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Laws of Motion Ch.2

Total questions: 37

Worksheet time: 1hrs 1mins

Name
Class
Date
1.
Push or pull on an object 
a)
force
b)
gravity
c)
mass
d)
inertia
2.
Forces between all objects with mass
a)
mass
b)
weight
c)
friction
d)
gravity
3.
Gravitational force exerted on an object
a)
mass
b)
weight
c)
friction
d)
gravity
4.
Amount of matter in an object
a)
mass
b)
weight
c)
friction
d)
gravity
5.
Contact force that resists sliding
a)
mass
b)
weight
c)
friction
d)
gravity
6.
Which law states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force? 
a)
Newton's First Law of Motion
b)
Newton's Second Law of Motion 
c)
Newton's Third Law of Motion 
d)
None of the above
7.
Which law is know as the law of inertia?
a)
Newton's First Law of Motion
b)
Newton's Second Law of Motion 
c)
Newton's Third Law of Motion 
d)
None of the above
8.
Which law states acceleration of an object is equal to the net force exerted on object divided by an objects mass? 
a)
Newton's First Law of Motion
b)
Newton's Second Law of Motion 
c)
Newton's Third Law of Motion 
d)
None of the above
9.
Which law explains why we need to wear seatbelts? 
a)
Newton's First Law of Motion
b)
Newton's Second Law of Motion 
c)
Newton's Third Law of Motion 
d)
None of the above
10.
Which law states for every action there is an equal and opposite reaction?
a)
Newton's First Law of Motion
b)
Newton's Second Law of Motion 
c)
Newton's Third Law of Motion 
d)
None of the above
11.

What measures how hard it is to stop a moving object?

a)

centripetal force

b)

momentum

c)

friction

d)

force

12.
Combine of all forces on an object 
a)
Net Force
b)
balance force
c)
centripetal force 
13.
In circular motion, a force that acts perpendicular to the direction of motion, toward the center of the curve is 
a)
Net Force
b)
balance force
c)
centripetal force 
14.
An astronaut's _____________ changes as he/she goes from Earth into space. 
a)
size
b)
weight
c)
mass
15.
What will happen to an object at rest if the net force on it is zero? 
a)
it will speed up
b)
it will stay at rest
c)
it will start moving 
16.
Tendency of an object to resist a change in motion 
a)
inertia
b)
force
c)
mass
17.
Measure of how hard it is to stop a moving object
a)
force
b)
momentum 
c)
mass
d)
force pair 
18.
Why does a crash-test dummy lunge forward during a car crash?
a)
gravity
b)
velocity
c)
inertia
19.
Which type of force involves two objects touching?
a)
contact
b)
magentic
c)
noncontact
20.

How can you reduce friction?

a)

increasing mass of one of the objects

b)

removing surface area of the objects

c)

add a substance to act as a lubricant

d)

increase acceleration of both objects

21.

A rocket pushes burning gases DOWN which causes the rocket to launch UP. Which law is this?

a)

Law 1

b)

Law 2

c)

Law 3

22.

A sports car speeds up much faster than a dump truck when a traffic light turns from red to green. Which law is this?

a)

Law 1

b)

Law 2

c)

Law 3

23.

When a mule stops suddenly, the packages on its back continue to move forward onto the ground. Which law is this?

a)

Law 1

b)

Law 2

c)

Law 3

24.

An object in motion stays in motion and an object at rest stays at rest UNLESS

a)

acted on by a balanced force.

b)

acted on by an unbalanced force.

25.

Force is related to mass and acceleration. Which law is this?

a)

Law 1

b)

Law 2

c)

Law 3

26.

It is much more difficult to move a dresser full of clothes than an empty dresser.

a)

Law 1

b)

Law 2

c)

Law 3

27.

A book sitting on the table does not move.

a)

Law 1

b)

Law 2

c)

Law 3

28.

A skateboarder pushes the ground BACKWARDS which causes the board to move FORWARD.

a)

Law 1

b)

Law 2

c)

Law 3

29.

Which law is this picture illustrating?

a)

Law 1

b)

Law 2

c)

Law 3

30.
If these boys are pulling with the same amount of force.  What will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
31.
It takes more force to accelerate the iron man on the left than the iron man on the right because the iron man on the left has more mass. This best describes
a)
Newton's first law, the law of inertia
b)
Newton's second law, the law of acceleration
c)
Newton's third law, the law of action reaction 
d)
The law of universal gravitation
32.
a)
1st
b)
2nd
c)
3rd
33.
What is the attractive force that exists between all objects that have mass?
a)
Weight
b)
Mass 
c)
Gravity
d)
Viscosity
34.
If an object is stationary (not moving) the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
35.
What Newtons law does this picture represent
a)
Newtons 2nd law 
b)
Law of gravity 
c)
Newtons 1st law
d)
Newtons 5th law
36.
Which is always a contact force?
a)
electric
b)
friction
c)
magnetic
d)
gravity
37.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement

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