Review for Electricity and Magnetism Unit

Front

What is static electricity?

Back

Static electricity is the build-up of electric charge on the surface of objects, often caused by friction. An example is lightning.

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet in which the magnetic field is produced by an electric current. It can be turned on and off.

Front

What is an independent variable in an experiment?

Back

The independent variable is the item that changes in an experiment, which is tested to see how it affects the dependent variable.

Front

What is a dependent variable in an experiment?

Back

The dependent variable is what you measure in an experiment, and it changes in response to the independent variable.

Front

What is a circuit?

Back

A circuit is a closed loop that allows electricity to flow. It must be complete for devices like light bulbs to work.

Front

What is an open circuit?

Back

An open circuit prevents electricity from flowing, meaning devices like light bulbs will not light up.

Front

What is a closed circuit?

Back

A closed circuit allows electricity to flow freely, enabling devices to operate.

Front

What materials are good insulators?

Back

Good insulators, like rubber, prevent the flow of electricity and are used to cover wires.

Front

What materials are good conductors?

Back

Good conductors, like silver and copper, allow electricity to flow easily through them.

Front

What is magnetism?

Back

Magnetism is a force that can attract or repel certain materials, such as iron, and is produced by moving electric charges.