Electricity
What is electricity?
a form of Energy that involves the flow of electrical charges
to pull toward
What do you need to make a circuit?
path and power source
What is a magnet?
an object that attracts certain metals
What is something that uses electromagnets?
(fire alarms, microwave, ovens, hair dryers, computers, doorbell bottoms, maglev trains)
What are the two types of electrical charges?
negative charges (-)and positive charges (+)
What is "repel"?
to push away from
An open circuit (does/ does not) let electrical charges flow through.
does not
What's an example of a metal that a magnet can attract?
(iron, steel, nickel, etc.)
What materials do you need to make an electromagnet?
path/wire, power source, metal core
When negative charges and positive charges are the same.
neutral
Does "+ +" and "- -" attract or repel?
repel
Which lets electricity flow through easily, like metals, conductor or insulator?
conductor
What is an example of a use of a magnet?
(picking things up, keep the refrigerator door closed, keeping metal from cutting a cow's stomach, used in machines to see the inside of the body-MRI)
What do we need to make a generator?
coil of wire and a magnet
All matter is made up of...
small particles
Do opposite charges attract or repel?
attract
What is a material like rubber, wood and glass? An insulator or conductor?
Insulator
Where is a magnet's magnetism the strongest?
at the poles
What is an electromagnet?
a temporary magnet that happens when electrical charges goes through a wire coiled around a metal core
Which electrical charges can move from object to object?
negative charges
What is it called when electrical charges build up or get bigger on an object?
static electricity
What kind of circuit connects more than one lightbulb in one complete path?
series circuit
An area around a magnet where the magnet can push or pull metal is called the...
magnetic field
How are electricity and magnetism related?
electricity can make a magnetic field
a magnetic field can make electricity