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### 18 Cards in this Set

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