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WorksheetsMotion and Forces Review. Physical Science
Total questions: 112
Worksheet time: 2hrs 52mins
Name
Class
Date
1.
An object that changes position relative to a reference point is
a)
stationary
b)
in motion
c)
moving at a constant speed
d)
moving at constant velocity
2.
Average speed can be represented by the mathematical expression
a)
distance/time
b)
time – distance
c)
distance x time.
d)
time + distance
3.
The ____________of an object consists of its speed and direction
a)
velocity
b)
average speed
c)
instantaneous speed
d)
displacement
4.
The term for when an object speeds up, slows down, or changes direction
a)
Speed
b)
Velocity
c)
Acceleration
d)
Newtons
5.
18 km/s in a northerly direction is an example of
a)
velocity
b)
Speed
c)
acceleration
d)
momentum
6.
The net force of the following diagram is
a)
20 N
b)
Moving to the left
c)
Balanced forces
d)
160 N
7.
Which graph best represents a graph of a car travelling down a freeway at a CONSTANT speed?
a)
A
b)
B
c)
C
d)
D
8.
If forces acting on an object are balanced, then there _________ be a change in motion
a)
will
b)
will not
9.
The snail is traveling at 5 cm/hr. This is an example of
a)
speed
b)
forces
c)
acceleration
d)
velocity
10.
The runner's motion as they turned the curve to pass the baton is best described as
a)
speed
b)
force
c)
acceleration
d)
velocity
11.
The net force of the following diagram is
a)
620N→
b)
To the right→
c)
20N←
d)
balanced↔
12.
What is the speed of the object represented by the graph?
a)
0.5 m/s
b)
2 m/s
c)
5 m/s
d)
4 m/s
13.
a change in position is defined as
a)
force
b)
motion
c)
speed
d)
acceleration
14.
How are speed and velocity different?
a)
Speed includes direction
b)
Speed indicates momentum
c)
Velocity includes Momentum
d)
Velocity includes direction
15.
A student slides a book across a desk by giving it an initial push. Which of the following is the MOST important reason that the book eventually comes to a stop instead of continuing to slide?
a)
The initial force was too weak to keep the book in motion.
b)
The mass of the book was not enough to keep the book in motion.
c)
The force that occurs when the book rubs against the desk stops the book.
d)
The magnetic force from the Earth stops the book.
16.
When an object is acted on by unbalanced forces, the object will
a)
continue in the same direction
b)
continue at the same speed
c)
accelerate in the direction of the unbalanced force
d)
will have no change in motion
17.
A satellite orbits the Earth at a constant speed. The forces that maintain the constant speed must be -
a)
BALANCED
b)
UNBALANCED
c)
CANCELLED
d)
DISPLACED
18.
What is the SI unit used to measure weight?
a)
Grams
b)
Liters
c)
Pounds
d)
Newtons
19.
What force ultimately slows the roller coaster to a stop?
a)
Applied
b)
Normal
c)
Friction
d)
Magnetic
20.
What is the unit for mass?
a)
m/sec
b)
kg/sec
c)
kg
d)
kg m/sec
21.
What is air resistance?
a)
friction in the air that slows things down
b)
when an airplane flies into a cloud
c)
when you feel the air hitting your face
22.
Why do we need friction?
a)
It helps objects go faster.
b)
It helps objects go up higher.
c)
It helps make objects go slower or stop.
23.
What kind of surface is a gravel and rocks?
a)
smooth
b)
rough
24.
What kind of surface is a bowling alley?
a)
smooth
b)
rough
25.
What does a curved line on a distance-time graph show?
a)
That the speed is changing.
b)
That the object is not moving.
c)
That the object is constant.
26.
Friction happens in solids, liquids, and gases.
a)
True
b)
False
27.
What is Friction?
a)
How much something weighs
b)
When 2 objects slide against each other
c)
How fast something is going
28.
What are EQUAL forces acting on an object in opposite directions that do not change the object's motion?
a)
Friction
b)
Weight
c)
Balanced Forces
d)
Unbalanced Forces
29.
The force that two surfaces exert on each other when they rub against each other.
a)
Friction
b)
Gravity
c)
Weight
d)
Force
30.
If an object does not move at all, what does that mean about the forces acting on the object?
a)
The forces are balanced.
b)
The forces are unbalanced.
31.
Is a force that pulls objects toward each other and down to the ground
a)
Force
b)
Friction
c)
Gravity
d)
weight
32.
