Electric Force

Front

What happens to the potential energy between two objects with opposite charges when they are moved apart?

Back

The potential energy between the objects would increase.

Front

In which direction will a positively charged particle move when placed next to a negatively charged object?

Back

The positively charged particle will move toward the negatively charged object, which exerts an attractive force as a result of its electric field.

Front

How can electric fields be used to develop a levitation device?

Back

Electric fields can cause objects to attract and repel one another. Repulsive electric forces may be used to help levitate a charged object.

Front

What occurs to charge the comb and hair after a person combs their hair?

Back

The comb became charged by friction. Charges moved from the hair to the comb. Then, the hair became charged by induction or polarization. The positive surface of the hair was attracted to the negative surface of the comb.

Front

Why are conductors better than insulators for carrying electric current?

Back

Conductors have negatively charged particles that flow more freely, so they have less resistance to the flow of charge.

Front

What is electric force?

Back

Electric force is the attraction or repulsion between charged objects.

Front

What is the principle of conservation of charge?

Back

The total electric charge in an isolated system remains constant.

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 difference between conductors and insulators?

Back

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

Front

What is static electricity?

Back

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