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2 cards from this section. Quick, good the night before a test.
What is amplitude?
Think about what happens when a string is plucked.
What is frequency measured in?
Remember the unit of measure we often hear when talking about sound.
What does amplitude measure?
Consider what amplitude means in relation to movements.
True or False: The time period is the duration of one cycle of vibration.
Think about what defines a cycle in motions.
If a sound wave has a frequency of 440 Hz, what is its time period? Calculate and explain your reasoning.
Use the relationship between frequency and time period to find your answer.
A tuning fork vibrates with a frequency of 400 Hz. If its amplitude increases, how does this affect the sound we hear?
Consider how vibrations translate into sound volume.
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