Electrical charges and fields

Front

What is an electric charge?

Back

An electric charge is a property of subatomic particles that causes them to experience a force when placed in an electromagnetic field. There are two types of electric charges: positive and negative.

Front

What is the unit of electric charge?

Back

The unit of electric charge is the Coulomb (C).

Front

What is an electric field?

Back

An electric field is a region around a charged object where other charged objects experience a force. It is represented by electric field lines.

Front

How do electric field lines behave around a positive charge?

Back

Electric field lines radiate outward from a positive charge.

Front

How do electric field lines behave around a negative charge?

Back

Electric field lines point inward toward a negative charge.

Front

What does it mean if electric field lines are close together?

Back

If electric field lines are close together, it indicates a strong electric field.

Front

What does it mean if electric field lines are far apart?

Back

If electric field lines are far apart, it indicates a weak electric field.

Front

What is static electricity?

Back

Static electricity is the buildup of electric charge on the surface of an object, often caused by friction.

Front

What happens when two objects with the same charge are brought close together?

Back

Objects with the same charge repel each other.

Front

What happens when two objects with opposite charges are brought close together?

Back

Objects with opposite charges attract each other.