Magnets
When a magnet pushes away it is called.
repel
In a circuit, this is the power source
D-cell
A substance, commonly a metal like copper or aluminum, through which electricity will flow
conductor
a push or pull
force
a device used to open and close
When a magnet pushes together it is called
attract
In a complete circuit the switch
opens and closes the circuit
a material that prevents the flow of electricity
insulator
An object that sticks to iron
magnet
the wire that is wrapped around a central core repeatedly
coil
A nail stuck to a permanent magnet picked up a smaller washer. This can happen because
magnetism was induced
One pathway for electricity to flow
series circuit
basketball hoop, soup can, bottle cap
All conductors
two lines that cross at a point
intersection
a device for sending coded messages
telegraph
a steel rivet, a D-cell, and wire
parallel circuit
splits into two or more pathways before coming together at the battery
In a circuit that tests for insulators and conductors, a lightbulb is used to show
electricity is running through the circuit
the part of the bulb that gets hot and produces light
filament
an object with iron that behaves like a magnet when touching a permanent magnet
temporary magnet
A magnet attracted a paper clip with a thin piece of cardboard between it, however it would not attract when a sponge was in between. Why?
The distance was too far because the sponge was thicker than the cardboard.
True or False a light bulb will light if both wires are connected to the D-cell at the same end.
False
This could cause a metal not to be a conductor
metals covered with an insulator such as paint
a metal clip that connects wires in a circuit
Fahnstock clip
the influence of a permanent magnet's magnetic field which makes the iron act like a magnet
induced magnetism