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Mid Term Flash Cards

MCAS vocab

TermDefinition
Period The time between waves passing a fixed point.
Oscillation A repeated motion/vibration such as a pendulum
Frequency How many waves in a second. (Hz)
Wavelength The distance from a point on a wave to the equivalent point on the next wave. (m)
Wavespeed How quickly a wave is moving. (m/s)
Reflection When a wave bounces back off a surface.
Refraction When a wave changes direction as it passes into a new material.
Diffraction When a wave passes through a small gap and spreads out.
Interference When two waves overlap and either increase or cancel each other out.
Electromagnetic wave a self-propagating disturbance in electric and magnetic fields that carries energy through space at the speed of light, without needing a medium.
Mechanical wave, a self-propagating disturbance in solid, liquid or gas that transmits energy
Transverse wave, A wave which is moving in the same direction as the disturbance.
Longitudinal wave, A wave which is moving at 90 degrees to the disturbance.
Vacuum, A space with nothing in it.
Normal A line at 90 degrees to a surface.
Static Electricity, A build up of either negative or positive charge.
Electrostatic Field, A force originating from a charge that affects other charges close to it.
Magnetic Field, A force originating from an electrical current affects other magnets or can create an electrical current in a wire.
Electron, Negatively charged sub atomic particle
Proton, Positively charged sub atomic particle in the nucleus
Neutron Sub atomic particle with no charge.
Current, The movement of electrons in a wire. Measured in amps.
Series Circuit ,A circuit where all components are connected in a single loop
Parallel Circuit, A circuit where components are on multiple loops.
Voltage, The pushing force that pushes electrons around a circuit.
Resistance, The amount a material can slow electricity down in a circuit.
Ammeter, A device for measuring current
Voltmeter, A device for measuring voltage
Multimeter A device that can measure current, voltage and resistance depending on its setup.
Created by: user-1952939
 

 



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