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WorksheetsNewton's Laws of Motion
Total questions: 126
Worksheet time: 2hrs 5mins
Name
Class
Date
1.
When a heavy football player and a light one run into each other, who exerts more force?
a)
The heavy one
b)
The light one
c)
They are equal
d)
there is no such thing as force
2.
If a ball of cheese is fired into frictionless space, the amount of force needed to keep it going equals
a)
twice the force with which it was fired
b)
the same amount of force with which it was fired
c)
1/2 the force with which it was fired
d)
zero, since no force is requires to keep it moving.
3.
Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron?
a)
feathers
b)
iron
c)
same
d)
depends on their friction
4.
If lil Wayne, who is an alien, weighs 578 Newtons on Earth and 96 Newtons on the moon, this means that his...
a)
mass is greater on earth.
b)
mass is greater on the moon.
c)
inertia is greater on earth and less on the moon.
d)
mass is the same on the moon and the earth.
6.
One object has twice as much mass as another object. The first object also has also twice as much...
a)
velocity
b)
gravitational acceleration
c)
inertia
d)
all of these
6.
One object has twice as much mass as another object. The first object also has also twice as much...
a)
velocity
b)
gravitational acceleration
c)
inertia
d)
all of these
7.
What pulls a ball back to earth?
a)
Gas
b)
Gravity
c)
Friction
d)
Molecules
8.
If a 10 kilogram object accelerates suddenly at 15 m/s2, how much force was applied to the object?
a)
150 Newtons
b)
15 Newtons
c)
150 kilograms
d)
100 kilograms
9.
If you are an astronaut slowly drifting away from the space station, you might be able to drift back to the station by throwing a 555-kg tool rapidly in the direction that you are traveling (away from the station).Please choose from one of the following options.
a)
True
b)
False
10.
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
11.
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
12.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
13.
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
14.
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
15.
An object in motion will stay in what kind of motion as long as the net forces acting on it are zero?
a)
slowing motion in a straight line
b)
accelerating motion in a straight line
c)
constant motion in a straight line
d)
constant motion in an unpredictable direction
16.
friction is a force that acts
a)
in the same direction as the motion
b)
opposite to the direction of the motion
c)
opposite to the applied forces
d)
the same direction as the applied force
17.
What is Newton's First Law
a)
F=ma
b)
Every action has an equal and opposite reaction
c)
An object at rest stays at rest, an object in motion stays in motion.
d)
Friction
18.
After a cannonball is fired into frictionless space, the amount of force needed to keep it going equals
a)
twice the force with which it was fired
b)
the same amount of force with which it was fired
c)
1/2 the force with which it was fired
d)
zero, since no force is requires to keep it moving.
19.
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
20.
Which statement describes a vector?
a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
direction
direction
21.
What is the net force of this object?
a)
10 N, no direction
b)
10 N left
c)
5 N right
d)
0 N no direction
22.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger
b)
smaller
c)
equal
23.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
24.
How are velocity and force similar.
a)
both are described by the grams they act in.
b)
both are described by the distance they act in.
c)
both are described by the speed they act in.
d)
both are described by the direction they act in.
25.
What famous scientist was the SI units of Force named after?
a)
Isaac Newton
b)
Galileo Galilei
c)
Albert Einstein
d)
Charles Darwin
26.
__________ is the sum of all forces acting on an object. It is capable of accelerating a mass.
a)
velocity
b)
gravity
c)
net force
d)
distance
27.
What is the unit of measurement for force?
a)
AMP
b)
Seconds
c)
Newtons
d)
Miles
28.
Which has more Inertia? (so need more force to move)
a)
Truck
b)
Ant
c)
A cat
d)
A skateboard
29.
What is the unit for mass?
a)
m/s
b)
m/s/s
c)
kg
d)
N
30.
What is the unit for force?
a)
kg
b)
m/s/s
c)
m/s
d)
N
31.
An object at rest, stays _____.
a)
at rest
b)
at a constant speed
c)
accelerating
d)
in bed and doesn't come to school
32.
