Topic 7 Vocabulary Test

Number : Name

Electric power

• The rate at which electrical energy is used to do work; expressed in watts (W).
• The transfer of thermal energy from one particle to another.
• A material that conducts heat well. Or A material that allows electric charges to flow.
• A material that does not conduct heat well.
• A buildup of charges on an object.

Poles

• The parts of a magnet where the magnetic effects are strongest.
• Any material that attracts iron and materials that contain iron.
• A force produced when magnetic poles interact.
• A coil of wire that produces an electric field when carrying an electric current.
• A magnet created by wrapping a coil of wire with a current running though it around a core of material that is easily magnetized.

Circuit

• A complete, closed path through which electric charges flow.
• A continuous flow of charge caused by the motion of electrons; the rate at which charge passes a given point; expressed in amperes (A).
• The difference in electrical potential energy per charge between two places in a circuit.
• The measurement of how difficult it is for charges to flow through an object
• The rate at which electrical energy is used to do work; expressed in watts (W)

Insulator:

• A material that does not conduct heat well.
• The force between two charged objects
• The transfer of thermal energy from one particle to another.
• A material that conducts heat well. Or A material that allows electric charges to flow.
• A buildup of charges on an object.

Battery

• A device that is made of several cells and that produces an electric current by converting chemical energy into electrical energy.
• The force between two charged objects
• The transfer of thermal energy from one particle to another.
• A material that conducts heat well. Or A material that allows electric charges to flow.
• A material that does not conduct heat well.

Photocell

• The part of a solar panel that converts light into electrical energy.
• The force between two charged objects
• The transfer of thermal energy from one particle to another.
• A material that conducts heat well. Or A material that allows electric charges to flow.
• A material that does not conduct heat well.

Static electricity

• A buildup of charges on an object.
• The force between two charged objects
• The transfer of thermal energy from one particle to another.
• A material that conducts heat well. Or A material that allows electric charges to flow.
• A material that does not conduct heat well.

Current

• A continuous flow of charge caused by the motion of electrons; the rate at which charge passes a given point; expressed in amperes (A).
• The force between two charged objects
• The transfer of thermal energy from one particle to another.
• A material that conducts heat well. Or A material that allows electric charges to flow.
• A material that does not conduct heat well.

Conduction

• The transfer of thermal energy from one particle to another.
• The force between two charged objects
• A material that conducts heat well. Or A material that allows electric charges to flow.
• A material that does not conduct heat well.
• A buildup of charges on an object.