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8th Grade Module 1

Total questions: 80

Worksheet time: 1hrs 12mins

Name
Class
Date
1.

An attractive force that exists between all objects that have mass.

a)

vector

b)

speed

c)

gravity

d)

friction

2.

The gravitational force exerted on an object is _____.

a)

field

b)

weight

c)

mass

d)

gravity

3.

The starting point you choose to describe the location or position of an object is _____.

a)

motion

b)

speed

c)

reference point

d)

contact force

4.

The difference between the initial or starting position and the final position is _____.

a)

Newton's second law of motion

b)

The law of action and reaction

c)

net force

d)

displacement

5.

An object at rest will stay at rest, and and object in motion will stay in motion unless an unbalanced force acts on the object. This is stated in which law?

a)

Newton's first law

b)

Newton's second law

c)

Newton's third law

d)

normal force

6.

The acceleration of an object is equal to the net force exerted on the object divided by the object's mass. This is stated in which law?

a)

Newton's first law

b)

Newton's second law

c)

Newton's third law

d)

normal force

7.

When an object applies a force on another object, the second object applies a force of the same strength on the first object, but the force is in the opposite direction. This is stated is which of Newton's laws?

a)

Newton's first law

b)

Newton's second law

c)

Newton's third law

d)

normal force

8.

A push or pull on an object is _____.

a)

speed

b)

force

c)

acceleration

d)

vector

9.

A force that one object applies to another object without touching it is _____.

a)

normal force

b)

force pair

c)

acceleration

d)

noncontact force

10.

A measure of the change in velocity during a period of time is _____.

a)

acceleration

b)

vector

c)

displacement

d)

force

11.

A quantity that has both magnitude and direction is a _____.

a)

velocity

b)

vector

c)

acceleration

d)

force pair

12.

The forces two objects apply to each other?

a)

force pair

b)

friction

c)

acceleration

d)

vector

13.

The speed and direction of a moving object is _____.

a)

speed

b)

force

c)

friction

d)

velocity

14.

The combination of all forces acting on an object is _____.

a)

force

b)

speed

c)

net force

d)

force pair

15.

A contact force that resists the motion of two surfaces is _____.

a)

friction

b)

force pair

c)

vector

d)

speed

16.

A push or pull of an objects that are touching each other.

a)

noncontact force

b)

contact force

c)

net force

d)

speed

17.

The tendency of an object to resist a change in motion.

a)

speed

b)

inertia

c)

time

d)

vector

18.

The SI unit for mass is _____.

a)

kg

b)

N

c)

m/s2

d)

g

19.

The SI unit for force is _____.

a)

kg

b)

N

c)

m/s2

d)

g

20.

The SI unit for acceleration is _____.

a)

kg

b)

N

c)

m/s2

d)

g

21.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
22.

If these boys are pulling with the exact 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.

23.
Which force produces a change in motion?
a)
unbalanced force
b)
balanced force
c)
gravitational force
d)
frictional force
24.
It takes more force to accelerate the iron man on the left than the iron man on the right because the iron man on the left has more mass. This best describes
a)
Newton's first law, the law of inertia
b)
Newton's second law, the law of acceleration
c)
Newton's third law, the law of action reaction 
d)
The law of universal gravitation
25.
The formula 
? = mass x acceleration
or 
? = m x a 
is used to find 
a)
Force
b)
Velocity
c)
Momentum
d)
Gravity
26.
An automobile you are riding in suddenly stops, but you continue to go forward.
a)
Newton's
1st
Law of Motion
b)
Newton's
2nd
Law of Motion
c)
Newton's
3rd
Law of Motion
27.

You push off and the boat moves the opposite direction. This is Newtons ____ law.

a)

1st

b)

2nd

c)

3rd

28.

If you kick a soccer ball with 1000 Newtons of force it will go a lot farther than kicking a bowling ball with the same force.

a)

1st

b)

2nd

c)

3rd

29.
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
30.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
31.
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
32.
What Newtons law does this picture represent
a)
Newtons 2nd law 
b)
Law of gravity 
c)
Newtons 1st law
d)
Newtons 5th law
33.
A greater applied force is required to move an object with a greater mass than one with a smaller mass.
a)
True
b)
False
34.
When the net force is zero, the forces on an object are balanced. True or false.
a)
true
b)
false
35.
What is the net force
a)
10 N
b)
0 N
c)
25 N
d)
1 N
36.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
37.
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 
38.
Newton's third law states that any action will have a(n) _______ and ______ reaction
a)
Equal and similar
b)
Equal and opposite
c)
Equal and different
d)
Greater and opposite
39.

You push against a wall and the wall is pushing back on you.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

40.

A 20 kg bike accelerates at 10 m/s2. What was the force?

a)

30 Newtons

b)

2 Newtons

c)

200 Newtons

d)

10 Newtons

41.

