WorksheetsForces and Interactions Study Guide
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
What is Newton's 3rd Law of Motion?
a)
To every action, there is an equal and opposite reaction
b)
When acted upon, an object will always stay in place
c)
An object in motion tends to stay in motion unless acted upon by another force
d)
For every action, a parallel action will occur
2.
Are the forces balanced or unbalanced?
a)
Balanced
b)
Unbalanced
c)
Neither
d)
None of the Above
3.
Are the forces balanced or unbalanced?
a)
Balanced
b)
Unbalanced
c)
Neither
d)
None of the Above
4.
What two things determine the amount of friction?
a)
The difference in density between the surfaces and the types of surfaces in contact
b)
How much force pushes the surfaces together and the difference in density between the surfaces
c)
How much force pushes the surfaces together and the types of surface in contact
d)
How durable the contact is between surfaces and how much force pushes the surfaces together
5.
What happens when you put two magnets together with the same poles facing each other?
a)
They will attract
b)
They will repel
6.
What happens when you put two magnets together with opposite poles facing each other?
a)
They will attract
b)
They will repel
7.
What is the rate at which all things fall to the Earth?
a)
9.3 m/s
b)
3.8 m/s
c)
8.4 m/s
d)
9.8 m/s
8.
Between what two points does the Kinetic Energy increase?
a)
A & B
b)
B & C
c)
C & D
9.
Between what two points does the Potential Energy increase?
a)
A & B
b)
B & C
c)
C & D
10.
What happens to the energy of an object as it moves down the hill?
a)
The Potential Energy turns into Kinetic Energy
b)
The Kinetic Energy turns into Potential Energy
c)
The energy levels don't change
d)
The energy goes away
11.
What are the three magnetic surfaces?
a)
Copper, Cobolt, Iron
b)
Iron, glass, Nickel
c)
Wood, Iron, Cobolt
d)
Iron, Nickel, Cobolt
12.
What material is the Earth's core made out of?
a)
Copper
b)
Nickel
c)
Iron
d)
Cobalt
13.
True or False: If the Earth's magnetic poles got reversed, cell phones would stop working
a)
True
b)
False
14.
True or False: Magnets have two poles-North and South
a)
True
b)
False
15.
How does a compass work
a)
It just knows all the directions
b)
The North end aligns with the Earth's magnetic field
c)
The South aligns with the Earth's magnetic field
d)
Gravity pulls the arrow down, which is South.
16.
If a person went to the Earth and the Moon, would their mass, weight, or both change due to different gravitational pulls?
a)
Mass
b)
Weight
c)
Both
d)
Neither
17.
How can you magnify an object
a)
Run it back and fourth on a magnet as many times as possible
b)
Run it against the magnet in the same direction a lot
c)
It is not possible to magnify an object
d)
Hit it against an object that is magnetic
18.
What is one way to strengthen the force between two magnets?
a)
Bring them closer together
b)
Bring them farther apart from each other
c)
You cannot strengthen the force between two magnets
19.
How can you create a stronger electromagnet
a)
Connect it to an outlet and let it charge
b)
Add more coils and a stronger power source
c)
Don't let it get hot
d)
Keep it away from all magnetic materials
20.
True or False: Both Copy Machines and Door bells run on electromagnetism.
a)
True
b)
False
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