Motions need an unbalanced net force to maintain
a)
True
b)
False
33.
What two factors do you use to describe a force?
a)
speed and mass
b)
motion and direction
c)
strength and direction
d)
distance and time
34.
What can a force do?
a)
all of the above
b)
start a motion
c)
stop a motion
d)
change the direction of the motion
35.
If the force of gravity suddenly stopped acting on the planets they would
a)
spiral slowly toward the sun
b)
continue in their orbits for a short time
c)
move in straight lines tangent to their orbits
d)
fly straight away from the sun
36.
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
37.
an object with a zero net force could be moving in a circle at a constant speed
a)
false
b)
true
38.
If you are driving forward in a car and suddenly slam on the breaks, what would happen to your body and which law does that demonstrate?
a)
Your body would go backwards, 1st Law
b)
Your body would move forward, 1st Law
c)
Your body would stay the same, 1st law
39.
In order to be ___________ forces, their effects must cancel each other out and not cause a change in an object's motion.
a)
balanced
b)
strong
c)
weak
d)
unbalanced
40.
Applying the brakes uses ____________ to slow a vehicle down.
a)
static friction
b)
sliding friction
c)
rolling friction
d)
gravity
41.
Calculate the net force.
a)
5 N
b)
10 N
c)
45 N
d)
500 N
42.
A ball thrown at the ground bounces back up.
a)
Law of Inertia (1st Law)
b)
Law of Mass and Acceleration (2nd law)
c)
Law of Action Reaction (3rd Law)
43.
A ___________ force is the total force felt by an object.
a)
sum
b)
net
c)
strong
d)
balanced
44.
(F = m X a) goes with which law of motion?
a)
First
b)
Second
c)
Third
d)
Fourth
45.
Who is the scientist who came up with the Laws of Motion?
a)
Sir Issac Newton
b)
The Greeks
c)
John Dalton
d)
Sir John Newt
46.
What is gravity?
a)
The force that pulls objects towards each other
b)
The force that pushes objects away from each other
c)
Speed in a given direction
d)
Equal forces acting on an object in opposite directions
47.
Force, Acceleration, and _________. What variable is missing?
a)
Velocity
b)
Weight
c)
Kilograms
d)
Mass
48.
Why is person B having a hard time moving down the hill?
a)
Person B has more friction than person A.
b)
Person B has the same friction as person A.
c)
Person B is out of shape.
d)
Person B has less friction has person A.
49.
To use force to cause something to move closer.
a)
Push
b)
Pull
c)
Gravity
d)
Magnetism
50.
What is motion?
a)
It's like the ocean
b)
Any change in an animal or person's position.
c)
Motion is like acting
d)
Any change in an object or person's position.
51.
If these boys 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.
52.
An object at rest will _______ if no outside forces are applied.
a)
Stay at rest
b)
Increase Velocity
c)
Decrease Mass
53.
The SI units for force are...
a)
Kilograms
b)
Newtons
c)
Meters per second
d)
Pounds
54.
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
55.
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.
56.
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.
57.
An ice skater at rest pushes against a sled at rest, causing both the skater and sled to move away from each other with different accelerations. This is an example 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.
58.
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.
59.
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.
60.
The gravitational pull is greater between two objects that
a)
have greater masses.
b)
have rougher surfaces.
c)
are farther apart.
d)
are moving at greater speed
61.
Dividing the total distance traveled by the total time is how to calculate
a)
average speed.
b)
average velocity.
c)
average acceleration.
62.
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.
63.
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.
64.
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
65.
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
66.
Gravity on the moon is about 1/6 the gravity felt on the earth. This is because
a)
the moon is much less massive than the earth
b)
the earth has a molten core and the moon doesn't
c)
the moon is so much further from the sun than the earth.
d)
the moon is so far away from the earth
67.
What two forces affect gravity?
a)
mass and inertia
b)
mass and distance
c)
mass and force
d)
mass and weight
68.
Weight is a measure of the force of gravity pulling down on an object.
a)
True
b)
False
69.
