Energy Unit Review

Front

What is an insulator?

Back

A material that resists the flow of electricity.

Front

What is the unit for electrical resistance?

Back

Ohm.

Front

What is the overall charge of a neutral atom?

Back

Zero.

Front

Where are the Earth’s magnetic poles located?

Back

At the North and South Poles.

Front

What is the best conductor of electricity?

Back

Copper.

Front

What is a conductor?

Back

A material that allows the flow of electricity.

Front

What is a semiconductor?

Back

A material that can conduct electricity under certain conditions.

Front

What is electrical current?

Back

The flow of electric charge, measured in Amperes.

Front

What is voltage?

Back

The difference in electric potential between two points, measured in Volts.

Front

What is the relationship between voltage, current, and resistance?

Back

Ohm's Law states V = I × R, where V is voltage, I is current, and R is resistance.