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WorksheetsForces Review
Total questions: 40
Worksheet time: 30mins
Name
Class
Date
1.
What type of friction keeps you in your seat when the car goes around a corner?
a)
rolling
b)
sliding
c)
static
d)
fluid
2.
What is the unit to MEASURE force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
3.
A ____________ is a push or a pull on an object.
a)
friction
b)
force
c)
magnet
d)
gravity
4.
If these teams are pulling with the same amount of force what will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
5.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
6.
Forces that have a net force of zero
a)
Balanced force
b)
Unbalanced force
7.
The sum of all forces acting on an object.
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
8.
Balanced or Unbalanced?
a)
Balanced
b)
Unbalanced
9.
If an object is not moving the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
10.
Calculate the Net Force.
a)
60N, Left
b)
40N, Right
c)
0N
d)
60N, Right
11.
Calculate the Net Force.
a)
40N, Left
b)
40N, Right
c)
0N, Balanced
d)
75N, Right
12.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
13.
Which could be an example of an unbalanced force?
a)
A plate sitting on a dining table
b)
A ball at the top of a hill that is not moving
c)
Earth orbiting the Sun
d)
An object moving in a straight line at a constant speed
14.
This type of force is when one object pushes or pulls on another object by touching it
a)
contact
b)
gravity
c)
friciton
15.
This type of force is an attraction between two objects
a)
contact
b)
gravity
c)
friction
16.
This type of force resist motion between two surfaces that are pressed together
a)
contact
b)
gravity
c)
friction
17.
Jupiter has about 317 times more mass than Earth. What can you infer from this fact?
a)
That Jupiter’s gravitational force is much weaker than on Earth’s gravitational force.
b)
That Jupiter’s gravitational force is much stronger than Earth’s gravitational force.
c)
That Jupiter’s and Earth’s gravitational forces are equal.
d)
Mass has no effect on the gravitational force between two objects
18.
All objects in the universe have a gravitational attraction to each other.
a)
True
b)
False
19.
What force ultimately slows the roller coaster to a stop?
a)
Applied
b)
Normal
c)
Friction
d)
Magnetic
20.
An _______ force must act on an object for it to CHANGE it's motion
a)
balanced
b)
unbalanced
c)
gravitational
d)
electrical
21.
What does the strength of gravity between two objects depend upon?
a)
Mass & distance
b)
Mass & weight
c)
Gravity & inertia
d)
Inertia & mass
22.
When mass increases then gravity
a)
Decreases
b)
Increases
c)
Stays the same
23.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
24.
What is a force that works AGAINST MOTION?
a)
Force
b)
Motion
c)
Gravity
d)
Friction
25.
The amount of matter in an object
a)
weight
b)
force
c)
gravity
d)
mass
26.
What do the arrows tell you?
a)
strength
b)
direction and strength
c)
direction
d)
speed
27.
The measure of the pull of gravity on an object is ___________________.
a)
motion
b)
weight
c)
speed
d)
friction
28.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
29.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
30.
Which of the following is an example of friction that is helpful?
a)
Brakes used on a bike
b)
Tires from a car on the road
c)
Tread on the bottom of your shoes
d)
All are examples that are helpful
31.
How could you reduce the amount of friction on the box the man is pushing?
a)
increase sliding friction
b)
decrease rolling fiction
c)
increase static friction
d)
replace sliding friction for rolling friction
32.
An airplane is travelling North through the sky at a constant speed when turbulence causes it to take a different route, changing its direction. Explain the forces at work on this plane.
a)
Unbalanced, because the plane is moving forward, not backwards
b)
Unbalanced, because the speed is constant and there is a change in direction
c)
Balanced, because the plane is not falling to a lower altitude
d)
Unbalanced, because the plane is in motion
33.
What two things do all forces have?
a)
gravity and mass
b)
mass and volume
c)
strength and direction
d)
strength and mass
34.
What is the net force of an unbalanced force?
a)
0
b)
0 N
c)
anything besides 0 N
d)
I don't know what net force is.
35.
Does mass or weight change with your location in the universe?
a)
mass
b)
weight
36.
Which of the following is NOT a way to reduce friction?
a)
apply a lubricant like wax
b)
roll an object instead of pushing it
c)
rough up the surface with sandpaper
d)
spray cooking oil on it
37.
As distance increases, gravity
a)
decreases
b)
disappears
c)
increases
d)
goes away
38.
The amount of friction an object experiences depends on _____.
a)
its weight and roughness of the surface
b)
roughness of the surface and surface area
c)
roughness of the surface
d)
weight and surface area
39.
If an elastic material is stretched 3 times its current length, how is the force affected?
a)
Force is not affected.
b)
The force is 1/3 as strong as before.
c)
The force triples.
d)
It depends on the material.
40.
Air resistance is a type of ____ friction.
a)
rolling
b)
sliding
c)
static
d)
fluid
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