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