ENERGY Ability to do work
WAVE Disturbance that
Transfers energy from place to place
Medium – The material through which a wave travels
Mechanical Wave – waves that require a medium through which to travel.
Transverse Waves-waves that move the medium at right angles to the direction in which the waves travel.
Longitudinal Wave – move the particles of the medium parallel to the direction that the waves are traveling.
CREST – The Highest part of a wave
TROUGH- The lowest part of a wave
Rarefaction- The parts where the coils spread out, or rarefied
Compression-The parts where the coils are close together
Vibration – repeated back and forth up and down motion
Seismograph-Records the ground movements caused by seismic waves as they move through Earth.
Frequency-A wave is the number of complete waves that pass a given point in a certain amount of time
Hertz (Hz) – Units of measurement for frequency
Node-Destructive interference causes two waves to combine to produce an amplitude of zero.
Antinode-The crests and troughs of the standing wave.
Primary waves-longitudinal seismic waves
Secondary waves-transverse seismic waves
Reflection-When an object or wave hits a surface through which it cannot pass, it bounces back.
Angle of Reflection – Is the angle between the reflected waved and the imaginary line.
Seismic Wave – Waves produced by earthquakes
Surface Waves-combination of transverse and longitudinal waves.
Destructive Interference-When the amplitude of two waves combine with each other producing a smaller amplitude.
Constructive Interference-Whenever two waves combine to make a wave with a larger amplitude.
Diffraction-The bending of waves around the edge of a barrier is known as a diffraction.
Angle of Incidents-Between the incoming wave and the imaginary perpendicular line.
Wavelength-The distance between two corresponding parts of a wave.
Standing Wave-wave that appears to be standing still.
Tsunami-Earthquakes that occur under water can cause huge surface waves on the ocean floor.
Amplitude – The maximum distance the medium carrying the wave moves away from its rest position.
Interference-The effect that occurs when two or more waves meet.