Electricity and Magnetism Review

Front

What is the charge on a balloon after rubbing it with wool?

Back

The balloon becomes positively charged.

Front

How does distance affect the strength of electric forces?

Back

The strength of the electric field is strongest at a short distance.

Front

What happens when a negatively charged object comes close to a positively charged object?

Back

They will attract each other.

Front

What occurs when a neutral balloon is rubbed with a cloth?

Back

The balloon gains a negative charge through friction.

Front

Why did Isabella's compass fail to work under a power line?

Back

The electric current running through the lines interferes with the magnetic field.

Front

What is static electricity?

Back

Static electricity is the buildup of electric charge on the surface of objects.

Front

What is an electric field?

Back

An electric field is a region around a charged object where other charged objects experience a force.

Front

What is the principle of attraction and repulsion in electric charges?

Back

Like charges repel each other, while opposite charges attract.

Front

What is the role of electrons in electric charge?

Back

Electrons carry a negative charge and are responsible for electricity.

Front

What is the difference between conductors and insulators?

Back

Conductors allow electric charge to flow easily, while insulators do not.