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Frequency
Test Description: Its my first test
Instructions: Answer all questions to get your test result.
1) Which of the following sound waves has the most energy?
A
393Hz
B
500Hz
C
599Hz
D
600Hz
2) How can an object be moved by just sound waves?
A
it matches its resonant frequency
B
it alerts the sensor under it
C
It is moved by water beneath it
D
it has a new piece of matter
3) If a student goes outside and gets a headache from starring at the leaf he was burning, what could that be related to in terms of light energy ?
A
The light was radiating energy from the sun
B
The diffraction of the sun's rays caused it to move
C
The light was refracting from the leaf's surface.
4) if a person looks through a prism and finds the suns rays shining on a building what would be the colors of light?
A
red, green, blue and white
B
Purple , blue , red and orange
C
Red, orange, yellow, green blue indigo and violet
5) How do track officials find the winner in a photo finish race?
A
They use a laser beam and find the one to break the beam.
B
They go by the person with the sop watch at the finish line
C
They take a picture of all who race
6) A laser beam with a frequency of 638 Hz will
A
be strong enough to shine down the hall
B
will not be reflected by a mirror
C
will not be strong enough to shine down the hall
7) Which part of a longitudinal wave allows us to find the frequency?
A
Count the wavelengths that pass by
B
Count the number of compression or rarefactions
C
count the troughs in the wave
8) fdgdfhgb
A
fhdbsdfgb
9) dhbfgdfjigdfj
A
jdfigbijdfng
10) fbdifgbhidfg
A
fhgbidfgijdf
*select an answer for all questions
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