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Forces Review (Newton's 1st and 2nd Law)

Total questions: 36

Worksheet time: 47mins

Name
Class
Date
1.
What is a Force?
a)
The distance
b)
Mass
c)
A push or pull
d)
Give me a  failing grade 
2.
An _______ force must act on an object for it to CHANGE it's motion
a)
balanced
b)
unbalanced
c)
gravitational
d)
electrical
3.

If the net force is equal to zero, the forces acting on the object are

a)

balanced

b)

unbalanced

4.
Balanced forces do not change the objects speed or 
a)
direction
b)
distance 
c)
time
d)
mass
5.
Forces that have a net force of zero ( the object is still).
a)
Balanced force
b)
Unbalanced force
6.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
7.
Jonny and Patty are pushing against a basketball. Both of them push against theball on opposite sides with a force of 20 N to keep the ball still. What is the net force?
a)
400 N
b)
24 N
c)
0 N
d)
40 N
8.
What is the net force in this picture?
a)
50 Newtons to the right
b)
950 Newtons to the right
c)
950 Newtons to the left
d)
50 Newtons to the left
9.
Which one is balanced?
a)
top
b)
bottom
c)
both
10.

A contact force is from

a)

objects physically touching

b)

far apart objects

c)

not touching object

d)

always a pull

11.

A non-contact force is between

a)

two objects that aren't touching

b)

two objects that are touching

c)

the ground and wheels

d)

you and me

12.

The three examples pictured are of

a)

Non-contact Forces

b)

Contact Forces

13.

The force between the phone and the mount is a

a)

contact force

b)

non-contact force

14.

Gravity is a

a)

Contact Force

b)

Myth

c)

Non-contact Force

15.

Friction is a

a)

Contact Force

b)

Myth

c)

Non-contact Force

16.

You are pulled to the surface of the earth due to the force of _________________

a)

gravity

b)

friction

c)

normal force

d)

contact force

17.

Air Resistance Force

a)

Contact Force

b)

Non-Contact Force

18.

Which describes Newton's 2nd Law?

a)

An object at rest will stay at rest, and object in motion will stay in motion

b)

for every action, there is an equal and opposite reaction

c)

acceleration is produced when a force acts on a mass

19.

Newton's 1st Law states,________________________.

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

20.

Why does an truck have more inertia than a bicycle?

a)

it has more mass

b)

it has more volume

c)

it is not as aerodynamic

21.

What is Inertia?

a)

motion

b)

An object's resistance to change in motion

c)

friction

d)

An object's resistance to motion

22.

Your car has a mass of 2000 kg and a force of 4000 N. How fast will it accelerate?

a)

20 m/s2

b)

0.5 m/s2

c)

2 m/s2

d)

120 N

23.

A 25 kg bike accelerates at 10 m/s2. What was the force?

a)

250 N

b)

2.5 N

c)

25 N

d)

15 N

24.

If an object was accelerating at 5 m/s2, and a force of 10 newtons was required to accelerate it, what was the object's mass?

a)

50 kg

b)

2 kg

c)

0.5 kg

d)

5 kg

25.
The force of gravity acting on an object is the object's ______.
a)
mass
b)
matter
c)
weight 
d)
terminal velocity 
26.

If an astronaut has a mass of 60 kg on earth, what would their mass be on the moon under 1/6th gravity?

a)

60 kg

b)

10 kg

c)

60 N

d)

10 N

27.
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
28.

When two equal forces act in opposite directions on an object, they are called ______________________.

a)

frictional force

b)

balanced force

c)

centripetal force

d)

gravitational force

29.

The picture is an example of Newton's...

a)

1st Law

b)

2nd Law

c)

3rd Law

30.
A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/sec/sec. What is it's force?
a)
50 Newtons
b)
5 Newtons
c)
20 Newtons
d)
9.5 Newtons
31.

An object is being pulled to the right with a 500N force, while a force of 250N is pulling it to the left. This unbalanced force causes it to accelerate at a rate of 5 m/sec2. What is the mass of the object?

a)

250kg

b)

1,250kg

c)

50kg

d)

100kg

32.
You’re apparent weight is smaller when…
a)
You accelerate upwards
b)
You accelerate downwards
c)
You accelerate to the right
d)
You accelerate to the left
33.
If an elevator  is going up with acceleration, the apparent weight of a body is
a)
you feel lighter 
b)
you don’t feel your weight
c)
you feel heavier 
d)
 you feel your true weight
34.
if the cable   of the elevator breaks  
a)
acceleration is same as gravitational acceleration.
b)
acceleration is greater than  gravitational acceleration.
c)
acceleration is smaller than gravitational acceleration.
d)
no acceleration 
35.
Weight is 
a)
force of an object on another
b)
Force of an object on gravity
c)
Force of gravity on an object
d)
Force of attraction
36.
mass of a car is 2000 Kg. its weight is
a)
20,000N
b)
20,000Kg
c)
2000N
d)
200N

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