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Grade 9 Physics vocabulary Cheat Sheet (DRAFT) by

Vocabulary form both PPT

This is a draft cheat sheet. It is a work in progress and is not finished yet.

PPT #1

Ammeter
A device used to measure current
Battery
The scientific word foe two or more cell that are joined together
Cell
A flow of charge, which is measured in amperes(A)
Potential Difference
Scientific name of voltage, which is measured in volts(v). It can be measured across a component and is the difference in electrical potential energy between the two sides of the component
Voltmeter
A device used to measure potential difference
Voltage
Another name of potential differ­ence. When measured across a cell, it is the amount of energy the cell gives to each electron pushed out into the circuit
 

PPT #2

Diode
A device that allows current to flow in one direction only
Ohm
The unit of electrical resist­ance, named after Georg Ohm
Power
The rate at which energy is transf­erred
Resistance
The reduction in the flow of electrons through a piece of wire or a device
Resistor
A component that opposes the flow of electrons
Thermistor
The resistance of this device decrease as its temper­ature increases
Variable resistor
The residence of this device can be changed
Watt
The unit of power. 1 watt = 1 joule of energy transfers every second

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