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4 cards from this section. Quick, good the night before a test.
Define sound waves.
Think about how sound is created.
What is frequency measured in?
What is the unit for vibrations?
What is the primary method by which sound is produced?
Think of what makes noise.
True or False: Sound can travel through a vacuum.
Is there air in outer space?
If a tuning fork vibrates at 440 Hz, how long would it take to complete 1000 vibrations?
Use the formula time = number of cycles/frequency.
A person hears a sound at 20 m/s when the temperature is 0°C. How will the speed of sound change if the temperature increases to 20°C?
Research how temperature influences sound speed.
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