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WorksheetsLaws of Motion
Total questions: 90
Worksheet time: 1hrs 15mins
Name
Class
Date
1.
A change in an object's position is called ______.
a)
Speed
b)
Motion
c)
Velocity
d)
Friction
2.
If an object has a kinetic energy, it must be _____.
a)
at rest
b)
in motion
3.
An object at rest will _______ if no outside forces are applied.
a)
Stay at rest
b)
Increase Velocity
c)
Decrease Mass
4.
Momentum is related to Newton's first law.
a)
True
b)
False
5.
A greater applied force is required to move an object with a greater mass than one with a smaller mass.
a)
True
b)
False
6.
The SI units for force are...
a)
Kilograms
b)
Newtons
c)
Meters per second
d)
Pounds
7.
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
8.
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.
9.
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.
10.
A sled sliding on a flat, icy surface with a constant velocity is best described by
a)
Newton’s first law of motion for objects at rest.
b)
Newton’s first law of motion for objects in motion.
c)
Newton’s second law of motion.
d)
Newton’s third law of motion.
11.
Which of the following explains the difference between speed and velocity?
a)
One has motion, and the other does not.
b)
One has direction, and the other does not.
c)
One involves time, and the other does not.
d)
One involves acceleration, and the other does not.
12.
Without any force to change it, an object at rest stays at rest and an object in motion stays in motion
a)
Newton’s first law of motion
b)
Newton’s second law of motion
c)
Newton’s third law of motion
13.
Newton's 1st Law is also called the Law of ...
a)
Friction
b)
Inertia
c)
Unbalanced forces
d)
Newtons
14.
An object in motion tends to stay in motion unless an ___ force acts on it.
a)
unbalanced
b)
balanced
15.
The tendency of an object to resist a change in motion is...
a)
inertia
b)
kinetic energy
c)
vector
d)
net force
16.
Objects with greater _________ also have greater inertia.
a)
speed
b)
mass
c)
temperature
d)
friction
17.
The law of inertia (Newton’s First Law) applies
a)
to both moving and nonmoving objects
b)
only to moving objects
c)
only to objects that are not moving
18.
Because of inertia, a resting object will remain at ________.
a)
rest
b)
a constant speed
c)
school
d)
inertia
19.
Because of inertia, a moving object will keep ________ unless acted on by an unbalanced force.
a)
at rest
b)
moving
c)
in one spot
d)
inertia
20.
What kind(s) of objects have inertia?
a)
all objects with mass
b)
only objects at rest
c)
only objects in motion
d)
only objects whose motion is being changed
21.
You push on a car and it does not move. What is true about the inertia?
a)
The inertia is changing
b)
The inertia of the car is too great
c)
The inertia of the person is equal to the car
d)
There is not inertia because of no movement
22.
Galileo found that a ball rolling down one inclined plane would roll how far up another inclined plane?
a)
The ball would not rull up the other plane at all.
b)
to nearly the original height
c)
to nearly twice the original height.
d)
to nearly half it original height
23.
An object following a straight-line path at a constant speed
a)
has zero acceleration
b)
has no forces acting on it
c)
has a net force acting in the direction of motion
d)
none of these
24.
One object has twice as much mass as another object. The first object also has also twice as much...
a)
velocity
b)
gracitational acceleration
c)
inertia
d)
all of these
25.
If a hockey puck slides on a frictionless force it will eventually slow down because of its inertia.
a)
True
b)
False
26.
Objects at rest remain at rest and objects traveling at a steady rate in a straight line continue that way until a _________acts on them.
a)
force
b)
velocity
c)
inertia
d)
acceleration
27.
The force that two surfaces exert on each other as they rub against each other.
a)
gravity
b)
friction
c)
mass
d)
weight
28.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
29.
Wheels on a skateboard most likely experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
30.
Sally experiences-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
31.
Wheels of a shopping cart experience-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
32.
Swimming fish experience-
a)
Rolling Friction
b)
Sliding Friction
c)
Fluid Friction
d)
Static Friction
33.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
34.
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
35.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
36.
The rougher the surface, the faster an object will travel over the surface.
a)
True
b)
False
37.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
38.
What are 2 factors that determine the amount of friction between 2 objects?
a)
Force and roughness between surfaces
b)
hills and valleys and how smooth or rough the surface is
c)
Amount of force and amount of surface the comes in contact
d)
The force and the weight exerted on the surfaces
39.
