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Waves and energy

Vocab words for waves unit

TermDefinition
transverse waves A waves that has vibrations or disturbances that are perpendicular to the direction the wave is travelling.
longitudinal waves A wave that vibrates or has disturbances in the same direction that the wave is travelling.
energy The capacity for doing work. It may exist in potential, kinetic, thermal, electrical, chemical, nuclear,
work A measure of energy transfer that occurs when an object is moved over a distance
energy transferring The passing of the same form of energy to another object.
energy transformation The changing of forms of energy.
frequency The number of waves past a point per second.
wavlength Length of a wave from peak to peak or trough to trough.
amplitude Size of a wave in height from the mid line.
reflection The bouncing off of light from smooth, shiny surfaces. The law of reflection: angle of incidence = angle of reflection.
refraction The bending of light as it passes through materials more dense than air.
concave lens Lenses that are 'caved' in on each side.
convex lens Lenses that are bulging on the sides - like a surfboard shape.
convection The way in which heat energy moves through gases and liquids. Often in the form of a current.
conduction The way in which heat energy moves through solids.
voltage Measured in volts. This describes the amount of energy 'pushing' electrons around a circuit.
current Measured in amps. This describes the flow of electricity through a circuit.
resistance Measured in ohms. This represents how much a device impedes the flow of current in a circuit
radiation movement of heat energy through a vacuum or air.
parallel circuit A circuit arranged with each device on its own loop to the battery.
series circuit A circuit arranged so that all devices are on the same loop to the battery.
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