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Unit 4, Lesson 2: Magnetism
By Jason Clark
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Last updated almost 8 years ago
13 questions
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Note from the author:
McGraw Hill - Imagine It - 4th grade
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Question 1
1.
'Rarely' means about the same as
lightly.
not often.
surely.
not cooked.
Question 2
2.
The Earth has a hot iron 'core.' The 'core' of something is its
central part.
top.
warmest part.
length.
Question 3
3.
An electric 'current' can produce its own magnetic field. In this sentence, a 'current' is a
flow.
tide.
very thin wire.
unit of measurement.
Question 4
4.
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.
Question 5
5.
Opposite poles 'attract'. 'Attract' means
push apart
move toward one another
rails that are side by side
hamburger
Question 6
6.
What are most magnets made of?
plastic or rubber
iron or steel
air and water
dirt and water
Question 7
7.
What is the push or pull of a magnet called?
magnetic reaction
magnetic electricity
magnetic force
magnetic generation
Question 8
8.
What makes a compass work?
electricity from the air
the gravitational pull of the moon
the tides
Earth's magnetic force
Question 9
9.
Which of these has an electromagnet in it?
a doorbell
a dinner plate
a sofa
a paperclip
Question 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
Question 11
11.
How does the Earth act like a huge magnet?
Question 12
12.
Why is a magnetic train faster than an ordinary train?
Question 13
13.
In what form is iron usually found?