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wave vocabulary
definitions from Chap. 23
Question | Answer |
---|---|
A type of motion that repeats in cycles | harmonic motion |
The amount a cycle moves away from equilibrium | amplitude |
A device that swings back and forth due to gravity | pendulum |
a unit of motion that repeats | cycle |
a physical system that has repeating cyles | oscillator |
the time it takes for each complete cycle | period |
a type of motion that goes from one place to another without repeating | linear motion |
How often something repeats, expressed in hertz | frequency |
The unit of frequency | hertz hertz |
When periodic force is applied at the natural frequency | resonance |
he frequency at which a system oscilloates when disturbed | natural frequency |
The lowest natural frequency of an oscillator | fundamental |
A travelling oscillation that has properties of frequency,wavelength and amplitude | wave |
The distance from any point on a wave to the same point on the next wave | wavelength |
The leading edge of a wave | wave front |
Moving waves that have crests in parallel strait lines | plane waves |
Moving waves that form circles around a single point | circular wave |
The process of waves bouncing off an object | reflection |
The process of waves bending around an object or passing through an opening | diffraction |
What happens when the wave gets smaller and smaller as it passes through a material | absorption |
A wave whose oscillations are not in the directions it is moving | transverse wave |
A wave whose oscillations are in the direction the wave is moving like sound waves | longitudnal wave |