Circuits
A circuit must be open or closed in order for current to flow?
closed
Like poles of a magnet .. attract or repel?
repel
Materials that allow electric charges to flow through them easily.
Conductors
Materials that allow electricity to pass through them easily.
Conductors
This circuit has only one pathway for electric current to follow
Series circuit
Explain how a fuse helps protect against a fire that could be caused by overheated wires.
A fuse opens or breaks the circuit so electricity stops.
Opposite poles of a magnet .. attract or repel?
attract
Which uses more electricity... a refrigerator or a washing machine?
Refrigerator
Materials that do not allow electricity to pass through them easily.
Insulators
This circuit has more than one pathway for electric current to follow.
Parallel circuit
Draw and label a series circuit using 3 wires, 1 battery, and 2 bulbs.
Check answers
The force of a magnet is greatest where?
At its poles
A continuous flow of electric charges
electric current
True or false.... plastic is a conductor
False
Positive and negative units of electricity are called...
charges
Draw and label a parallel circuit using 4 wires, 1 battery, and 2 bulbs.
Check drawing
North
Electric circuit
Give an example of a conductor
copper, aluminum, gold, silver
A safety device that opens a circuit when it overheats.
Miss Titmus created a circuit with a battery and 2 bulbs. When both bulbs are connected to the circuit, they both light. When Miss Titmus removes one of the bulbs the other stays lit,
What kind of circuit did Miss Titmus create?
How do you know?
A parallel circuit because it has more than one path for electricity to flow.
The space is which the force of a magnet can act
Magnetic field
A device that changes chemical energy into electrical energy.
Electric cell
Give an example of an insulator
plastic, rubber, glass, air, and wood
A device that changes energy of motion into electrical energy
Generator