Magnets Review 2

Front

How does changing distance affect the amount of energy transferred out of the field when forces are attractive? When is potential energy greatest?

Back

Increasing distance increases energy transferred out; potential energy is greatest at maximum distance.

Front

When is potential energy greatest in a repulsive force field?

Back

When the objects are farthest apart

Front

Where is potential energy stored before the magnets start to move?

Back

In the magnetic field

Front

How should a piece of electronic equipment be connected to a battery for electric current to flow?

Back

With both terminals connected to the battery

Front

How can you change the current so that magnetic forces are stronger and more energy is transferred?

Back

Increase the current

Front

How can you change the location of the north and south poles of a magnet? What about an electromagnet?

Back

By cutting and rearranging the magnet or reversing the current in an electromagnet

Front

Why can speakers produce sounds with many different amplitudes and frequencies?

Back

They can vibrate at different rates and strengths.

Front

Bringing magnets closer together affects the strength of the magnetic field and the attractive and repulsive forces in which of the following ways?

Back

The magnetic field strength increases and the forces become stronger.

Front

Without changing the distance between two permanent magnets, how can you make the magnetic force between them stronger?

Back

Increase the strength of the magnets

Front

How can you make the magnetic force between two electromagnets stronger without changing the distance between them?

Back

Increase the electric current through the coils