8.3 Review

In which part of a magnet is the magnetic force strongest?

• In the Center

• At the Poles

• In the middle

• At the North Pole only

What will happen when two like poles of magnets are put together?

• They attract each other

• They repel each other

What will happen when two opposite poles of magnets are put together?

• They attract each other

• They repel each other

Which is an example of magnetic object?

• Iron screw

• Copper wire

• Rubber toy

• newspaper

When _______________ travels through a

conductor, a magnetic field is created

• current

• a magnetic field

• neutrons

Electric currents produce _____________

• electron clouds

• magnetic fields

• sound waves

Electrons which collect at the negative end of the battery, can flow to the positive end through a ___________________

• wire

• electron cloud

• magnet

What factors affect the strength of magnetic forces?

• Distance between the magnets

• Number of magnets

• Number of coils

• Strength of the current

• thickness of wire

What direction does the magnetic force point?

• Out of north, into south

• Out of south, into north

• Out of north and south

• It has no direction

What does this image show?

• Parallel circuit

• Series circuit

• Magnet

• Electromagnet