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- 1. Multiple Choice
1) A sound wave is an example of a(n) ____ wave.
transverse
longitudinal
crest-and-trough
electromagnetic
- 2. Multiple Choice
The human perception of pitch depends on a sound’s
velocity
wavelength
frequency
amplitude
- 3. Multiple Choice
When you hear the sound from a vehicle that is moving toward you, the pitch is higher than it would be if the vehicle were stationary. The pitch sounds higher because the
Sound waves arrive more frequently
Sound waves from the approaching vehicle travels faster
Wavelength of the sound waves become greater
Amplitude of the sound waves increases
- 4. Multiple Choice
Suppose you are on a moving bus as it passes a stationary car in which a stereo is playing music. As the bus goes past the car, you will hear the pitch of the music
Become higher
become lower
remain constant
become lower, then higher
- 5. Multiple Choice
The loudness of sound depends on both the distance from the source and the ____of the sound source.
frequency
energy
pitch
wavelength
- 6. Fill in the Blank
The highest frequency a human can hear is ______ Hz
- 7. Multiple Choice
Resonance occurs when something causes an object to vibrate at
a large amplitude
a low pitch
any frequency
its natural frequency
- 8. Multiple Choice
When a key fob is placed next to a jug of water, the range of the unlock feature gets larger because of
forced vibration
compressions
resonance
plane waves
- 9. Multiple Choice
When a string vibrates at its fundamental frequency it has how many nodes?
0
1
2
3
- 10. Multiple Choice
Two flute players play notes, one with a frequency of 523 Hz, the other at 527 Hz. The thrumming sound that occurs is called
natural frequency
twang
beats
overtones
- 11. Multiple Choice
The system of using sound waves and their echoes to detect objects that is done by a submarine is called
echolocation
radar
sonar
beats
- 12. Multiple Choice
Which of the following is not a part of the electromagnetic spectrum?
light waves
radio waves
microwaves
sound waves
- 13. Multiple Choice
All of the following statements about electromagnetic waves are true except which one?
Electromagnetic waves are composed of vibrating electric and magnetic fields
Electromagnetic waves are transverse waves
Electromagnetic waves move in a direction that is perpendicular to their propagation
Electromagnetic waves cannot travel through a vacuum
- 14. Multiple Choice
According to the law of reflection, the angle of incidence _____ the angle of reflection
less than
equal to
greater than
always twice
- 15. Multiple Choice
What distinguishes a real image from a virtual image?
Real images are inverted, while virtual images are upright
Real images appear in front of a mirror, while virtual images appear inside the mirror
Real images can be lighter or smaller than the object, whereas virtual images are always the same size as the original object.
Real images are possible with any type of mirror, while virtual images can only be made with flat mirrors.
- 16. Multiple Choice
The primary colors of light are
red, yellow, blue
red, green, blue
red, purple, green
red, orange, yellow
- 17. Multiple Choice
In light yellow is made by combining
orange and red
red and blue
blue and green
purple and blue
- 18. Multiple Choice
When light moves from a material in which its speed is higher into a material in which its speed is lower, the light appears
dark
blurry
bent
diffuse
- 19. Multiple Choice
The cells on the retina that allow us to see differences in light intensity are known as
rods
cones
spheres
cylinder
- 20. Multiple Choice
Humans have __ different kinds of cone cells on their retina.
1
2
3
4
- 21. Multiple Choice
When the doppler effect becomes extreme and sound waves begin to overlap one another a __ can develop.
sonar
shock wave
beat
explosion
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