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Net Force and Newton's Laws

Total questions: 33

Worksheet time: 3hrs 11mins

Name
Class
Date
1.
What is a force?
a)
the PUSH or PULL on an object 
b)
The MOTION an object creates
c)
The objects HITTING one another
d)
Going REALLY FAST
2.
Which one is balanced?
a)
top
b)
bottom
c)
both
3.
What is the unit for FORCE? 
a)
N (Newtons)
b)
lbs (pounds)
c)
g (grams)
d)
m/s (meters per second)
4.
If there are two forces going in the SAME direction, you would ...?
a)
(-) Subtract the forces
b)
(+) Add the forces
c)
Neither
d)
(x) Multiply
5.
If the net force is 0 the object will ... 
a)
CHANGES motion
b)
STAY the SAME, NOT Move
6.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
7.
What is the net force?
a)
65 N left
b)
65 N right
c)
35 N left
d)
35 N right
8.
What is the net force?
a)
5.5 N left
b)
5.5 N right
c)
2.5 N left
d)
2.5 N right
9.
Which direction will the soccer ball go and with how much force? 
a)
200N Left 
b)
1.66N Left 
c)
50N Left 
d)
12N Left 
10.
a)
1st
b)
2nd
c)
3rd
d)
law of motion
11.
A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
12.
A person not paying attention while skateboarding hits a rock. The skateboard stops...they don't.
a)
The Law of Inertia (1st law)
b)
The Law of Acceleration (2nd law)
c)
The Law of Conservation of Momentum
d)
Action Reaction Law (3rd law)
13.
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 
14.
A person is pushed forward into their seatbelt when a car stops
a)
1st
b)
 2nd
c)
2 and 3
d)
3rd 
15.
A 20 kg bike accelerates at 10 m/s2.  what was the force
a)
25 Newtons
b)
20 Newtons
c)
200 Newtons
d)
10 Newtons
16.
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
17.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced 
a)
12 N Right  No
b)
4 N Left  No
c)
12 N Right  Yes
d)
4 N Left  Yes
18.
You hit a wall with a stick.  The equal but opposite reaction is _____
a)
the wall pushes against you
b)
the stick pushes against you
c)
you push against the stick
d)
the wall pushes against the stick
19.
What is the acceleration of an object traveling at a constant velocity?
a)
10 m/s2
b)
0 m/s2
c)
250 m/s2
d)
20 m/s2
20.
What are the appropriate units to describe acceleration?
a)
m/s
b)
m/s2
c)
cm
d)
there are no units associated with acceleration
21.
a)

1

b)

2

c)

3

d)

All of the above

22.
a)

1

b)

2

c)

3

d)

All of the above

23.
a)

1

b)

2

c)

3

d)

All of the above

24.
a)

1

b)

2

c)

3

d)

All of the above

25.

Object tendency to resist change

a)

Friction

b)

Inertia

c)

Forcé

d)

Gravity

26.

Which is an example of the law of inertia?

a)

A rocket taking off from Earth

b)

A crash test dummy flies through the windshield in a collision

c)

A small rock skips on a pond faster than a large rock

27.

Which is an example of the law of acceleration?

a)

A rocket taking off from Earth

b)

A crash test dummy flies through the windshield in a collision

c)

A small rock skips a pond faster than a large rock

28.

What is the formula for the law of acceleration?

a)

M = F x A

b)

F = M x A

c)

A = F x M

29.

What is the force of a baseball that has a mass of 142 kg and has an acceleration of 30 m/s2?

a)

1 N

b)

2 N

c)

4260 N

d)

3 N

30.

Your car has a mass of 2500 kg and a force of 5000 N. How fast will it accelerate?

a)

1 m/s2

b)

2 m/s2

c)

3 m/s2

d)

4 m/s2

31.

Which is an example of the law of action/reaction?

a)

A rocket taking off from Earth

b)

A crash test dummy flies through the windshield in a collision

c)

A small rock skips a pond faster than a large rock

32.

Which example best describes Newton’s 3rd Law?

a)

Paddling a canoe to make the boat move

b)

A large truck takes longer to slow down than a car

c)

Falling forward in a train that is slowing down quickly

33.

Which is an example of the law of action/reaction?

a)

When you let go of a balloon it flies away

b)

A soccer ball accelerates faster than a bowling ball when kicked.

c)

Blood rushes from your head to your feet when quickly stopping on an descending elevator.

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