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- 1. Multiple Choice
Which row correctly describes light waves?
A
B
C
D
- 2. Multiple Choice
The diagram shows part of a diffracted wave pattern. Changes are made to the wavelength and to the gap size to produce a semicircular diffracted wave pattern.
Which row produces the required semicircular diffracted wave pattern?
gap in barrier: larger; wavelength: same
gap in barrier: larger; wavelength: smaller
gap in barrier: same; wavelength: larger
gap in barrier: same; wavelength: smaller
- 3. Multiple Choice
The diagram shows white light passing through a prism. Which description of what happens as the light passes into the prism is correct?
The speed of the red light is less than the speed of the violet light and the red light is the least refracted.
The speed of the red light is greater than the speed of the violet light and the red light is the least refracted.
The speed of the violet light is less than the speed of the red light and the violet light is the least refracted.
The speed of the violet light is greater than the speed of the red light and the violet light is the least refracted.
- 4. Multiple Choice
Which row gives possible values for the speed of sound?
A
B
C
D
- 5. Multiple Choice
A police car with its siren sounding is stationary in heavy traffic. A pedestrian notices that, although the loudness of the sound produced does not change, the pitch varies.
Which row describes the amplitude and the frequency of the sound?
A
B
C
D
- 6. Multiple Choice
Which term is the number of crests of a wave passing a point per second?
amplitude
frequency
speed
wavelength
- 7. Multiple Choice
White light is dispersed by a prism. Compared with blue light, the red light is
slowed down less and refracted less.
slowed down less and refracted more.
slowed down more and refracted less.
slowed down more and refracted more.
- 8. Multiple Choice
What is the approximate value for
102
104
106
108
- 9. Multiple Choice
What are the lowest frequency and the highest frequency of the sound that a human being with
normal hearing can hear?
A
B
C
D
- 10. Multiple Choice
Ultrasound has a number of uses in engineering and medicine. What is ultrasound not used for?
cleaning
pre-natal scanning
quality control
sterilizing medical equipment
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