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WorksheetsGravity, Magnetism, and Electricity Test
Total questions: 30
Worksheet time: 15mins
Name
Class
Date
1.
Opposites _________ and like charges ____________.
a)
attract, repel
b)
repel, attract
2.
On a magnet two north poles will....
a)
attract
b)
repel
c)
not interact
3.
How many poles do ALL magnets have?
a)
One
b)
Two
c)
Three
d)
Four
4.
What do you call materials that electrons cannot easily move through?
a)
Conductor
b)
Metal
c)
Insulator
d)
Static
5.
Static electricity is when __________ builds up.
a)
protons
b)
neutrons
c)
electrons
6.
An object can be negatively charged by
a)
Gain an electron
b)
Gain a proton
c)
Gain a neutron
7.
Where would you be the heaviest?
a)
Earth
b)
Moon
c)
Both are the same
8.
What happens to the strength of a magnetic field as you slowly move away from the magnet?
a)
Increases
b)
Decreases
c)
Does not change
d)
Disappears
9.
What stops charged particles from the sun from hitting Earth?
a)
the mid-ocean ridges
b)
Earth's atmosphere
c)
high altitude electric fields
d)
Earth's magnetic field
10.
Do magnetic field lines cross over one another?
a)
Yes
b)
No
11.
What is the force of attraction between two objects due to their mass?
a)
Mass
b)
Gravity
c)
Weight
d)
Acceleration
12.
As distance between two objects increases the force of gravity...
a)
Increases
b)
Decreases
13.
Gravitational force is _____________ when one or more objects is more massive.
a)
Weaker
b)
Stronger
14.
Electrons have a negative charge.
a)
True
b)
False
15.
Copper is an electrical conductor.
a)
True
b)
False
16.
The build up of electric charge on an object is...
a)
Static Electricity
b)
Electric Charge
c)
Conductor
d)
Insulator
17.
The electrons lost by one object are _________ by another object.
a)
Lost
b)
Gained
c)
Destroyed
d)
Created
18.
Any material that attracts iron or objects made of iron are called...
a)
Magnets
b)
Electricity
c)
Atoms
d)
Electrons
19.
If you were to cut a magnet in half what would happen?
a)
Each piece would have a north and south pole.
b)
The pieces would lose their magnetic power.
c)
Nothing would happen.
d)
One piece would have two north ends and the other would have two south ends.
20.
Earth has a north pole and a south pole like a magnet.
a)
True
b)
False
21.
An electrical current moving through an iron nail can produce a temporary magnet.
a)
True
b)
False
22.
Electricity and magnetism are the same thing.
a)
True
b)
False
23.
Which of the following is an insulator?
a)
Copper
b)
Aluminum
c)
Rubber
d)
Iron
24.
Which of the following is a non-contact force?
a)
Friction
b)
Applied Force
c)
Gravity
d)
Air Resistance
25.
The Earth acts like a giant conductor, so what can it do to static charges (lightning rods)?
a)
Drains the charge
b)
It stays on the surface of the Earth
26.
Why does the needle of a compass point north?
a)
Aligns with the Earth's current magnetism
b)
Electric currents push the needle north
27.
The amount of matter in an object is...
a)
weight
b)
mass
28.
Gravitational force exerted on an object is...
a)
weight
b)
mass
29.
How can you make a magnet stronger?
a)
uncoil some of the wire
b)
cut the magnet in half
c)
wrap more coils of wire around the magnet
30.
Would air resistance have a greater affect on a crumpled up piece of paper or a flat piece of paper?
a)
Flat
b)
Crumpled
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