Electric Charge and Forces
What are two types of electric charge?
Positive and Negative
What materials are great conductors?
What is a repulsive force?
Same charges; push away
Draw a negatively charged object.
More negatives than positives.
What is the purpose of the rubber material around a wire? What do we call these?
To prevent us from getting shocked; Insulator.
What is resistance?
How easily electric charge flow through a material.
What is the difference between attractive and repulsive forces?
Attractive forces have opposite charges and objects pull together. Repulsive forces have the same charge and objects push away from each other.
Which has MORE resistance- a long, thin wire or a thick, short wire?
A long, thin wire.
Insulators prevent flow; Conductors allow flow
Positive point away; negative points towards.
If you have one battery and two light bulbs, how bright will the light bulb be?
Dimly lit.
What is an Electric Charge?
a property of matter that causes electrical phenomena
The electric force increases when the charges on an object _______.
The force of an object decreases when the distance between the objects _______.
Increases; Increases
What causes a space heater to heat up?
The number of coils in the wire; resistance.
What is an electric current?
The flow of particles with electric charge.