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FBD, Net Force, 2nd Law

Total questions: 30

Worksheet time: 1hrs 5mins

Name
Class
Date
1.

What type of force is this man using to push his grocery cart?

a)

Normal Force

b)

Gravity

c)

Air Resistance

d)

Applied Force

2.

What is the net force?

a)

3 N

b)

3 N, right

c)

17 N, right

d)

3 N, left

3.
Who wins the tug of war with what net force?
a)
The person on the left with 20 N
b)
The person on the left with 80 N
c)
The people on the right with 20 N
d)
The people on the right with 100 N
4.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
5.

What is the unit to MEASURE force?

a)

Kilogram

b)

Meter

c)

Pounds

d)

Newton

6.

A ____________ is a push or a pull on an object.

a)

friction

b)

force

c)

magnet

d)

gravity

7.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
8.

Forces that have a net force of zero Newtons

a)

Balanced force

b)

Unbalanced force

9.

What will cause an object to change its motion?

a)

Applied forces

b)

Balanced forces

c)

Unbalanced forces

10.
Calculate the Net Force. 
a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
11.

If both forces are going in the same direction you should______ those forces

a)

Add

b)

Subtract

c)

Divide

d)

Multiply

12.

When forces are going in the opposite direction of each other you should do what do find the net force

a)

Subtract

b)

Add

c)

Divide

d)

Multiply

13.

Calculate the net force of the object in the image shown.

a)

20N, left

b)

5N, right

c)

5N, left

d)

15N, right

14.
Is this a balanced or unbalance force?
a)
Balanced
b)
Unbalanced
c)
Neither one
d)
Both
15.

Which direction will the object accelerate?

a)

Up

b)

Down

c)

Right

d)

Left

16.
Is this a balanced or unbalanced force?
a)
Balanced
b)
Unbalanced
c)
Neither
d)
Both
17.

If a force causes an object to start moving, stop moving, or change speed it's considered a(an)__________________force.

a)

Balanced

b)

Unbalanced

c)

Magnetic

d)

Gravitational

18.

According to the 2nd Law of Motion, the acceleration of an object is inversely proportional to

a)

the net force

b)

the velocity

c)

the mass

d)

the inertia

19.
What law is best described by inertia?
a)
1st
b)
2nd
c)
3rd
d)
law of conservation of mass
20.
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
21.

Name the missing force...

a)

Frictional force

b)

Weight force

c)

Tension force

d)

Normal force

22.
Name the missing force....
a)
Weight force
b)
Normal force
c)
Frictional force
d)
Tension force
23.
Name the missing force...
a)
tension force
b)
gravitational force
c)
normal force
d)
applied force
24.

Which FBD is most appropriate for describing the following situation?


A book sits on top of the table, motionless.

a)
b)
c)
d)
25.
Name the missing force...
a)
weight force
b)
normal force
c)
applied force
d)
frictional force
26.
Name the missing force...
a)
applied force
b)
weight force
c)
tension force
d)
drag
27.

A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/s2. What is it's force?

a)

50 Newtons

b)

5 Newtons

c)

20 Newtons

d)

9.5 Newtons

28.

A cannonball with a mass of 10 kg is flying at an acceleration of 5 m/s2. What is it's force?

a)

50 Newtons

b)

5 Newtons

c)

20 Newtons

d)

9.5 Newtons

29.

If you push an object with 3x the force, what happens to the objects acceleration?

a)

3x larger acceleration

b)

2x larger acceleration

c)

1/3 smaller acceleration

d)

3x small acceleration

30.

If you object you are pushing becomes 4x bigger(mass), what happens to the objects acceleration if you push with the same force?

a)

4x as fast

b)

2x as fast

c)

1/2 as fast

d)

1/4 as fast