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# Waves

### Test 1 Study Guide

What is a wave? It is a disturbance that transfers energy from place to place.
What is energy? It is the ability to do work.
What is a medium? The material through which a wave travels.
What are the different types of waves? The three types of waves are longitudinal waves, transverse waves, and surface waves.
Wat are the three different types of mediums? The three mediums are solids, liquids, and gases.
what are the different parts of the wave? The crest, trough, wavelength, amplitude.
What is a crest? The highest part of the wave.
What is a trough? The lowest part of the wave.
What is amplitude? The maximum distance the particles of the medium carrying the wave move away from their rest position.
What is compression? The part where the coils of a wave are close together.
What is rarefaction? The parts of the wave where the coils are spread out.
What is reflection? When a wave hits a surface that it cannot pass through, it bounces back.
What is refraction? Bending of waves due to change of speed.
What is diffraction? The bending of waves at the edge of a barrier.
What is constructive interference? When two waves combine to make a wave with a larger amplitude.
What is destructive interference? When the amplitude of two waves combine with eacher other producing smaller amplitude.
What are the four basic properties of a wave? Amplitude, wavelength, frequency, and speed.
What is the formula for calculating the speed of the wave? Frequency X Wavelength = Speed
What is the unit for the frequency of a wave? hertz (Hz)
What is the angle of incidence? The angle between the incoming wave and the imaginary perpendicular line.
What is the angle of reflection? The angle between the reflected wave and the imaginary perpendicular line.
What is diffraction? The bending of waves
What is the wavelength? The distance between two corresponding parts of a wave.
What is amplitude? The maximum distance the particles of the medium carrying the wave move away from the resting position.
What are longitudinal waves? Waves that move the particles of the medium parallel to the direction that the waves are traveling.
What are transverse waves? Waves that move the medium at right angles to the direction in which the waves are traveling
What are surface waves? Waves that are a combination of transverse adn longitudinal waves.
What is the amplitude? The maximum distance the particles of the medium carrying the wave move away from their rest positions.
What is frequency? the number of complete waves that pass a given point in a certain amount of time.
What is speed? how far the wave travels in one unit of time, or distance divided by time.
Created by: mccarthyr