The rougher the surface, the faster an object will travel over the surface.
a)
True
b)
False
40.
When most objects with smooth surfaces rub, there is less friction.
a)
True
b)
False
41.
Newton's Third Law States...
a)
Objects in motion stay in motion and objects at rest stay at rest
b)
Force is equal to mass times acceleration
c)
For each action there is an equal and opposite reaction
42.
An archer shoots an arrow. The action force is the bowstring against the arrow, the reaction force is...
a)
Air resistance against the bow
b)
the arrow's push against the bowstring
c)
the grip of the archer's hand on the bow
43.
A baseball player bats a ball with a force of 1,000 N. The ball exerts a reaction force (without any additional forces action on it) against the bat of...
a)
Less than 1, 000 N
b)
1,000 N
c)
More than 1,000 N
44.
A rocket pushes exhaust 10, 000 N. Without any other forces acting on the rocket, how much force does the rocket go forward?
a)
15,000 N
b)
1,000 N
c)
10, 000 N
45.
What is the reaction force to a foot pushing down on the floor?
a)
The foot going through the floor
b)
The floor pushing back against the foot
c)
The floor breaking to the foot
46.
According to Newton's Third law the strength or magnitude of forces will be...
a)
smaller
b)
equal
c)
larger
47.
A swimmer pushes on the water and the water pushes on the hand and the swimmer moves forward. What is the ACTION force?
a)
Swimmer pushes on the water
b)
the water pushes on the hand and the swimmer moves forward
48.
A swimmer pushes on the water and the water pushes on the hand and the swimmer moves forward. What is the REACTION force?
a)
Swimmer pushes on the water
b)
the water pushes on the hand and the swimmer moves forward
49.
A bowling ball hits the pins and the pins fall over. What is the ACTION force?
a)
Bowling ball hitting pins
b)
Pins falling over
50.
The swimmer pushes off of the wall of the pool and moves forward. What is the ACTION in this example?
a)
Swimmer pushes off the wall of the pool
b)
Swimmer moves forward
51.
If you apply MORE force to the ground what happens to the ground pushing on you?
a)
The force remains the same
b)
The force increases
c)
The force decreases
52.
If the gymnast decreases the force they exerts on the trampoline, what will the reaction be?
a)
The gymnast will be pushed back by the trampoline with more force and go higher into the air
b)
The gymnast will be pushed back by the trampoline with less force and not go as high into the air
c)
No change will happen to the gymnast
53.
The baseball player wants to hit a homerun. What does he have to do to the force they exert on the ball?
a)
The baseball player will need to apply more force to the bat swinging at the ball
b)
The baseball player will need to apply less force to the bat swinging at the ball
c)
The baseball player should change nothing about his swing
54.
Katniss Everdeen applies 20 N of force back on her bow. What happens to the arrow when she lets go?
a)
The arrow goes backwards
b)
The arrow goes forwards with 20 N
c)
The arrow goes forwards with 30 N
d)
The arrow goes forwards with 0 N
55.
Which law explains how rockets are launched into space?
a)
Newton's First Law of Motion
b)
Newton's Second Law of Motion
c)
Newton's Third Law of Motion
d)
Newton's Fourth Law of Motion
56.
Which law says that for every action there is an equal and opposite reaction?
a)
Newton's First Law of Motion
b)
Newton's Second Law of Motion
c)
Newton's Third Law of Motion
d)
Newton's Fourth Law of Motion
57.
How many Laws of Motion are there?
a)
1
b)
2
c)
3
d)
4
58.
Who was the scientist who gave us the Laws of Motion?
a)
Sir Isaac Newton
b)
Albert Einstein
c)
Galileo Galilei
d)
Aristotle
59.
For every action there is an equal and opposite re-action.
a)
Newton's First Law of Motion
b)
Newton's Second Law of Motion
c)
Newton's Third Law of Motion
d)
Newton's Fourth Law of Motion
60.
Which best explains why we are able to accelerate forward when starting to run?
a)
As one leg moves backward, it provides an equal and opposite force for the other foot to move forward.
b)
No acceleration takes place. Runners are always at a fixed velocity.
c)
The striking foot pushes backward against the ground. The friction with the ground provides an equal and opposite force forward.
d)
The runner's upper body quickly leans forward, causing the entire body to begin accelerating forward
61.
