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Senior High School: 11th and 12th Grade
Physics
Waves - The Use Of Waves In Communications
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Q.1
How is the speed of sound calculated?
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Distance divided by time
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Time divided by distance
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Distance multiplied by time
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Time multiplied by distance
Q.2
Which of the following statements is true?
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The speed of sound is the same for all materials
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The speed of sound is different for different materials
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The only material that affects the speed of sound is water
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Sound can only travel in a vacuum
Q.3
Which of the following types of waves do not need any matter to travel in?
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Electromagnetic waves
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Sound waves
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Water waves
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Mechanical waves
Q.4
Which of the following statements is true?
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Waves all have the same amplitude
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Waves carry energy
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Waves cannot be used to transmit signals
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Waves do not vibrate
Q.5
Which of the following waves are transverse?
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Sound waves and mechanical waves
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Water waves and sound waves
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Electromagnetic waves and sound waves
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Electromagnetic waves and water waves
Q.6
Which of the following waves are longitudinal?
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Sound waves
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Electromagnetic waves
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Water waves
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Infra-red waves
Q.7
A wave machine produces 15 waves per second. What is the frequency of the waves?
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10 Hz
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0.06 Hz
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15 Hz
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20 Hz
Q.8
If the waves above travel 10 meters in 5 seconds, what is the speed of the waves?
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1 m/s
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2 m/s
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4 m/s
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0.5 m/s
Q.9
Considering your answers to question 7 and 8, what is the wavelength of the waves produced by the wave machine?
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0.13 m
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0.25 m
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0.50 m
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0.75 m
Q.10
What is the wavelength of a wave?
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The distance from a crest of a wave to a trough of the next wave
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The distance between four crests of waves
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The distance between any point on one wave to the same point on the next wave
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The distance between four troughs of waves
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