The Earth has a hot iron 'core.' The 'core' of something is its
central part.
top.
warmest part.
length.
3
10
An electric 'current' can produce its own magnetic field. In this sentence, a
'current' is a
flow.
tide.
very thin wire.
unit of measurement.
4
10
There is no 'friction' from wheels on rails on a magnetic train. 'Friction' is
rolling.
a loud noise.
rubbing.
a force which uses no energy.
5
10
Opposite poles 'attract'. 'Attract' means
push apart
move toward one another
rails that are side by side
hamburger
6
10
What are most magnets made of?
plastic or rubber
iron or steel
air and water
dirt and water
7
10
What is the push or pull of a magnet called?
magnetic reaction
magnetic electricity
magnetic force
magnetic generation
8
10
What makes a compass work?
electricity from the air
the gravitational pull of the moon
the tides
Earth's magnetic force
9
10
Which of these has an electromagnet in it?
a doorbell
a dinner plate
a sofa
a paperclip
10
10
A North pole of a magnet will always be attracted to
the North pol of a magnet
B
the South pole of a magnet
D
11
10
How does the Earth act like a huge magnet?
12
10
Why is a magnetic train faster than an ordinary train?
13
10
In what form is iron usually found?
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