When a large truck pushes a small car with a given force, the small car is applying an equal and opposite force on the truck.
a)
True
b)
False
62.
What happens when two objects, such as a baseball and a bat, collide?
a)
They hit each other with the same force in the same direction.
b)
They hit each other with the same force in opposite directions.
c)
They hit each other with unequal force in opposite directions.
d)
One remains still while the other one moves in the same direction.
63.
Which law explains why when you put a book on a table the table pushes on the book
a)
3rd law
b)
4th law
c)
1st law
d)
2nd law
64.
Which law explains how rockets are launched into space?
a)
Newton's First Law of Motion
b)
Newton's Second Law of Motion
c)
Newton's Third Law of Motion
d)
Newton's Fourth Law of Motion
65.
According to Newton's _____ Law of Motion, when a hammer strikes and exerts force on a nail, the nail exerts an equal force back on the hammer.
a)
First
b)
Second
c)
Third
d)
Fourth
66.
a)
1st
b)
2nd
c)
3rd
67.
The push or pull that acts on an object
a)
action
b)
acceleration
c)
force
d)
inertia
68.
The resistance of an object to any change in its motion is called ______________________.
a)
inertia
b)
friction
c)
gravity
d)
weight
69.
By pushing backwards a roller skater moves forward. This is an example of Newton's
a)
First Law
b)
Second Law
c)
Third Law
d)
Law of Gravity
70.
The ____ of an object is the force of gravity on the object.
a)
mass
b)
weight
c)
volume
d)
density
71.
Acceleration due to gravity, g, is ____ m/sec2.
a)
4.9
b)
9.8
c)
19.6
d)
39.2
72.
The ____ of an object is a fundamental measure of the amount of matter in the object.
a)
mass
b)
weight
c)
volume
d)
dimension
73.
Newton's Third Law is also known as...
a)
The Law of Inertia
b)
The Law of Acceleration
c)
The Law of Conservation of Momentum (Force Pairs)
74.
According to Newton's third law forces come in pairs?
a)
True
b)
False
75.
An object at rest will _______ if no outside forces are applied.
a)
Stay at rest
b)
Increase Velocity
c)
Decrease Mass
76.
A greater applied force is required to move an object with a greater mass than one with a smaller mass.
a)
True
b)
False
77.
The SI units for force are...
a)
Kilograms
b)
Newtons
c)
Meters per second
d)
Pounds
78.
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
79.
If an action force is a cue ball (white) hitting a billiard ball (various colors) when playing pool, then the reaction force is
a)
exerted on the table
b)
exerted on all the other billiard balls.
c)
not present
d)
exerted by the billiard ball on the cue ball.
80.
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.
81.
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.
82.
A hiker’s velocity begins at 1.8 m/s uphill and changes to 1.5 m/s uphill. How do you know that the hiker has a negative acceleration?
a)
His direction changed.
b)
His direction was unchanged.
c)
His speed increased.
d)
His speed decreased.
83.
Acceleration is caused by a force acting on a mass.
a)
Newton’s first law of motion
b)
Newton’s second law of motion
c)
Newton’s third law of motion
84.
For a force on an object there is an equal and opposite force.
a)
Newton’s first law of motion
b)
Newton’s second law of motion
c)
Newton’s third law of motion
85.
Without any force to change it, an object at rest stays at rest and an object in motion stays in motion
a)
Newton’s first law of motion
b)
Newton’s second law of motion
c)
Newton’s third law of motion
86.
If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration? (F=ma)
a)
The one with a mass of .78 kg will have the greatest acceleration.
b)
The one with a mass of .52 kg will have the greatest acceleration.
c)
They will both accelerate at the same rate.
87.
A 20 kg bike accelerates at 10 m/s2. what was the force?
a)
25 Newtons
b)
20 Newtons
c)
200 Newtons
d)
10 Newtons
88.
A student pushes a box to right with a force of 10N while a young boy pushes the box to the left with a force of 8N. What is the sum of all forces on the box?
a)
18N left
b)
18N right
c)
2N right
d)
2N left
89.
If net force acting on object is 0, then the force is considered to be..
a)
Balanced
b)
Unbalanced
c)
Equal in Direction
d)
Distance/Time
90.
Which type of force(s) will cause a change in an object's motion?
a)
gravity
b)
zero net force
c)
balanced forces
d)
unbalanced forces
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