A form of energy that can travel through space. It can also pass through some types of matter.
What is light energy?
100
Particles with the same charge _____.
What is repel?
100
A device in which current produces magnetism is called an _________.
What is electromagnet?
100
A path along which electric charges can flow.
What is an electric circuit?
100
A push or a pull.
What is a force?
200
Energy caused by the movement of electric charges.
What is electrical energy?
200
Particles with opposite charges _________.
What is attract?
200
The mechanical energy of falling water is used to turn generators that change mechanical energy into electrical energy. This happens inside a ______________.
What is a hydroelectric dam?
200
For an electrical device to work, the circuit must form a complete loop. This type of circuit is called a ________.
What is closed circuit?
200
A force of attraction between two objects. The size of this force increases as the mass of the objects increases. It acts on objects even if they are not touching.
What is gravity?
300
The total energy of motion and position of an object. Also known as kinetic energy + potential energy.
What is mechanical energy?
300
Electric charges can build up on objects. This buildup is called __________.
What is static electricity?
300
A device that converts kinetic energy to electrical energy.
What is a generator?
300
This type of circuit has only one path for electric charges to follow.
What is a series circuit?
300
A force that opposes motion. It acts between two objects that are touching.
What is friction?
400
Energy that is stored in matter and that can be released by a chemical reaction.
What is chemical energy?
400
When electric charges have a path to follow, the move in a steady flow called an ____________.
What is an electric current?
400
A material that resists the flow of electric charge is called an __________.
What is an insulator?
400
This type of circuit has several different paths for electric charges to follow.
What is a parallel circuit?
400
Forces on an object that are equal in size and opposite in direction.
What are balanced forces?
500
A property of a particle that affects how it behaves around other particles.
What is electric charge?
500
A device that converts electrical energy into mechanical energy.
What is an electric motor?
500
A material that readily allows electric charges to pass through is called a __________.
What is a conductor?
500
This occurs when too many devices in a circuit are turned on.