Magnetic Domains - Assessment

1.

Multiple Choice

1 min

1 pt

Magnets are made of tiny sections of magnetic fields that are aligned to produce a larger magnetic field. These are called _____.

magnetic domains

magnetic fields

magnetic sections

electromagnets

2.

Multiple Choice

1 min

1 pt

Why does a compass needle point north?

because north is up

it lines up with Earth's magnetic field

because of magic

the compass is programmed to do so

3.

Multiple Choice

1 min

1 pt

You know this substance is magnetized because

all the domains have right angles

the arrows are drawn in red

the domains are aligned

the domains are random

4.

Multiple Choice

1 min

1 pt

Which type of magnet does not lose it's magnetic properties easily.

a permanent magnet

an electromagnet

a temporary magnet

a nail rubbed across the north pole of a magnet

5.

Multiple Choice

1 min

1 pt

Which of these images illustrates a unmagnetized material?

6.

Multiple Choice

1 min

1 pt

How can a material become magnetized?

Placing the object into a strong magnetic field

Heating the object

Arrange the magnetic domains randomly

7.

Multiple Choice

1 min

1 pt

The orbiting electrons in a magnetic material makes each atom:

A mini magnet

An atomic magnet

A small magnet

AT tiny magnet

8.

Multiple Choice

1 min

1 pt

A permanent magnet

has no magnetic domains until a magnet is near it

has magnetic domains aligned only when another magnet is near it

has magnetic domains aligned all the time

has no magnetic domains

9.

Multiple Choice

1 min

1 pt

A temporary magnet

has no magnetic domains until a magnet is near it

has magnetic domains aligned only when another magnet is near it

has magnetic domains aligned all the time

has no magnetic domains

10.

Multiple Choice

1 min

1 pt

What happens when you split a magnet in half?

It becomes twice as strong

You end up with two smaller magnets

You end up with a North Pole magnet and a South Pole Magnet (as long as you split it perfectly in half)

Your magnet loses all of it's magnetism (it leaks out of the break)

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