WorksheetsMagnetic force
Total questions: 25
Worksheet time: 47mins
Name
Class
Date
1.
What is our best evidence that Earth has a magnetic field?
a)
All things fall toward Earth's center
b)
A compass needle lines up with it
c)
Winds blow from east to west
d)
Earth's oceans all have currents
2.
How is Earth's magnetic field similar to that of a magnet?
a)
It is hundreds of miles long
b)
It has north and south poles
c)
It is made in Earth's core
d)
It is shaped like a horseshoe
3.
Why does a compass needle point north?
a)
The compass is a bar magnet
b)
Because north is up
c)
Because it's magic
d)
It lines up with the Earth's magnetic field
4.
A magnet cannot not move which of the following objects?
a)
a paper clip
b)
a nail
c)
a toothpick
d)
a staple
5.
Where is the force of attraction the strongest on a magnet?
a)
at the poles
b)
in the middle
c)
above the magnet
d)
below the magnet
6.
Magnets cannot be made from
a)
cobalt
b)
nickel
c)
iron and steel
d)
wood
7.
Every magnet has a
a)
east and west pole
b)
north and south pole
c)
east and south pole
d)
north and west pole
8.
What happens if you drop a magnet?
a)
becomes stronger
b)
becomes weaker
c)
stays the same
9.
If two magnets come together what is it called?
a)
Repel
b)
Force
c)
Attract
d)
None of the Above
10.
If 2 magnets push away from each other what is it called?
a)
Attract
b)
Iron
c)
Repel
d)
None of the above
11.
Can the North and North poles attract?
a)
Yes
b)
No
12.
Witch two poles can attract?
a)
North
b)
South
c)
North and South
d)
None of the above
13.
Protons are ______ charged and neutrons have ______ charged.
a)
Positive, negative
b)
Positive, neutral
c)
Negative, Positive
d)
Neutral, negative
14.
Electrons have a:
a)
Negative charge
b)
Neutral charge
c)
Positive charge
15.
Substance may become charged when:
a)
Electrons are gained by an object
b)
Electrons are lost by an object
c)
Both of these answers
d)
None of these answers
16.
What does the force of gravity depend on?
a)
Mass of the object
b)
Speed of the object
c)
Shape of the object
d)
Density of the object
17.
The closer the charges, the ___________ the force between them
a)
closer
b)
further
c)
stronger
d)
weaker
18.
What types of charges repel?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Neutral and Neutral
19.
Two north poles will attract.
a)
True
b)
False
20.
Magnets have a north and a south ___________
a)
shape
b)
color
c)
pole
d)
region
21.
What happens when two north poles of a magnet are placed together?
a)
they repel
b)
they attract
c)
they cancel each other out
d)
the strength of the magnet is doubled
22.
A push or pull that causes a change in motion
a)
Friction
b)
Gravity
c)
Force
d)
Mass
23.
The amount of matter in an object
a)
weight
b)
force
c)
gravity
d)
mass
24.
The more force an object has, the __________ it travels??
a)
less
b)
farther
c)
slower
d)
person's position.
lower
lower
25.
What pulls a ball back to earth?
a)
Gas
b)
Gravity
c)
Friction
d)
Molecules
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