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Newton's Laws Quiz

Total questions: 30

Worksheet time: 37mins

Name
Class
Date
1.

What explains why objects resist changes in their state of motion?

a)

gravity

b)

inertia

c)

force

d)

friction

2.

Isaac Newton developed these 3 laws concerning ______________.

a)

Velocity.

b)

Mass

c)

Acceleration.

d)

Motion

3.
A person steps out of the boat and onto the dock.  As the person moves forward onto the dock, the boat moves backward.  Which statement best describes the backward motion of the boat as the person steps forward?
a)
For every action there is an equal and opposite reaction.
b)
Every mass exerts a force on every other mass.
c)
An object at rest tends to stay at rest.
d)
Friction opposes the motion of an object.
4.
An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which of these best explains this situations
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
d)
Conservation of momentum
5.
A force of 90N is applied to each cart below, which one will accelerate the fastest?
a)
Cart 1
b)
Cart 2
c)
Cart 3 
d)
Cart 4
6.
If a 10 kilogram object had a force of 50 newton's applied to it, what would its acceleration be?
a)
15 m/s^2
b)
5 m/s^2
c)
.5 m/s^2
d)
10 m/s^2
7.

An inflated balloon released from rest moves horizontally.

The law that best explains this event is

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

Law of Gravity

8.

True or False: objects with greater mass require more force to accelerate when compared to objects with less mass.

a)

True

b)

False

9.
Name the missing force...
a)
frictional force
b)
weight force
c)
thrust
d)
buoyant force
10.
 What is the unit called that measures force?
a)
weight
b)
meter
c)
Newton
d)
kilogram
11.

A dictionary weighing 15 Newtons is placed on a desk.

What is the force that the desk exerts on the dictionary?

a)

none

b)

15 N

c)

1.5 N

d)

150 N

12.
What is the force that causes objects to fall to Earth?
a)
Air resistance
b)
Gravity
c)
Water resistance
d)
Pressure
13.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
14.

Suppose that an astronaut throws a baseball in outer space at a location far from significant influences of gravity and air resistance. One would expect that the baseball would ____.

a)

eventually stop since all objects ultimately "lose their steam"

b)

eventually stop as its inertia slowly becomes used up

c)

continue in motion with the same speed and direction

d)

either a, b, or c -- depending on whether the astronaut continues to push it

15.

A skateboard rolls down a hill, reaches the level surface and eventually comes to a stop. The fact that the skateboard ultimately stops is best explained by ____.

a)

an unbalanced force would be required to keep the sled moving forward at constant speed

b)

the presence of an unbalanced force (e.g., friction) can cause a moving object to stop

c)

the presence of inertia causes it to stop

d)

the natural tendency of any object is to ultimately stop

16.

More mass = More inertia

a)

True

b)

False

17.

When Izzy and Zoe pull on the rope with the same amount of force, the forces are _____.

a)

increased

b)

unbalanced

c)

balanced

d)

decreased

18.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move up. 
19.

If a cannonball were launched into deep space (no friction or gravitational effects), how much force would be needed to keep the ball moving with a constant velocity?

a)

A force equal to its weight.

b)

No force would be needed.

c)

A force large enough to balance friction.

d)

150-N

20.

What is the name of the missing force?

a)

applied force

b)

gravity

c)

friction

d)

normal force

21.

What is an Applied Force?

a)

The distance

b)

Mass

c)

A push or pull

d)

Acceleration

22.

The force that keeps objects on top of surfaces instead of letting them sink into the surface is known as:

a)

normal

b)

abnormal

c)

static

d)

inertia

23.

Whenever an object is moving, there is always this force opposing the motion:

a)

inertia

b)

momentum

c)

friction

d)

applied force

24.

The force exerted by ropes and chains is called

a)

tension

b)

normal

c)

elastic

d)

mechanical

25.

The down-arrow in this diagram is most-likely:

a)

gravity

b)

normal

c)

a push or pull

d)

friction

26.

If this object were moving right, the left-arrow in this diagram is most-likely:

a)

gravity

b)

normal

c)

a push or pull

d)

friction

27.
Name the missing force....
a)
weight force
b)
normal force
c)
frictional force
d)
tension force
28.
Name the missing force...
a)
tension force
b)
frictional force
c)
normal force
d)
spring force
29.

The car in the picture is moving at a constant velocity. What forces does the car experience?

a)

Gravity

b)

Gravity and Normal

c)

Gravity, Normal, and Friction

d)

Gravity, Normal, Friction, and Applied

30.
Match description with free-body diagram.
a)
A book is at rest on a tabletop.
b)
A gymnast holding onto a bar, is suspended motionless in mid-air. The bar is supported by two ropes that attach to the ceiling. Diagram the forces acting on the combination of gymnast and bar.
c)
An egg is free-falling from a nest in a tree. Neglect air resistance.
d)
A flying squirrel is gliding (no wing flaps) from a tree to the ground at constant velocity. Consider air resistance.