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WorksheetsForces - Physics 1
Total questions: 88
Worksheet time: 1hrs 12mins
Name
Class
Date
1.
What force keeps the moon in orbit around the Earth?
a)
Weight
b)
Mass
c)
Gravity
d)
Magnetism
2.
Which of the following forces is a force that acts on an object by touching the object?
a)
electricity
b)
friction
c)
gravity
d)
magnetism
3.
On the Picture the balloon pushes the air right. What is the second force in this interaction pair?
a)
The air pulls the ball left
b)
Gravity pulls the balloon down
c)
The air pushes the balloon left.
d)
The air pulls the balloon right.
4.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
5.
What is the unit of force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
6.
for every action force there is...
a)
An equal and opposite reaction force
b)
An equal and different reaction force
c)
a different force
d)
two more forces
7.
Forces that happen between objects that touch are called _____________.
a)
magnetism
b)
gravity
c)
slippery
d)
contact forces
8.
More force is needed to move __________ objects than to move light objects.
a)
big
b)
heavy
c)
square
d)
round
9.
Forces can make objects start moving, _________, ________, or stop moving.
a)
speed up, friction
b)
push, slow down
c)
speed up, slow down
d)
push, pull
10.
Forces can change the ________ of a moving object.
a)
direction
b)
push
c)
pull
d)
friction
11.
Two forces that act on an object without touching it are:
a)
gravity and friction
b)
gravity and magnetism
c)
friction and magnetism
d)
pushes and pulls
12.
The pulling force that we cannot see that exists between any two objects is __________. It keeps us on the ground.
a)
gravity
b)
magnetism
c)
friction
d)
rough
13.
The measure of the pull of gravity on an object is its ___________.
a)
force
b)
volume
c)
height
d)
weight
14.
The force that occurs when one object rubs against another object is called ________.
a)
gravity
b)
friction
c)
magnetism
d)
rough
15.
When forces are balanced an object can be stationary or
a)
slowing down
b)
speeding up
c)
moving at a constant speed
d)
accelerating
16.
What is the name of the force that opposes gravity when you are standing still?
a)
Weight
b)
Electrostatic
c)
Normal
d)
Magnetism
17.
What is the force that slows down moving objects?
a)
friction
b)
gravity
c)
magnetic
d)
electrostatic
18.
What is the net force?
a)
400N Up
b)
400N Down
c)
800N Up
d)
800N Down
19.
What force would create equilibrium?
a)
400N Up
b)
400N Down
c)
800N Up
d)
800N Down
20.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
21.
What is Newton's 1st law of motion?
a)
For every action force there is a reaction force equal in strength and opposite in direction.
b)
Acceleration is force divided by mass
c)
The force of gravity on an object is dependent upon the mass of the objects and the distance between them.
d)
An object at rest will remain at rest while an object in motion will continue in motion at the same velocity unless acted upon by an unbalance force.
22.
When two things collide (no matter the size difference) they exert equal forces on each other. What law is this?
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
d)
Law of Conservation of Energy
23.
If a baseball and a cannonball are dropped from the same height at the same time, which ball will hit the ground first?
a)
the cannonball
b)
the baseball
c)
The balls land at the same time.
d)
the ball with the larger volume
24.
A ____________ is a push or a pull on an object.
a)
chemical
b)
force
c)
magnet
d)
gravity
25.
Assuming the object in the image is sitting at rest on the table, which force would Represent Normal Force?
a)
A
b)
B
c)
C
d)
D
26.
Assume the object in the image is at rest on a table, which vector represents Gravity?
a)
A
b)
B
c)
C
d)
D
27.
A force can cause the following changes except ________________.
a)
speed up a moving object
b)
stop a moving object
c)
change the size of an object
d)
change the mass of an object
28.
_______ is a force.
a)
Volume
b)
Weight
c)
Mass
d)
Energy
29.
If the forces on an object are unbalanced, can the object be at rest?
a)
Yes
b)
No
30.
If the forces on an object are unbalanced, can the object move at a constant speed?
a)
yes
b)
no
31.
