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# Science chapter 23

### Science chapter 23 test

what is oscillation that travels from one place to another. a wave
Why are Waves a traveling form of energy? because they can change motion.
You can think of a wave as what? a moving series of high points and low points.
The frequency is? a wave is the rate at which every point on the wave moves up and down.
what is the distance from any point on a wave to the same point in the next cycle of the wave. wavlength
The speed of a water wave is what how fast the wave spreads
A wave moves one wavelength in each what? cycle
What is the speed? it is the distance traveled (one wavelength) divided by the time it takes (one period).
When a wave encounters a surface, what four interactions can occur. 1. reflection, 2.refraction, 3.diffraction, or 4. absorbent.
what usually changes the direction and shape of the waves? Diffraction
What 2 types of waves are there? Transverse, longitudinal
what are waves that are in the same direction that the wave moves Longitudinal wave
What happens when waves add up to make a larger amplitude. Constructive interference
What waves add up to make a wave with smaller or zero amplitude. destructive interference
What gets us from one place to another. Linear motion
what is a device that swings back and forth. Pendulum
what is motion that repeats over and over. harmonic motion
what is one unit of harmonic motion. a cycle
what is a physical system that has repeating cycles or harmonic motion. oscillator
what is the maximum distance the oscillator moves away from this equilibrium position. amplitude
what is the gradual loss of amplitude? Damping
what is the frequency (or period) at which a system naturally oscillates? natural frequency
what happens when a periodic force that has the same frequency as the natural frequency. resonance
Created by: Hunter Ross