Fill in the blanks
a form of energy that involves the flow, or movement, of electric charges is called _________.
What is electricity.
material that does not allow electricity to flow through it easily
What is an Insulator
An object that attracts certain metals is called a _____.
What is a magnet.
magnetism is permanent
What is bar magnet?
Electric current flowing through a wire makes the wire act like a magnet.
What is true?
When objects with the same kind of electric charge are brough near each other, they will ________ each other.
What is repel.
material that allows electricity to flow through it easily
What is a conductor?
The continuous flow of negative charges through a material is called _____.
What is a current?
magnetism is temporary?
What is electromagnet?
An electromagnet forms when an electric current flows through a wire that is wrapped around a piece of plastic.
What is false: metal
When objects with the opposite electric charges are brought near each other, they will _____ each other.
What is attract?
copper and silver
What is a conductor?
The pushing or pulling forced caused by a magnet is called _______.
What is magnetism
has a switch that turns electric current on and off
What is Electromagnet?
An electromagnet is made weaker when the amount of electric current flowing through a wire increases.
What is false: stronger
An unbroken path through which negative electric charges flow is called a _______.
What is a circuit?
wood, plastic, and glass
What is an insulator?
The area around a magnet where the forces of the magnet can act is called the ________.
What is magnetic field?
is a solid piece of metal with a pole at each end.
What is a bar magnet?
An electromagnet is made stronger by wrapping a wire more times around a piece of metal.
What is true?
All matters is made up of tiny particles that have electric charges. Thy tiny particles are called ______.
What are atoms.
The human body
What is a conductor
The ends of a magnet, where magnetism is the greatest, are called the _____.
What are poles.
does not change strength
What is a bar magnet?
Electromagnets are using in fire alarms to help keep people safe. They are also used in toasters, microwaves, and much more.
What is true