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Laws of motion

Total questions: 42

Worksheet time: 1hrs 3mins

Name
Class
Date
1.

Newton's First Law States........

a)

Objects at rest tend to stay at rest unless acted on by an outside force.

b)

Objects accelerate often and it is difficult to know when or how they will accelerate.

c)

Objects in motion tend to stay in motion unless acted on by an outside force.

d)

Both A & C

2.

Inertia depends on __________.

a)

Weight

b)

none of these

c)

Mass

d)

Acceleration

3.

What is inertia?

a)

An object that is accelerating

b)

Gravitational force

c)

An objects tendency to stay at rest or in motion

d)

An unbalanced force

4.

What formula is used to calculate force?

a)

Acceleration = Force x Mass

b)

Force = Mass x Acceleration

c)

Work = Force x Distance

d)

Mass = Force + Acceleration

5.

A force of 40 N acts upon a 2 kg block. Calculate the acceleration of the object.

a)

20 m/s2

b)

20 m/s

c)

80 m/s2

d)

80 m/s

6.

Newton's third law states.......

a)

For each action there is a larger reaction associated with it.

b)

None of these choices

c)

For each action there is an equal and opposite reaction.

d)

For each action there is a smaller reaction associated with it.

7.

The tendency of an object to just keep doing what it is doing.

a)

Laziness

b)

F=MA

c)

No Clue

d)

Inertia

8.
Which of the following best describes the velocity of an object?
a)
30 m/s
b)
30 m East
c)
30 m/s East
d)
30 m/s2
9.
Which law best explains why the coin sitting on top of the ring falls directly into the jar below because it wants to remain at rest?
a)
Newton's Law of Inertia
b)
Newton's Law of F=ma
c)

Newton's 3rd Law

d)
Newton's Law of Science
10.
Which one of Newton’s Laws of Motion best explains why the dishes do not move when the table cloth is removed?
a)
Newton's Law of Inertia
b)
Newton's Law of F=ma
c)

Newton's 3rd Law

d)
Newton's Law of Biology
11.
A force of 560 N is needed to produce an acceleration of 20 m/s2. What is the mass of the accelerated body?
a)
28 kg
b)
11200 kg
c)
0.04 kg
d)
580 kg
12.
Newton's first law that says an object at rest will remain at rest unless acted upon by an unbalanced force is also called the law of 
a)
acceleration
b)
inertia
c)
action and reaction
d)
may the force be with you
13.
What is Newton's Third Law?
a)
Object in motion stays in motion and an object at rest stays at rest unless acted on by a outside force
b)
Force = mass x acceleration
c)
For every action there is an equal and opposite reaction
14.

Among the equal-sized stone and a football, the inertia will be higher of:

a)

football

b)

stone

c)

both

d)

none of them

15.

Force F=...............

a)

ma

b)

m(v-u/t)

c)

mv/t

d)

Both A and B

16.
What is Newton's First Law known as? The Law of
a)
Friction
b)
Mass
c)
Inertia
d)
Gravity
17.

This equation goes with which law?

a)

Newton's first law of motion

b)

Newton's second law of motion

c)

Newton's third law of motion

18.

A person is pushed forward into their seat belt when a car stops. Which law is this?

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

19.
Which of Newton's laws are illustrated with a rocket launch?
a)
1st Law, the Law of Inertia. 
b)
2nd Law, the Law of Acceleration.
c)
3rd Law, the Law of Action Reaction
d)
The Law of Conservation of Mass
20.

When the force on a car is doubled, the acceleration is doubled.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

21.

A skater pushes another skater forward, but the one pushing moves backwards.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

22.

The harder you hit a baseball, the faster it accelerates.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

23.

You push against a wall and the wall is pushing back on you.

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

24.
Which one needs a greater net force to move, a kilogram of feathers or a kilogram of iron? 
a)
feathers 
b)
iron
c)
same
d)
depends on their friction
25.
What law of motion does this picture represent?
a)
Newtons 1st law
b)
Newtons 4th law 
c)
Newtons 3rd law 
d)
Newtons 2nd law
26.

Which of the following has more inertia?

a)

Bowling ball

b)

Tennis ball

27.

Newton's Third Law says that forces must always occur in _____.

a)

pairs

b)

groups of 20 or more

c)

individual circumstances

d)

friction

28.

Because of inertia, a resting object ________.

a)

will remain at rest

b)

will move at a constant speed

c)

will eventually move

d)

is unbalanced

29.

An object in motion stops when.....

a)

It falls of an edge.

b)

it is acted upon by an outside force.

c)

It is eaten

d)

It never stops

30.
An empty truck and a fully loaded truck are next to each other at a traffic light. When the light turns green, the lighter truck increases speed more quickly. Which of these best explains this situations
a)
Newton's first law
b)
Newton's second law
c)
Newton's third law
d)
Conservation of momentum
31.
A force of 90N is applied to each cart below, which one will accelerate the fastest?
a)
Cart 1
b)
Cart 2
c)
Cart 3 
d)
Cart 4
32.

A cotton ball and a iron ball are thrown from the same height. Which of the following will reach the ground first?

a)

the cotton ball reaches first

b)

the iron ball reaches first

c)

both the balls reach same time

d)

none of these

33.
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.
34.

Keeping applied force constant ,if you increase the mass on an object, its acceleration

a)

decreases

b)

stays the same

c)

also increases

d)

stops

35.

Cricketer use to pull his hands backwards/downwards while catching ball , this is to ________

a)

Reduce the acceleration of ball

b)

increase time duration to reduce momentum to zero so that force decreases

c)

as he is afraid of ball

d)

none of the above

36.

An automobile you are riding in suddenly stops, but you continue to go forward.

a)

Newton's

1st

Law of Motion

b)

Newton's

2nd

Law of Motion

c)

Newton's

3rd

Law of Motion

37.

A skater pushes another skater forward, but the one pushing moves backwards.

a)

Newton's

1st

Law of Motion

b)

Newton's

2nd

Law of Motion

c)

Newton's

3rd

Law of Motion

38.

As the fuel in a rocket ignites, the force of gas expansion and explosion pushes out the back of the rocket and pushes the rocket forward.

a)

Newton's

1st

Law of Motion

b)

Newton's

2nd

Law of Motion

c)

Newton's

3rd

Law of Motion

39.

Force and acceleration have

a)

a direct relationship

b)

an inverse relationship

40.

Mass and acceleration have

a)

a direct relationship

b)

an inverse relationship

41.
What law of motion does this picture represent?
a)
Newtons 1st law
b)
Newtons 4th law 
c)
Newtons 3rd law 
d)
Newtons 2nd law
42.

If an object has a small mass, it wouldn't need as strong of a force to accelerate it. Which law does this describe?

a)

Newton's 1st Law

b)

Newton's 2nd Law

c)

Newton's 3rd Law

d)

Newton's 4th Law

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