Electricity and Magnetism Review

resistance

voltage difference

static electricity

current

positive; negative

negative; positive

neutral; negative

neutral; positive

insulator

conductor

fuse

circuit breaker

Objects must be touching on another to exert electrical force.

Air cannot conduct electricity; it is conducted only by solid materials.

Electrical forces act at a distance.

Opposite electric charges always repel one another.

plastic plate

silver spoon

copper wire

gold necklace

using a thicker/wider wire

using a shorter wire

increasing the temperature of the wire

using silver instead of copper

1.8 amps

8.8 amps

0.022 amps

45 amps

sound and light

electricity and sound

light and magnetism

electricity and magnetism

increasing the current flowing through the wire

using less loops around the iron core

flipping the direction of the current flowing through the wire

using a larger iron core

1.98 V

0.000198 V

5050 V

100.0198 V