Electricity & Magnetism Flashcard

Front

What is the buildup of charges on an object called?

Back

Static charge.

Front

What materials do magnets typically stick to?

Back

Iron.

Front

What is an electromagnet commonly used for?

Back

A device on the end of a crane used to lift scrap metal.

Front

Does an open circuit allow charges to flow?

Back

False.

Front

What is the characteristic of alternating current?

Back

It reverses direction repeatedly.

Front

What is the definition of electricity?

Back

The flow of electric charge.

Front

What is the unit of electric current?

Back

Ampere (A).

Front

What is the principle behind electromagnetism?

Back

Electric current produces a magnetic field.

Front

What is the difference between direct current (DC) and alternating current (AC)?

Back

DC flows in one direction, while AC reverses direction periodically.

Front

What is a circuit?

Back

A closed loop that allows electric current to flow.