Magnetism

Front

What will happen when these magnets are brought close together?

Back

They will repel each other.

Front

Iron, Nickel and cobalt are all __________________ metals

Back

ferrous

Front

Where is the strongest attraction force of the magnet? Options: at the poles, in the middle, above the magnet, below the magnet

Back

at the poles

Front

When a compass is brought near the south pole of a magnet, the compass needle will deflect in what way?

Back

The north pole of the compass will point toward the south pole of the magnet

Front

If you break a bar magnet in half, you can separate the north and south pole of the original magnet.

Back

False

Front

Which of these things does NOT affect the strength of an electromagnet?

• Adding batteries
• Looping the wire more times
• Adding an iron bar into the middle
• Increasing the resistance across the wire loops

Back

Increasing the resistance across the wire loops

Front

Moving a magnet inside of a coil of wire ______________ an electric current in that wire, and is how a generator functions. Options:

repels

,

induces

,

resists

,

eliminates

Back

induces

Front

Putting a loop of current carrying wire in the magnetic field of a permanent magnet causes that wire loop to spin. This is the basic design of a _______. Options: generator, motor, electromagnet, circuit.

Back

motor

Front

Coiling a current carrying wire around an iron nail is one way to make an _____________.

Back

electromagnet

Front

The direction of a magnetic field around a current carrying wire is:
- circular around the wire
- in the same direction as current flow
- opposite to the direction of current flow
- there is no magnetic field in the wire

Back

circular around the wire