Electricity

What is an insulator?

• The area of a conductor through which a current is able to move

• A material which does not allow electricity to go through it

• The amount of devices which are in a circuit

• A battery, or other device, which provides energy for a circuit

What is a conductor?

• A material that allows electricity to go through it

• The area of a conductor through which a current is able to move

• A battery, or other device, which provides energy for a circuit

• When there is only one path for the electricity to flow

What is the continuous flow of electric charges through a material called?

• Electric field

• Electric force

• Electric current

• Electric circuit

Which equation shows how to calculate resistance?

• V = I ÷ R

• R = I x V

• I = R x V

• R = V ÷ I

Which of the following is an insulator?

• A rubber

• A wire

• A penny

• A metal spoon

What is the purpose of a fuse?

• To break the circuit and turn the power off if there is too much power

• To add more power to the circuit

• To be a conductor

• To be an insulator

What type of electric circuit only has ONE path for the electricity to flow through?

• Series

• Parallel

• Open

• None of the above

Why do electricians always wrap wires in plastic?

• Plastic comes in many different colors

• Plastic is a good electrical conductor

• Plastic makes the wires easy to bend

• Plastic is a good electrical insulator

Tags

NGSS.5-PS1-3

Which of these materials is a good conductor of electricity?

• Rubber

• Metal

• Newspaper

• Glass

Tags

NGSS.5-PS1-3

What is electric current that reverses its direction in a regular pattern called?

• Voltage

• Direct current

• Alternating current

• Parallel circuit