You apply a force of 15N to a soccer ball. The force the soccer ball applies to your foot is...
a)
equal to 15N
b)
bigger than 15N
c)
smaller than 15N
d)
impossible to determine without knowing the mass
32.
An object's resistance to a change in motion is called
a)
inertia
b)
energy
c)
momentum
d)
velocity
33.
If something is at rest, there are no forces acting on it.
a)
true
b)
false
34.
If a box is moving to the left, which way is the force of friction?
a)
left
b)
right
c)
up
d)
down
35.
If there are forces on an object, that object must be accelerating.
a)
true
b)
false
36.
Which of Newton's laws is illustrated when a magician pulls a tablecloth out from under the dishes without disturbing them?
a)
first
b)
second
c)
third
d)
fourth
37.
A ____ force is the total force felt by an object.
a)
sum
b)
net
c)
strong
d)
balanced
38.
When the net force is zero, the forces on an object are balanced.
a)
true
b)
false
39.
Any time the forces are unbalanced, an object will remain at rest.
a)
true
b)
false
40.
According to Newton's First Law, an object's velocity will not change unless _____ acts upon it.
a)
a balanced force
b)
an unbalanced force
c)
zero force
41.
A soccer ball accelerates more than a bowling ball when thrown with the same force.
a)
1st Law
b)
2nd Law
c)
3rd Law
42.
Which car is accelerating?
a)
A car that is not moving
b)
A ar that rounds a curve at a constant speed
c)
A car traveling at a constant speed
d)
A car that has a set speed of 60mph
43.
Calculate the net force.
a)
5 N
b)
10 N
c)
45 N
d)
500 N
44.
The scientist who is most famous for developing the Laws of Motion is _____.
a)
Albert Einstein
b)
Stephen Hawking
c)
Sir Isaac Newton
d)
Galileo Galilei
45.
If an object has only one force acting on it, it can be at rest.
a)
True
b)
False
46.
If an object has only one force acting on it, it can be moving at a constant speed.
a)
True
b)
False
47.
Unbalanced forces cause...
a)
motion
b)
equilibrium
c)
a change in motion
d)
an object to move at constant speed
48.
What is the minimum number of forces necessary to create equilibrium?
a)
1
b)
2
c)
3
d)
4
49.
If something is hanging from the ceiling by a string, does the normal force act on it?
a)
yes
b)
no
50.
If something is sitting on a table, does the normal force act on it?
a)
yes
b)
no
51.
Gravity is a _____ force.
a)
field
b)
contact
c)
spring
d)
net
52.
Why do spaceships continue to move in outer space even with their engines off?
a)
they have hidden engines
b)
they use solar panels
c)
they were already in motion so they will stay in motion
d)
the space wind pushes them forward
53.
When two forces act on each other, what do you know about those forces?
a)
they are equal and opposite
b)
the more massive object causes the bigger force
c)
the more massive object causes the smaller force
d)
I don't know anything about any forces.
54.
Why do things continue to move forward even when there are no forces acting on them?
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
55.
The inertia of an object depends on its
a)
velocity
b)
mass
c)
momentum
d)
height
56.
When is the net force zero?
a)
An object going in a circle at a constant speed
b)
An object coming to a stop
c)
An object falling from a window
d)
An object moving at a constant speed on a flat, straight surface
57.
In what direction does the normal force act?
a)
up
b)
down
c)
perpendicular to the surface
d)
parallel to the surface
58.
When an object is at rest, what do you know about the forces on that object?
a)
nothing
b)
there are no forces acting on it
c)
the forces acting on it are balanced
d)
the forces acting on it are unbalanced
59.
The force that comes from a surface and acts perpendicular to the surface is called
a)
Natural Force
b)
Net Force
c)
Normal Force
d)
Negotiable Force
60.
If a box is sitting at rest on a ramp, in which direction is the force of friction going?
a)
straight up
b)
straight down
c)
up the ramp
d)
down the ramp
61.
According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will
a)
remain in motion.
b)
eventually come to a stop.
c)
change its momentum.
d)
accelerate.
62.
Forces always act in equal and opposite pairs.
a)
Newton's 1st Law
b)
Newton's 3rd Law
c)
Newton's second law
63.
