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Forces and Newton's Laws Test Review

Total questions: 45

Worksheet time: 24mins

Name
Class
Date
1.
The amount of inertia an object has depends on its _____.
a)
force
b)
mass
c)
friction
d)
age
2.
Which of these is measured in newtons (N)?
a)
acceleration
b)
mass
c)
momentum
d)
friction
3.
_____ is the force that opposes the sliding motion of two surfaces that are touching each other.
a)
friction
b)
inertia
c)
gravity
d)
spring
4.
A group of students are playing tug-of-war. The students on both sides pull with equal force. This is an example of:
a)
unbalanced forces
b)
balanced forces
c)
acceleration
d)
displacement
5.
The sum of all the forces acting on an object is called the _____ force.
a)
net
b)
gravitational
c)
final
d)
inertial
6.
If the same force is applied to each of these balls, which one will have the SMALLEST acceleration?
a)
a
b)
b
c)
c
d)
d
7.
Which of the following is NOT an example of unbalanced forces acting on an object?
a)
An acorn falling from a tree, accelerating
b)
A car moving straight at 80 km/h
c)
A car changing speed from 50 km/h to 80 km/h
d)
A truck slowing down as it approaches a stop sign
8.
A person in a head-on car collision, who is not wearing a seatbelt, continues to move forward at the original speed of the car because of ____________.
a)
friction
b)
inertia
c)
gravity
d)
weight
9.
A feather will fall through the air more slowly than a brick because of _____ acting on it.
a)
gravity
b)
air resistance
c)
terminal velocity
d)
momentum
10.
The firefighter feels the hose pushing backwards on his hands. What is the most likely cause of this?
a)
The escaping water exerts an equal and opposite force on the hose
b)
Since the hose is at rest, it tends to stay at rest
c)
The force on the water equals the mass of the water times its acceleration
d)
The hose is very elastic
11.
The force that pulls all objects towards the Earth is
a)
friction
b)
gravity
c)
magnetic
d)
electrical
12.
A force that is transferred from a person or object to another object is
a)
applied
b)
spring
c)
friction
d)
gravity
13.
The force of attraction between positive and negative charges
a)
normal
b)
applied
c)
electrical
d)
tension
14.
The force that pushes objects up due to the fluid pressure of a liquid is
a)
air resistance
b)
normal
c)
buoyancy
d)
spring
15.
The force in strings, cables, ropes or wires when they are being pulled is
a)
applied
b)
normal
c)
gravity
d)
tension
16.
The force that is created when two surfaces rub against one another
a)
normal
b)
tension
c)
friction
d)
applied
17.
The force that pushes objects up when they are on a solid surface
a)
normal
b)
tension
c)
friction
d)
applied
18.
How much force is required to accelerate a 1000.0 kg car at a rate of 3 m/s²?
a)
3000N
b)
333.33N
c)
30N
d)
3000m/s
19.
If a 70.0 kg swimmer pushes off a pool wall with a force of 250 N, what is his acceleration?
a)
17,500N
b)
3.57 m/s2
c)
.28 m/s2
d)
none of the above
20.
A weightlifter raises a 200.0 kg barbell with an acceleration of 3.00 m/s². How much force does the weightlifter use to raise the barbell?
a)
66.67N
b)
66.67m/s2
c)
600N
d)
600m/s2
21.

Forces are expressed in

a)

kilograms

b)

Newtons

c)

meters

d)

liters

22.

A 5 kg object has less inertia than a ________ object. (1 kg = 1,000 g)

a)

4 kg

b)

2 kg

c)

6,000 g

d)

1,500 g

23.

According to Newton's first law of motion, a moving object that is not acted on by an unbalanced force will

a)

eventually come to a stop

b)

transfer its energy to another object

c)

accelerate in the absence of friction

d)

remain in motion

24.

Imagine that you are holding a 6 N book motionless in your hand. Which of the following is true?

a)

The book has a mass of 6 N

b)

The total downward force on the book is 12 N

c)

Your hand exerts an upward force of 6 N on the book

d)

This situation illustrates unbalanced forces.

25.

Friction is a force that

a)

opposes an object's motion

b)

does not exist when surfaces are very smooth

c)

decreases with larger mass

d)

All of the above

26.

If Earth's mass doubled, your weight would

a)

increase because gravity increases

b)

decrease because gravity increases

c)

increase because gravity decreases

d)

not change because you are still on Earth.

27.

Which law is associated with inertia

a)

First

b)

Second

c)

Third

28.

If you increase the force on an object what happens to the acceleration

a)

it increases

b)

it decreases

c)

it stays the same

29.

If you use the same force on a less massive object what happens to the acceleration

a)

it increases

b)

it decreases

c)

it stays the same

30.

Which law states force is dependent on the mass and acceleration of an object?

a)

First

b)

Second

c)

Third

31.

Which law explains why when you bump into something you fall backwards?

a)

First

b)

Second

c)

Third

32.
A push or pull exerted on an object
a)
Force
b)
Net force
c)
Momentum
d)
Speed
33.
The overall force on an object when all the individual forces acting on it are added together
a)
Momentum
b)
Net force
c)
Velocity
d)
Unbalanced force
34.
This is the amount of "stuff" in an object
a)
weight
b)
gravity
c)
mass
d)
volume
35.
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
36.
Keep in mind F=MA
If you are pushing a 1000 kg car at 0.5 m/s2, how many newtons would that be? 
a)
2000 N
b)
60N
c)
500 N
d)
12 N
37.

If mass increases, _____ also increases.

a)

mass

b)

gravity

c)

force

d)

distance

38.
Gravity attracts all objects towards one another.
a)
False
b)
True
c)
It depends
d)
I don't care
39.
You push on a tree with 20 N of force. If the tree doesn't move, the tree is pushing back on you with _____of force.
a)
20N 
b)
40N 
c)
10N 
d)
70N
40.
Imagine you travel to another planets. What will change as you walk around the surface of the planet- your mass or your weight?
a)
Mass
b)
Weight 
c)
Both 
d)
Neither 
41.
Inertia is the tendency of an object to resist a change in its ___________. 
a)
temperature
b)
shape
c)
size
d)
motion
42.
Which has more gravitational force acting upon it?
a)
a bus
b)
a train
c)
a car
d)
a person
43.
What force ultimately slows the roller coaster to a stop?
a)
Applied
b)
Normal
c)
Friction
d)
Magnetic
44.
An _______ force must act on an object for it to CHANGE it's motion
a)
balanced
b)
unbalanced
c)
gravitational
d)
electrical
45.
Force the opposes motion between 2 surfaces
a)
force
b)
Newton
c)
friction
d)
net force

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