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Newton's Laws Review

Total questions: 25

Worksheet time: 48mins

Name
Class
Date
1.
Newton's 3rd Law implies that....
a)
forces always come in pairs.
b)
forces never come in pairs.
c)
forces act only one at a time.
d)
none of these is correct.
2.
_______ is a resistance to change in motion.
a)
Force
b)
Gravity
c)
Inertia
d)
Momentum
3.
Friction ________________ motion.
a)
opposes
b)
encourages
c)
accelerates
d)
decelerates
4.
Mass is always measured in
a)
Newtons
b)
m/s2
c)
kg
d)
lbs
5.
Force is measured in...
a)
kg
b)
lbs
c)
N
d)
m/s2
6.

Newton's second law states:

a)

force is related to acceleration

b)

force is acceleration

c)

force resists acceleration

d)

force is not related acceleration

7.
Which of the following is also known as "the law of inertia"?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
Universal Gravitation
8.
Another name for the force of gravity is..
a)
mass
b)
weight
c)
friction
d)
force
9.
Friction when in the air, is called...
a)
friction
b)
air resistance
c)
resistance
d)
fluid mechanics
10.

According to Newton's 3rd Law, the set of forces or actions that work together; one as the result of another, is...

a)

action force

b)

reaction force

c)

action-reaction pair

d)

the dynamic duo

11.
"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
12.
Any push or pull on an object.
a)
force
b)
velocity 
c)
inertia
d)
momentum
13.
The combination of all the forces acting on an object is the...
a)
net force
b)
action force
c)
reaction force
d)
balance force
14.
A 20 kg bike accelerates at 10 m/s2.  what was the net force
a)
25 Newtons
b)
20 Newtons
c)
200 Newtons
d)
10 Newtons
15.
The tendency of an object to stay in motion or at rest is called 
a)
velocity
b)
acceleration
c)
speed
d)
inertia
16.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
17.
An object is moving to the right at a constant velocity. What will happen if a force of 20N starts acting on it in the opposite direction?
a)
The object’s velocity will increase.
b)
The object’s velocity will decrease.
c)
The object will come to a stop.
d)
The object will move at the same velocity.
18.

If you increase the mass on an object while the force remains the same, its acceleration

a)

decreases

b)

stays the same

c)

also increases

d)

stops

19.

If you increase the force on an object, its acceleration

a)

decreases

b)

stays the same

c)

also increases

d)

stops

20.
Objects with greater _________ also have greater inertia.
a)
speed
b)
mass
c)
temperature
d)
friction
21.

For every force, there is an equal and opposite force. What is OPPOSITE?

a)

The size of the forces.

b)

The direction of the forces.

c)

The type of forces.

d)

The motion of the objects.

22.

A force is a hammer pushing down on a nail. What is its "equal and opposite" force?

a)

The nail being pushed down into the wood.

b)

The air pushing up on the hammer.

c)

The hand pushing down on the hammer.

d)

The nail pushing up on the hammer.

23.

Air is rushing out of a balloon. The balloon pushes air to the left. What is the "equal and opposite" force?

a)

The balloon gets smaller.

b)

The balloon moves to the left.

c)

Air pushes the balloon upward.

d)

Air pushes the balloon to the right.

24.

Which object has the most inertia?

a)

A baseball (0.15 kg) moving at 40 m/s.

b)

A car (1000 kg) that is not moving.

c)

A cannon ball (5 kg) moving at 100 m/s.

d)

A student (60 kg) sitting in a desk.

25.

The unit for acceleration is...

a)

Newton (N)

b)

kilogram (kg)

c)

meters per second squared (m/s2)

d)

meters per second (m/s)