A wave causes vibrations in a medium.
A
FALSE
B
TRUE
19) A _________wave vibrate the particles of a medium perpendicular to its direction, while a ____________ wave vibrates the particles parallel to its direction.
A
large, small
B
small, large
C
transverse, longitudinal
D
longitudinal, transverse
20) Transverse and longitudinal waves both have
A
rarefactions
B
compressions
C
wavelengths
D
crests
*select an answer for all questions
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