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14 questions
Categorize the types of waves below as longitudinal or transverse. (drag and drop)
Sound
Surface Waves
Vibrations on a string
light
Sound wave is a pressure oscillation that is (a) through (b)
Draw a longitudinal wave vs. a transverse wave. Can include literal examples or how we generically understand them.
Sound waves are (a) waves because their oscillations of the particles are (b) to the direction of the energy transport.
Match the following speed of sound to their respective media.
1,497 m/s | Air 0°C | ||
4,994 m/s | Helium Air 0°C | ||
340 m/s | Water 25°C | ||
965 m/s | Iron 20°C |
The human ear is a sound detector that receives (a) waves and converts them to (b) impulses.
Tiny hair slinging spiral-shaped ________ detects certain frequencies in the vibrating fluid in the ear.
Match the following sound scenarios to what would happen to the output sound.
Decrease volume | Increasing frequency | ||
Increased volume | Decreasing frequency | ||
The pitch would decrease. | Increase amplitude | ||
The pitch would increase. | Decrease amplitude |
Sound level is a convenient way to measure the intensities of loudness or sound and is measured in ____.
decibels (dB)
m/s
°C
When an ambulance moves TOWARDs you it sounds ________ pitched.
high
low
medium
How does the medium affect the speed of sound?
Sound travels faster in solids than in gases
Sound travels faster in gases than in solids
The medium does not affect the speed of sound
Sound cannot travel through solids
What is the relationship between amplitude and volume?
Directly proportional
Inversely proportional
No relationship
Only related at high frequencies
The sound that we actually hear is the vibration of molecules.
True
False
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