Electricity
What is a form of energy that involves the flow of electric charges?
electricity
What is a magnet?
an object that attracts certain metals
What is a material that does not allow electricity to flow through it easily?
Insulator
What is an unbroken path through which negative charges can flow?
circuit
When does an object have a negative charge?
When there are more negative than positive charges.
What do opposite charges do when they get close to one another?
attract
Where is a magnets magnetism the strongest?
At its poles
What is a conductor?
A material that allows electricity to flow through it easily.
What is a circuit that has more than one path?
parallel circuit
When does an object have a neutral charge?
When there are the same number of positive and negative charges.
When does static electricity occur?
When negative charges build up on the surface of an object
What is the pushing or pulling force caused by a magnet?
Magnetism
What is a temporary magnet that forms when an electric current flows through a coil of wire around a metal core?
Electromagnet
A magnetic field is caused when --- flows through a circuit?
current
What are 2 things that use electromagnets?
maglev trains, microwaves,
True/false: electricity and magnetism are related.
true
What is the area around a magnet where the force of the magnet can act?
What produces electricity using a coil of wire and a magnet?
a generator
What is current electricity?
The continuous flow of negative charges through a material.
What are the ends of a magnet called?
The poles
What is all matter made up of?
small particles with an electric charge
What are two ways you can use magnets to produce electricity?
by moving a magnet through a coil of wire and by moving a coil of wire through a magnetic field.
Should the wiring in a house be with a parallel circuit or a series circuit.
parallel
What are the 2 things a circuit needs?
A power source and an unbroken path
What do similar charges do when they get close to each other?
repel