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Worksheets8th Grade Forces Review Unit Part 1
Total questions: 13
Worksheet time: 15mins
Name
Class
Date
1.
How do you calculate speed?
a)
Speed is equal to distance over time.
b)
You divide the distance over time.
c)
All of the above.
d)
None of the above.
2.
What is a force that opposes motion between two surfaces?
a)
friction
b)
acceleration
c)
velocity
d)
motion
3.
What is the difference between mass and weight?
a)
mass is how much matter is in an object, and weight is the gravitational pull on that object
b)
mass and weight are the same
c)
weight affects how much mass is in an object
d)
weight is determined by how many atoms make up an object
4.
What is the net force?
a)
20 N
b)
0 N
c)
400 N
d)
40 N
5.
A wheeled cart is moving to the right at a constant speed. Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?
a)
Balanced Forces, Constant Speed
b)
Balanced Forces, Acceleration
c)
Unbalanced Forces, Constant Speed
d)
Unbalanced Forces, Acceleration
6.
____ is a force that occurs when an object rubs against another object.
a)
Motion
b)
Friction
c)
Velocity
d)
Speed
7.
Newton's _____ Law of Motion means that for every force there is a reaction force that is equal in size, but opposite in direction.
a)
First
b)
Second
c)
Third
d)
Fourth
8.
What is gravity?
a)
A force
b)
Energy
c)
A push
d)
All of them
9.
A type of friction that occurs when air pushes against a moving object causing it to negatively accelerate
a)
surface area
b)
air resistance
c)
descent velocity
d)
gravity
10.
The location of a place or an object is called its....
a)
position
b)
motion
c)
speed
d)
reference point
11.
Reference point can also be described as what?
a)
An ending point
b)
A starting point
c)
A description
d)
A location
12.
a)
turn left
b)
turn right
c)
turn around
d)
turn off
13.
What is the speed of an object that travels 60 meters in 4 seconds?
a)
240 m/s
b)
15 m/s
c)
0.067 m/s
d)
15 mph
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