Physics Exam Review

Front 1

Conductors

Back 1

Materials that allow the movement of electrons

Front 2

Insulators

Back 2

Materials that inhibit or prevent the movement of electrons.

Front 3

Meaning of grounded

Back 3

When a charged object touches a large neutral object such as Earth, the charged object becomes grounded and loses its net charge

Front 4

The law of attraction and repulsion

Back 4

Tha law states Like charges repel each other; unlike charges attract.

Front 5

Ammeter

Back 5

Instrument used to measure current

Front 6

Voltmeter

Back 6

Instrument used to measure potential difference

Front 7

Ohmmeter

Back 7

an instrument for measuring electrical resistance.

Front 8

3 of the low of electrostatic

Back 8

For two materials, look at their positions in the electrostatic series. • The material closer to the top of the list will lose electrons and become positively charged. • The material near the bottom of the list will gain electrons and become negatively charged.

Front 9

Static cling

Back 9

Static cling is the tendency for light objects to stick (cling) to other objects owing to staticelectricity.

Front 10

Series circuit

Back 10

 electrons only have one path to follow  connected end to end; a simple

loop  electric current/amperes is the same in all parts of the circuit  voltage at each load will add up to the total voltage  each load uses some of the energy the electrons have  every time a load is added the

others will dim (each load gets less energy)  main switch stops current through the whole circuit eg. some Christmas lights

Front 11

Parallel circuit

Back 11

 electrons have more than one path they can follow  electric current through each parallel load will add up to the total current  the voltage through each parallel load will be the same  loads added in parallel will be the same brightness as the others  electrons only go through one load and only give up their energy once eg. bathroom light fixtures, most wall outlets and lights

Front 12

Parts of the electric circuit

Back 12

-cell

-wire

-switch

-lamp

Front 13

Static electricity vs. Current electricity

Back 13

The most significant difference between the static and currentelectricity is that in static electricity the charges are at rest and they are accumulating on the surface of theinsulator. Whereas in current electricity the electrons are moving inside the conductor.