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18 Cards in this Set
- Front
- Back
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How an object vibrates is its
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NATURAL FREQUENCY
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How can you change the natural frequency?
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CHANGE TENSION, LENGTH, WEIGHT, etc.
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The oscillation force of a jump rope is
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THE PERSON SWINGING THE ROPE
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The oscillator response of a jump rope is
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THE ROPE MOVING UP AND DOWN
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A wave trapped in one spot is a
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STANDING WAVE
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Frequencies that are multiples of the fundamental are
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HARMONICS
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The natural frequency of the string is called the
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FUNDAMENTAL (1st HARMONIC)
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The shape of a wavelength on a vibrating string is a(n)
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S SHAPE (or FIGURE 8)
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How many wavelengths will be seen with the fundamental?
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0.5
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On a vibrating string, the narrow points where the string does not move are the
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NODES
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On a vibrating string, the wide points where amplitude is the greatest are the
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ANTINODES
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For the 3rd harmonic, you will see __ antinodes.
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3
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For the 3rd harmonic, you will see __ nodes.
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4
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When two or more waves meet at the same place at the same time __ occurs.
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INTERFERENCE
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If two wave pulses are crests they will __ when they meet.
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ADD TOGETHER (MAKE A LARGER CREST WAVE PULSE)
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If a crest wave pulse meets a trough wave pulse they will __ when the meet.
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CANCEL OUT (MAKE A SMALLER OR NO WAVE PULSE)
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If wave pulses add together when they meet, this is called __ interference.
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CONSTRUCTIVE
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If wave pulses appear to cancel one another out when they meet, this is called __ interference.
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DESTRUCTIVE
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