Fields and Interactions

Front

What is gravity?

Back

Gravity is a force that attracts two bodies with mass towards each other. It can be described by a gravitational field.

Front

What is a gravitational field?

Back

A gravitational field is a region around a mass where another mass experiences a force of attraction.

Front

What happens to gravitational force as distance increases?

Back

Gravitational force decreases with distance.

Front

What is an electromagnetic field?

Back

An electromagnetic field is a physical field produced by electrically charged objects, which can exert forces on other charged objects.

Front

What is electromagnetic induction?

Back

Electromagnetic induction is the process by which a changing magnetic field can induce an electric current in a conductor.

Front

Can gravity be both attractive and repulsive?

Back

No, gravity is only an attractive force.

Front

What is the relationship between electric and magnetic fields?

Back

An electric field can induce a magnetic field, and a changing magnetic field can induce an electric field.

Front

What happens to a negatively charged object placed between two oppositely charged blocks?

Back

It moves toward the positively charged block.

Front

What is the effect of distance on the force between two magnets?

Back

As the distance between two magnets increases, the force between them decreases.

Front

What is a field in physics?

Back

A field in physics is a region of space where a force can be felt by an object with mass or charge.