Ted was rolling a pencil on his desk and the pencil fell down to the ground. What force made this occur?
a)
Magnetism
b)
Gravity
c)
Friction
33.
Look at the image. What two forces are happening in this picture?
a)
Friction & Magnetism
b)
Magnetism & Gravity
c)
Friction & Gravity
34.
What are UNEQUAL forces acting on an object in opposite directions that cause motion?
a)
Balanced Forces
b)
Unbalanced Forces
c)
Gravity
35.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
36.
It's field day and two classes are playing tug-of-war. One side has 4 people and the other side has 8 people. What is this an example of?
a)
balanced forces
b)
unbalanced forces
37.
The Quick Start Moving Company is a box of feathers and a box of Legos for the Smith family. Which box has more mass?
a)
the box of feathers
b)
the box of Legos
c)
Neither box
38.
This is an example of _____ because the object WILL move.
a)
Unbalanced Forces
b)
Balanced Forces
c)
Neither
39.
What are 3 ways to describe MOTION? (We have talked about this for 5 weeks!!!!!!!!!)
a)
Gravity, Magnetism, Friction
b)
Speed, Direction, Position
c)
Rough, Smooth, Lubricants
40.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
41.
What is the net force
a)
10 N
b)
0 N
c)
25 N
d)
1 N
42.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
43.
When two forces acting on an object are not equal in size.
a)
Balanced Force
b)
Friction
c)
Velocity
d)
Unbalanced Force
44.
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
45.
What is the net force?
a)
65 N left
b)
65 N right
c)
35 N left
d)
35 N right
46.
What is the unit of measurement for force?
a)
AMP
b)
Seconds
c)
Newtons
d)
Miles
47.
What direction will this box move.
a)
North East
b)
North West
c)
South East
d)
South West
48.
Calculate the net force and direction.
a)
7
b)
7N
c)
7N to the left
d)
7N to the right
49.
Who will win?
a)
The blue team with a net force of 300 N.
b)
The green team with a net force of 300 N.
c)
The green team with a net force of 200 N.
d)
The blue team with a net force of 300 N.
50.
A bike racer travels 17 mi/hr in a South direction. This is an example of -- (8.6B)
a)
distance
b)
speed
c)
velocity
d)
acceleration
51.
Which graph best represents a car traveling down the freeway at a constant speed? (6.8D)
a)
a
b)
b
c)
c
d)
d
52.
Javelinas need strong leg muscles to help provide enough force for them to accelerate to high speeds. This fast movement can help Javelinas escape from predators and reach the safety of the pack. If a Javelina runs 42 meters in 6 seconds, what is its average speed? (6.8C)
a)
6 m/s
b)
7 m/s
c)
48 m/s
d)
252 m/s
53.
The speedometer on your car tells you
a)
average velocity
b)
instantaneous velocity
c)
average speed
d)
instantaneous speed
54.
What is this graph representing?
a)
Constant Speed
b)
Acceleration (speeding up)
c)
Deceleration (slowing down)
d)
No motion
55.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
56.
If you run around the football field (which is 2 miles) 3 times, what is your distance?
a)
0 miles
b)
3 miles
c)
6 miles
d)
9 miles
57.
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
58.
A description of the speed and direction of an object's motion
a)
Velocity
b)
Speed
c)
Acceleration
d)
Vector
59.
A measurement of how fast an object is moving
a)
Velocity
b)
Speed
c)
Vector
d)
Acceleration
60.
What is the speed of an object that travels 20 meters in 4 seconds?
a)
80 m/s
b)
0.2 m/s
c)
5 m/s
d)
24 m/s
61.
A golf ball accelerates off a tee at 15m/s2, changing its velocity from 0m/s to 50 m/s down the fairway. How long did it take the golf ball to accelerate?
a)
750 seconds
b)
35 seconds
c)
0.3 seconds
d)
3.3 seconds
62.
A ball of clay is thrown at a wall at a velocity of 28.0 m/s. After it hits the wall, it takes 0.020 s to stop. What is the acceleration of the clay when it hits the wall?
a)
1400 m/s2
b)
-1400 m/s2
c)
0.56 m/s2
d)
-0.56 m/s2
63.
Acceleration is defined as the CHANGE in
a)
time it takes for one place to move to another place.
b)
velocity of an object.
c)
distance divided by the time interval
d)
velocity divided by the time interval
64.
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
65.
