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Newtons Laws

Total questions: 33

Worksheet time: 3hrs 32mins

Name
Class
Date
1.
What law is best described by inertia?
a)
1st
b)
2nd
c)
3rd
d)
law of conservation of mass
2.

What law is best described

a)

1st

b)

2nd

c)

3rd

d)

law of motion

3.

What is Newton's 2nd Law ?

(a)  

4.

What law is best described

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)

5.
What Unit do we Measure Force in? 
a)
Newtons
b)
Joules
c)
Force
d)
Kilograms
6.
With unbalanced forces, the object will move in the direction that the _______ force is being applied.
a)
larger 
b)
smaller 
c)
equal 
d)
less
7.

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 unless acted upon by a force.

d)

Friction

8.
A person is pushed forward into their seatbelt when a car stops
a)
1st
b)
 2nd
c)
2 and 3
d)
3rd 
9.
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
10.
Which one is balanced?
a)
top
b)
bottom
c)
both
d)
neither
11.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
12.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
13.

What type of friction is not moving?

a)

static

b)

sliding

c)

fluid

d)

rolling

14.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
15.

A type of friction that occurs when air pushes against a falling object.

a)

surface area

b)

air resistance

c)

sliding

d)

gravity

16.
If a 10 kilogram object accelerates suddenly at 15 m/s^2, how much force was applied to the object?
a)
150 Newtons
b)
15 Newtons
c)
150 kilograms
d)
100 kilograms
17.

If a force of 50 Newton's was applied to an object with a mass of 500 grams, what will the object's acceleration be?

a)

10 m/s^2

b)

.1 m/s^2

c)

100 m/s^2

d)

1 m/s^2

18.
If a force of 26 N is exerted on two balls, one with a mass of 0.52 kg and the other with a mass of 0.78 kg, which ball will have the greater acceleration?  (F=ma)
a)
The one with a mass of .78 kg will have the greatest acceleration.
b)
The one with a mass of .52 kg will have the greatest acceleration.
c)
They will both accelerate at the same rate.
19.
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
20.

Unit of mass

a)

m/s^2

b)

m/s

c)

newtons

d)

kg

21.
The masses of four objects are given in this table. If all objects are struck with the same amount of force, which one will have the greatest acceleration?
a)
Object 1
b)
Object 2
c)
Object 3
d)
Object 4
22.

A basketball with a mass of 0.60 kg is accelerated with a force of 10.8 N. What is the acceleration of the basketball to the nearest m/s2?

a)

16 m/s2

b)

17 m/s2

c)

18 m/s2

d)

19 m/s2

23.

Force always come in________

a)

waves

b)

triplets

c)

pairs

24.

The illustration shows the forces in Newtons (N) acting on three different blocks. Which blocks will move under these conditions?

a)

Blocks 1 and 2

b)

Blocks 2 and 3

c)

Blocks 1, 2, and 3

d)

Blocks 1 and 3

25.

A push or pull that can change an object’s motion

a)

Force

b)

Motion

c)

Reference Frame

d)

Direction

26.

When a cannon fires a cannonball we observe Newton's third law. Which is the reaction force?

a)

The cannon moving forward

b)

The cannon moving backwards

c)

The cannonball moving backwards

d)

The cannonball moving forward

27.
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.
28.

An object travelling at terminal velocity moves at a steady speed.

a)

True

b)

False

29.

What is friction?

a)

the movement of objects over time

b)

the speeding up of motion when an object slides on a slippery floor

c)

the resistance of motion when one objects moves in the opposite direction of another

30.

When a person is skateboarding, their leg is pushing BACKWARD against the ground. In turn, the ground pushes __________ against their foot allowing them to skateboard.

a)

DOWN

b)

UP

c)

FORWARD

d)

BACKWARD

31.

What is the NET FORCE of this diagram?

a)

17 N, right

b)

17 N, left

c)

23 N, right

d)

12 N, up

32.

if this box has a mass of 80 kg. What is its acceleration

a)

2 N

b)

2 m/s^2

c)

0.5 N

d)

0.5 m/s^2

33.

If this box has a mass of 35 kg. What is its acceleration and direction?

a)

0.57 m/s^2 to the left

b)

0.14 m/s^2 to the left

c)

1.4 m/s^2 to the right

d)

1.75 m/s^2 tot he right

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