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Forces and Newton's Laws Test

Total questions: 41

Worksheet time: 26mins

Name
Class
Date
1.

Forces are expressed in

a)

kilograms

b)

Newtons

c)

meters

d)

liters

2.

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

3.

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

4.

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.

5.

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

6.

Rolling friciton

a)

is usually less than sliding friction

b)

makes it difficult to move objects on wheels

c)

s usually greater than sliding friction

d)

is the same as fluid friction

7.

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.

8.

Which law is associated with inertia

a)

First

b)

Second

c)

Third

9.

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

a)

it increases

b)

it decreases

c)

it stays the same

10.

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

11.

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

a)

First

b)

Second

c)

Third

12.

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

a)

First

b)

Second

c)

Third

13.
If a 10 kilogram object accelerates suddenly at 15 m/s^2, how much force was applied to the object?
a)
150 Newtons
b)
15 Newtons
c)
150 kilograms
d)
100 kilograms
14.
A push or pull exerted on an object
a)
Force
b)
Net force
c)
Momentum
d)
Speed
15.
Forces that produce a nonzero net force, which changes an objects motion.
a)
Force
b)
Momentum
c)
Unbalanced Force
d)
Speed
16.
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
17.
The force that pulls objects toward each other
a)
Momentum
b)
Gravity
c)
Velocity
d)
Speed
18.
This is the amount of "stuff" in an object
a)
weight
b)
gravity
c)
mass
d)
volume
19.
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
20.
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
21.
Which is Newtons first law
a)
Force is equal to an objects mass times its velocity 
b)
an object in motion stays in motion or an object at rest stays at rest unless acted on by an outside force.
c)
Law of the land
d)
For every action there is an equal and opposite reaction
22.
Which is Newtons third law
a)
Force is equal to an objects mass times its velocity 
b)
an object in motion stays in motion or an object at rest stays at rest unless acted on by an outside force.
c)
Law of inertia
d)
For every action there is an equal and opposite reaction
23.
Which is Newtons second law
a)
Force is equal to an objects mass times its velocity 
b)
an object in motion stays in motion or an object at rest stays at rest unless acted on by an outside force.
c)
law of inertia
d)
For every action there is an equal and opposite reaction
24.

If mass increases, _____ also increases.

a)

mass

b)

gravity

c)

force

d)

distance

25.
Gravity attracts all objects towards one another.
a)
False
b)
True
c)
It depends
d)
I don't care
26.
What is a friction force  acting on an NON- moving object.
a)
Static friction 
b)
Fuild friction 
c)
Rolling friction 
d)
Sliding Friction 
27.
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
28.
What is a friction force acting upon an object on wheels?
a)
Static 
b)
Sliding 
c)
Rolling 
d)
Fluid 
29.
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 
30.
Inertia is the tendency of an object to resist a change in its ___________. 
a)
temperature
b)
shape
c)
size
d)
motion
31.
When mass increases then gravity
a)
Decreases
b)
Increases
c)
Stays the same
32.
What does the strength of gravity between two objects depend upon?
a)
Mass & distance
b)
Mass & weight
c)
Gravity & inertia
d)
Inertia & mass
33.
Which has more gravitational force acting upon it?
a)
a bus
b)
a train
c)
a car
d)
a person
34.
What force ultimately slows the roller coaster to a stop?
a)
Applied
b)
Normal
c)
Friction
d)
Magnetic
35.
An _______ force must act on an object for it to CHANGE it's motion
a)
balanced
b)
unbalanced
c)
gravitational
d)
electrical
36.
A type of friction that occurs when air pushes against a moving object causing it to decelerate.
a)
surface area
b)
air resistance
c)
velocity
d)
gravity 
37.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
38.
What does friction produce?
a)
light
b)
sound
c)
heat
d)
gravity
39.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
40.
Force the opposes motion between 2 surfaces
a)
force
b)
Newton
c)
friction
d)
net force
41.
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

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