Vocab
Form of energy that involves the flow or movement of electric charges
Electricity
Charges that push AWAY from each other
Repel
T or F
If one wire along the circuit is NOT connected the circuit is OPEN.
True
AN object that attracts a certain metal
A magnetic field can not be seen. But you can use tiny pieces of _________ to see the field formed by the magnetic force
Static electricity
Negative charges have continuous movement or flow through a material
Current Electricity
The current electricity will flow through the wires and the bulb will light up in a _____________
Closed circuit
Pushing or pulling force caused by a magnet
Magnetism
Count the number of positive and negative charges. Is the below picture a NEGATIVE charge or POSITIVE charge or NEUTRAL?
+++++
- - -
+ = 5
- = 3
Positive
Attract
Material that does NOT allow electricity to flow through it easily
Insulator
un broken
Area around a magnet where the force of the magnet can act
Magnetic field
Count the number of positive and negative charges. Is the below picture a NEGATIVE charge or POSITIVE charge or NEUTRAL?
- - - -
+ +
- = 4
+ = 2
Negative
Material that allows electricity to flow through it easily
Conductor
Electromagnet
Looking at page 251
What circuit is the light bulb turned on for?
Closed circuit
Object made out of _____ and ____ are NOT attracted to magnets
Wood and paper
Count the number of positive and negative charges. Is the below picture a NEGATIVE charge or POSITIVE charge or NEUTRAL?
- - - - - -
+ + + + + +
- = 6
+ = 6
Neutral
a tiny particle that makes up matter. Can be positive or negative
Atom
What causes an object to gain or lose charges?
Rubbing an object
What is used to open or close a circuit?
A switch
_________ or the ends of the magnet. Magnets magnetism is strongest at its __________
(both blanks have the same answer)
Poles
What is the ONLY electric charge that can move from object to object?
Negative Charge