In each of the following cases, determine where the car has no acceleration ?
a)
A car shortly after a stoplight turns green.
b)
A car approaching a red light
c)
A car with the cruise control set at 80 km/h
d)
A car turning a curve at a constant speed
66.
The SI unit for acceleration is
a)
mph
b)
ft/sec2
c)
m/s2
67.
When are you undergoing an acceleration in a car?
a)
speed up
b)
slow down
c)
make turns
d)
All of the above
68.
A negative acceleration means that your object is _____.
a)
not accelerating
b)
not moving
c)
speeding up
d)
slowing down
69.
A dog runs with an initial speed of 7.5 m/s on a waxed floor. It slides to a stop in 15 seconds. What is the acceleration?
a)
-7.5 m/s
b)
-7.5 m/s2
c)
-0.5 m/s2
d)
7.5 mi//hr
70.
A roller coasters accelerates from an initial velocity of 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
71.
A correct measure of velocity would be
a)
300 m/hr
b)
7,800 m/sec
c)
40 kn/hr north
72.
The rate that a car's velocity changes is its
a)
speed
b)
force
c)
gravity
d)
acceleration
73.
If lil Houdeshell weighs 378 Newtons on Earth and 63 Newtons on the moon, this means that her...
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.
74.
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
75.
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
76.
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.
77.
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
78.
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
79.
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
80.
A(n) __________ is a push or pull.
a)
newton
b)
acceleration
c)
force
d)
momentum
81.
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
82.
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
83.
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
84.
What pulls a ball back to earth?
a)
Gas
b)
Gravity
c)
Friction
d)
Molecules
85.
What is the name for a push or pull?
a)
A movement
b)
A force
c)
Speed
d)
Density
86.
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
87.
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
88.
Newton's Third Law is also known as...
a)
The Law of Inertia
b)
The Law of Acceleration
c)
The Law of Action Reaction
89.
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
90.
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
91.
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.
92.
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
a)
The cannon moving forward
b)
The cannonball moving forward
c)
The cannon moving backward
d)
The cannonball moving backward
93.
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
94.
The SI units of force are measured in
a)
Grams
b)
Newtons
c)
Pounds
d)
Kilograms
95.
A pencil is being pulled to a table with 2 N of force from gravity. The table provides 2N of force back on the pencil. Which statement is true?
a)
The net force on the pencil is 4N
b)
The net forces on the pencil are balanced
c)
The force of gravity is stronger than the force of the table
d)
The pencil should be moving
96.
Which is an example of Newton's third law about action and reaction forces?
a)
A rocket takes off from the ground
b)
A book slides forward when the car stops
c)
A heavier ball falls at the same speed as a lighter ball
d)
A vehicle will slow down as it curves
97.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced
a)
12 N Right No
b)
4 N Left No
c)
12 N Right Yes
d)
4 N Left Yes
98.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger
b)
smaller
c)
equal
99.
A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
100.
Pushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more inertia.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
101.
This person bought coffee and put it on the seat next to them. If they stopped quickly and the coffee spilled which law would that represent?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
102.
When you step on a Lego. You push on the Lego and the Lego pushes back on you.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
103.
"An object in motion (or at rest) will to stay in motion (or at rest) until an outside force acts upon it."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
104.
Force = Mass x Acceleration
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
105.
"For every action, there is an equal and opposite reaction."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 4th Law
106.
In the picture, the blocks are flying out of the truck based on which of Newton's laws?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Newton's 6th Law
107.
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
108.
Gina and Mike are dragging a toy box across the floor. Gina's toy box has a mass of 10 kg and Mike's toy box has a mass of 12 kg. If both Gina and Mike exert the same force on each toy box, which one will accelerate more SLOWLY according to Newton's 2nd Law?
a)
Gina's toy box
b)
Mike's toy box
109.
According to Newton’s second law of motion, force equals mass times ________.
a)
velocity
b)
inertia
c)
acceleration
d)
mass
110.
When you push on a door, the door pushes back with an equal and opposite force. These two forces are known as _________________________.
a)
mass & velocity force pairs
b)
unbalanced force pairs
c)
mass & acceleration force pairs
d)
action/reaction force pairs
111.
A soccer player kicks a ball that is at rest. What do you predict will happen?
a)
The ball will not move.
b)
The ball will lose acceleration.
c)
The ball will accelerate in the direction opposite the applied force.
d)
The ball will accelerate in the same direction as the applied force.
112.
F=ma
a)
Newton's
1st
Law of Motion
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
3rd
Law of Motion
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