An object in free fall seems to be
a)
weightless
b)
slowed by air resistance
c)
speeded up by air resistance
d)
not moving
70.
The relationship amoung mass, force and acceleration is explained by
a)
Newton's 1st law
b)
Newton's 2nd law
c)
Newton's 3rd law
d)
law of conservation of momentum
71.
A feather will fall through the air more slowly than a brick because of
a)
gravity
b)
air resistance
c)
inertia
d)
momentum
72.
when a force is exerted on an object, an equal and opposite force is exerted by the object. These forces are referred to as
a)
centripetal forces
b)
friction forces
c)
gravitational forces
d)
action-reaction forces
73.
The path of a projectile is
a)
straight
b)
always vertical
c)
always horizontal
d)
curved
74.
Acceleration due to gravity is
a)
98 m/s2
b)
p.8 m/s2
9.8 m/s2
9.8 m/s2
9.8 m/s2
9.8 m/s2
c)
9.8 m/s
d)
0.98 m/s
75.
The inertia of an object depends on its
a)
momentum
b)
speed
c)
mass
d)
weight
76.
Gravity is one of ___ basic forces
a)
2
b)
3
c)
4
d)
5
77.
A car rounding a curve is subject to ______ force.
a)
rolling
b)
static
c)
centripetal
d)
gravitational
78.
What unit quantity does time measures?
a)
second
b)
newton
c)
meter
79.
What unit quantity does distance measures?
a)
second
b)
newton
c)
meter
80.
What unit quantity does speed measures?
a)
m/s
b)
d/t
c)
m/s2
81.
You jump off a raft in the swimming pool, and when you turn around to get back on the raft, the raft has floated off in the opposite direction.
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
82.
A rock moves slower when shot out of a slingshot than a pebble shot out of the same slingshot.
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
83.
A ball rolling across the floor eventually comes to a stop.
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
84.
A magician pulls the table cloth off a table, leaving the dishes on the table.
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
85.
Forces always occur in equal but opposite ____.
a)
displacement
b)
friction
c)
inertia
d)
pairs
86.
____ is the tendency of a body to resist change in its motion.
a)
Displacement
b)
Friction
c)
Inertia
d)
Pairs
87.
Forces always occurs in equal and opposite pairs called ___ and ___ forces.
a)
mass, distance
b)
action, reaction
c)
inertia, force
d)
newton, joule
89.
The gravitional force between two objects depends on the ____ of the objects and the ____ between them.
a)
mass, distance
b)
action, reaction
c)
inertia, force
d)
newton, joule
89.
The gravitional force between two objects depends on the ____ of the objects and the ____ between them.
a)
mass, distance
b)
action, reaction
c)
inertia, force
d)
newton, joule
90.
Your seat belt restraining you in an accident is an example of Newton's third law of motion.
a)
True
b)
False
91.
Air friction operates in the same direction as the object's motion.
a)
True
b)
False
92.
Inertia is a force that resists motion between surfaces that are in contact.
a)
True
b)
False
93.
Unbalanced forces cause an object to _____.
a)
remain motionless
b)
move at constant velocity
c)
speed up, slow down, or change direction
94.
In order for a helicopter to hover in place, which statement must be true?
a)
The upward force is greater than the downward force.
b)
The upward force is lesser than the downward force.
c)
The upward force is exactly the same as the downward force.
d)
There are no forces acting on the helicopter.
95.
Newton's Second Law of Motion says that if you want to increase the acceleration of an object, you have to _____.
a)
increase the unbalanced force
b)
decrease the unbalanced force
c)
increase the object's mass
d)
make sure all forces are balanced
96.
Newton's Third Law says that forces _____.
a)
always come in equal and opposite pairs
b)
always come in groups of three
c)
are always balanced
d)
are never balanced
97.
Which of Newton's Laws best explains how a rocket can accelerate by pushing against its own burning fuel?
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
d)
None of these
98.
