Conductors/Insulators
What is a conductor?
A material that allows heat and electricity to flow through it.
What is an open circuit?
a broken path that electricity cannot flow through
What 2 types of energy does a light bulb transform electrical energy into?
radiant and thermal
What is 1 way electromagnets are used?
To pick up large pieces of metal.
What is an insulator?
A material that does not allow heat or electricity to flow through it.
What is a closed circuit?
A complete path that electricity can flow through
Name something in your home that changes electrical energy into radiant energy?
lamp, microwave, flashlight
What 3 things do you need to create an electromagnet?
battery, wire, nail
What are most conductors made of?
Metal
Which kind of circuit would turn a light on?
closed circuit
Name something in your home that changes electrical energy into thermal energy.
toaster, oven, iron
In an electromagnet, what attracts the paper clips to the nail?
a) gravity
b) Heat energy
c) magnetic force
magnetic force
Name an example of an insulator that protects you.
wooden handle, rubber glove, rubber coating on wires
What does a switch do in a circuit?
open and close the circuit
Name something in your home that changes electrical energy into mechanical energy.
fan, microwave, hair dryer
What does an electromagnet produce?
a) light energy
b) magnetic force
c) sound energy
magnetic force
Which of these are conductors?
copper coin
rubber tire
gold ring
plastic tube
copper coin
gold ring
What happens if you put an insulator in the middle of a circuit?
The electricity stops flowing and the light won't work.
create it or destroy it
What causes the nail to become a magnet?
electrical currents