Which has more Inertia? (and more force to move)
a)
Truck
b)
Ant
64.
Newton's 1st law is often called the _______.
a)
Newton's 2nd law
b)
action-reaction law
c)
law of equality
d)
law of inertia
65.
A person is pushed forward into their seatbelt when a car stops. Which of Newton's laws explains this motion?
a)
1st law
b)
2nd law
c)
2 and 3 law
d)
3rd law
66.
A crumpled piece of paper hits the ground before a flat sheet of paper because
a)
the acceleration of gravity is greater on the crumpled paper.
b)
there is more air resistance against the flat paper.
c)
the crumpled paper is more massive
d)
the crumpled paper is less massive.
67.
If the mass of an object is 1000kg on Earth, what is it's mass on the moon?
a)
10kg
b)
100kg
c)
1000kg
d)
10,000kg
68.
Which has more Inertia? (so need more force to move)
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
69.
Forces that cancel each other are called __________ forces
a)
inactivated
b)
balanced
c)
null
d)
neutral
70.
When an object is at rest/stationary
a)
There are no forces acting on it
b)
There are forces acting on it but these forces are balanced
c)
There is just one force acting on it, gravity
71.
The tendency of an object to resist changes in its motion is...
a)
inertia
b)
force
c)
acceleration
d)
velocity
72.
The combination of all the forces acting on an object is the...
a)
net force
b)
action force
c)
reaction force
d)
balance force
73.
The net force on a ball thrown in outer space is... (you are no longer touching the ball)
a)
there is none
b)
forward
c)
down and backward
d)
forward and down
74.
A hammer striking a nail drives it into a surface. What effect does the nail have on the hammer?
a)
It has no effect.
b)
It pushes back against the hammer.
c)
It speeds up the hammer.
d)
It has no effect on the hammer but it moves the nail.
75.
When Amelia is swimming, which way does she have to push with her hands to move forward?
a)
upward
b)
downward
c)
forward
d)
backward
76.
According to Newton's third law, which statement describes why it is difficult to walk on an icy pond?
a)
Your shoes push against the ice, but the ice cannot push your shoes.
b)
Your shoes cannot push against ice, so the ice cannot push against your shoes.
c)
The ice is cold so it crumbles as you push against it.
d)
The ice melts under your shoes, making it much more slippery.
77.
The force that prevents a ball rolling on the ground from continuing on its path forever is __________.
a)
inertia
b)
gravity
c)
friction
d)
mass
78.
Newton's first law of motion states that an object must travel ______ unless acted upon by an external force.
a)
in a straight line while speeding up
b)
in an orbit at a constant velocity
c)
in a straight line at a constant speed
d)
in a straight line while slowing down
79.
An object is accelerating when _______________.
a)
it is not moving
b)
it is spinning around
c)
it is changing speed or direction
d)
it continues at the same speed
80.
According to Newton's second law of motion, upon what two factors does the acceleration of an object depend?
a)
the velocity of the object and the amount of force applied it
b)
the mass and weight of the object
c)
the mass of the object and the amount of force applied to it
d)
the speed and direction that the object is moving
81.
If an object is accelerating, then the forces acting on it must be:
a)
zero
b)
balanced
c)
unbalanced
d)
increasing
82.
How does Newton’s third law explain how a rocket takes off?
a)
The rocket’s acceleration is positive, while the gasses acceleration is negative but the direction is the same.
b)
The rocket is at rest until ignition.
c)
The hot gasses move in one direction, while the rocket moves in the opposite direction but with equal force.
83.
A force in the opposite direction to the motion of the object will cause the object to
a)
speed up
b)
slow down
c)
turn
d)
crash
84.
If two forces are in the same direction, they cancel each other out. True or false?
a)
true
b)
false
85.
Forces are needed to start motion.
a)
True
b)
False
86.
Forces are needed to maintain motion
a)
True
b)
False
87.
Forces are needed to stop motion.
a)
True
b)
Flase
88.
If ΣF = 0, the object is
a)
only at rest
b)
only moving at a constant speed
c)
accelerating
d)
either at rest or moving at a constant speed
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