A rocket accelerating upward from a launch pad is an example of _____.
a)
balanced forces
b)
unbalanced forces
c)
zero forces
99.
A book resting on a desk is an example of _____.
a)
balanced forces
b)
unbalanced forces
c)
centrifugal forces
100.
TRUE or FALSE: If you wish to speed up, slow down, or change direction in your car, you need to apply an UNBALANCED force to the car.
a)
TRUE
b)
FALSE
101.
Forces are measured in _____.
a)
kilograms
b)
seconds
c)
meters
d)
newtons
102.
According to Newton's Second Law, an object's acceleration is INVERSELY proportional to its _____.
a)
unbalanced force
b)
balanced force
c)
mass
d)
velocity
103.
What is speed?
a)
how far you go
b)
how much distance is covered over a period of time
c)
how fast you accelerate
d)
the change in the location of a object
104.
What is velocity?
a)
the quickness of an object
b)
the location of an object
c)
acceleration
d)
speed in a specific direction
105.
Can be measured in meters per second (m/s)
a)
Distance
b)
Time
c)
Speed
d)
Acceleration
106.
If a cheetah runs 180 miles in 3 hours, what is its average speed?
a)
60 hours
b)
60 miles
c)
60 miles/hour
d)
60 miles/second/second
107.
A runners races in the 100 meter dash. It takes her 10 seconds to finish. What is her average speed?
a)
10 m/s
b)
1000 m/s
c)
100 seconds
d)
10 seconds
108.
A greater applied force is required to move an object with a greater mass than one with a smaller mass.
a)
True
b)
False
109.
initial v=5 m/s, final v=0 m/s, time is 20 seconds, what is a (acceleration)
a)
(0-5)/20
b)
(5-0)/20
c)
5/20
d)
20/(5-0)
110.
Acceleration only takes place when things speed up.
a)
True
b)
False
111.
When are you undergoing an acceleration in a car?
a)
speed up
b)
slow down
c)
make turns
d)
All of the above
112.
Why does a car accelerate as it round a corner at a constant speed?
a)
Its direction changes
b)
It doesn't
c)
It slows down
d)
Its speeds up
113.
Acceleration is defined at a change in velocity. Velocity is ______
a)
Speed in one direction
b)
The same thing as speed
c)
distance/time
d)
time/distance
114.
Determine the motion of the car.
a)
at rest
b)
constant velocity
c)
speeding up
d)
slowing down
115.
A car accelerates from a standstill to 70 m/s in 10 seconds. What is the acceleration?
a)
0.7m/s2
b)
7m/s2
c)
14m/s2
d)
none of the above
116.
A roller coasters accelerates from an initial velocity of 6.0 m/s to a final velocity of 70 m/s over 4 seconds. What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
117.
A drag racer accelerated from 0 m/s to 200 m/s in 5 s. What was the acceleration?
a)
0 m/s
b)
40 m/s2
c)
-40 m/s2
d)
40 m/s
118.
A box attains a velocity of 27 m/s in 3 seconds from 0m/s. Find the acceleration.
a)
30 m/s
b)
24 m/s2
c)
9 m/s2
d)
81 km/hr
119.
Velocity describes both speed and _____________
a)
time
b)
direction
c)
momentum
d)
acceleration
120.
Friction acts in a direction ___________ to the object's direction of motion.
a)
similar
b)
opposite
c)
parallel
d)
west
121.
You are pushed back into your seat when an airplane takes off.
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
122.
A full grocery cart requires more force to push than an empty cart. Which law of motion does this example represent?
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
123.
A ping pong ball accelerates more than a baseball being thrown with the same force. This is an example of which Law of Motion?
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
124.
When you hit a golf ball with a club the club applies the same amount of force to the ball as the ball applies to the club. This is an example of which law of motion?
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
125.
This is the law that is known as the action and reaction law, which law is it?
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
126.
An object at rest stays at rest and an object in motion stays in motion at a constant speed and in a straight line unless acted upon by another object.
a)
Newton's First Law
b)
Newton's Second Law
c)
Newton's Third Law
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