An object in motion stops when.....

a)

It falls of an edge.

b)

it is acted upon by an outside force.

c)

It is eaten

d)

It never stops

42.
What two measurements are necessary for calculating speed?
a)
Mass and time
b)
Temperature and mass
c)
Mass and distance
d)
Distance and time
43.
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
44.
If a 10 kilogram object had a force of 50 newton's applied to it, what would its acceleration be?
a)

15 m/s2

b)

5 m/s2

c)

.5 m/s2

d)

10 m/s2

45.

What is the equation for speed?

a)

Speed = distance/time

b)

Speed = time/distance

c)

Speed = distance x time

d)

Speed = time x distance

46.

What do you need to know about an object to calculate its velocity?

a)

Speed and time

b)

Speed and distance

c)

Speed and direction

d)

Time and direction

47.

A bird flying south at 64 km/hr is an example of:

a)

Speed

b)

Velocity

48.

The International Space Station orbiting the Earth from west to east at 7.66 km/s is an example of:

a)

Speed

b)

Velocity

49.

A robot traveling 2 m/s is an example of:

a)

Speed

b)

Velocity

50.

A cheetah runs 220 km in 2 hours. What is the cheetah's speed?

a)

110 km/hr west

b)

110 km/hr

c)

440 km/hr

d)

440 km/hr west

51.

  1. Two people are pulling on a chain in opposite directions with forces of 500 N and 600 N.  The forces would best be described as ___.

a)

unbalanced force

b)

balanced force

c)

gravitational force

d)

action-reaction force

52.

  1. A test booklet is sitting at rest on a desk. Compared to the force of the booklet on the desk, the force of the desk on the booklet is the same.

a)

true

b)

false

53.

  1. A student walks 20 m north, 10 m south, and then 3 m north.  To have a displacement of 0 m, the student should walk ____ m toward the ____.

a)

13; south

b)

13; north

c)

20; south

d)

20; north

54.

Reference point can also be described as what?

a)

An ending point

b)

A starting point

c)

A description

d)

A location

55.

What is the changing of position over time?

a)

motion

b)

reference point

c)

acceleration

d)

speed

56.

_______ is the length of the path between two points.

a)

distance

b)

reference

c)

statistic

d)

law

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.

Which would NOT make a good reference point?

a)

Ross N Robinson Middle School

b)

A chair

c)

A moving child

d)

the flag pole

59.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
60.

What is this graph showing?

a)

Constant Speed

b)

Acceleration (speeding up)

c)

Negative Acceleration (slowing down)

d)

No motion

61.

Be careful!!!!! This is a speed-time graph


What does this line represent?

a)

constant speed

b)

not moving

c)

speed increasing

d)

speed increasing at a constant rate

62.

Any change in SPEED or DIRECTION is referred to as _____.

a)

Acceleration

b)

Speed

c)

Velocity

d)

Motion

63.
Why is the net force 0 in the image?
a)
Because the elephants are the same size
b)
Because they are both pulling the same amount of force in opposite directions
c)
Because they are elephants
d)
Because they are pulling away from each other.
64.
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
65.
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
66.

What is the relationship between force and mass?

a)

inverse relationship

b)

direct relationship

67.

What is the relationship between force and acceleration?

a)

inverse relationship

b)

direct relationship

68.

What is the relationship between mass and acceleration?

a)

inverse relationship

b)

direct relationship

69.

If acceleration of an object is zero, that means there are no forces acting on the object.

a)

true

b)

false

70.

What is the net force of one person pulling 25 N to the west and another person pulling 25 N to the west?

a)

0 N net force

b)

25 N net force to the west

c)

50 N net force to the west

d)

625 N net force to the west

71.

Newton's 3rd Law of Motion is also known as the Law of _____.

a)

inertia

b)

acceleration

c)

action and reaction

72.

Newton's 2nd Law of Motion is also known as the Law of _____.

a)

inertia

b)

acceleration

c)

action and reaction

73.

The amount of ground that is covered is known as _____.

a)

distance

b)

displacement

74.

A scalar quantity includes _____.

a)

magnitude (size)

b)

direction

c)

both magnitude and direction

d)

neither magnitude nor direction

75.

Average velocity and Instantaneous velocity are always the same.

a)

True

b)

False

76.

Average velocity and Instantaneous velocity are the same if the object has constant motion.

a)

True

b)

False

77.

The speedometer of a car is reading the car's _____ speed.

a)

average

b)

instantaneous

78.
Velocity is 
a)
speed
b)
direction
c)
speed with a direction
79.

17 m/s, East

a)

Vector

b)

Scalar

80.

Displacement is

a)

position of object

b)

final position minus initial position

c)

distance divided by time

d)

initial position plus final position

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