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Waves and energy
Vocab words for waves unit
Term | Definition |
---|---|
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. |