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Unit 3 Test Review

Total questions: 39

Worksheet time: 59mins

Name
Class
Date
1.

Newton's Law of Inertia (first law) describes the motion of-

a)
Objects at rest only
b)
Objects in motion only
c)
Objects at rest and objects that are in motion
d)

Objects that accelerate

2.
Which one of Newton’s Laws of Motion best explains why the dishes do not move when the table cloth is removed?
a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action-Reaction

d)

Law of Gravitation

3.
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)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - Reaction

d)

Law of Gravitation

4.
For every action, there is an equal and opposite reaction.
a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - Reaction

5.

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

a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action - reaction

6.

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

a)

Law of Inertia

b)

Law of Acceleration

c)

Law of Action Reaction

7.
The tendency of an object to resist a change in motion is...
a)
inertia
b)
kinetic energy
c)
vector
d)
net force
8.

Force=Mass x Acceleration

a)

Newton's First Law

b)

Newton's Second Law

c)

Newton's Third Law

9.

Isaac Newton stated for every action there is an

_________ and _________ reaction.

a)

equal and same

b)

equal and opposite

c)

unequal and same

d)

unequal and opposite

10.

What determines an object’s mass?

a)

amount of matter

b)

amount of friction

c)

amount of force

d)

amount of gravity

11.

What is inertia?

a)

Only how things move

b)

Only how things do not move

c)

How things move and don't move

d)

All of the above

12.

What does friction do to a moving object?

a)

Makes it rise

b)

Slows it down

c)

Speeds it up

d)

All of the above

13.

How is velocity different from speed?

a)

Velocity is when an object goes in reverse.

b)

Velocity is the direction an object moves in, and it has nothing to do with speed.

c)

Velocity is speed and direction together.

d)

Velocity is not at all different from speed.

14.

Gravity is a _____ that _____

2 objects towards one another.

a)

thing

reaches

b)

energy

pushes

c)

force

pulls

d)

weight

takes

15.

What two things determine the gravity of an object?

a)

length & height

b)

mass & distance

c)

color & mass

d)

volume & distance

16.

Which model has greater gravitational attraction.

a)

model A

b)

model B

c)

both models have equal gravity

17.
As distance between objects increases the pull of gravity...
a)
increases 
b)
decreases 
c)
Stays the same 
18.

When you drop a bowling ball and a feather, why does the feather fall slower?

a)

air resistance causes the feather to fall slower

b)

gravity pulls harder on the bowling ball than the feather

c)

gravity pulls harder on the feather than the bowling ball

d)

air resistance causes the bowling to fall slower

19.

The first person to study gravity was an English scientist named __________.

a)

Einstein

b)

Fig Newton

c)

Isaac Newton

d)

Chris P. Bacon

20.

When you push a desk that doesn't move,

a)

Sliding friction occurs

b)

static friction occurs

c)

rolling friction occurs

d)

fluid friction occurs

21.

When you stand on a bathroom scale, it displays the _______________ that Earth is exerting on you.

a)

gravitational force

b)

mass

c)

power

22.

Friction acts in a a direction _________________ to the direction of the object's motion.

a)

similar

b)

opposite

c)

that is nonexistent

23.

The applied force required to push something across a surface _____________ as friction increases.

a)

Increases

b)

Decreases

c)

Stays the same

24.

When the irregularities of one surface come into contact with those of another surface, ___________ occurs

a)

Gravity

b)

Orbit

c)

Friction

d)

Electricity

25.

A push or a pull.

a)

work

b)

force

c)

motion

d)

energy

26.

Resistance to change.

a)

power

b)

force

c)

inertia

d)

energy

27.

According to Newton's second law of motion, a/an ________ force will cause an object to move in the direction of the force.

a)

balanced

b)

unbalanced

c)

equal

d)

Yoda

28.

This is an example of ... force

a)

pull

b)

push

c)

gravity

29.

This is an example of what force?

a)

push

b)

pull

c)

magnetism

30.

The momentum of an object depends upon the object's ___________&_____________.

a)

size and shape

b)

mass and speed

c)

mass and veloctiy

d)

mass and energy

31.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
32.
What is the unit for momentum?
a)
m/sec
b)
kg/sec
c)
kg/m
d)
kg m/sec
33.
A 50 kg ball rolls down the street at 5 m/s. Calculate the momentum of the ball. 
a)
55 kg*m/s
b)
100 kg*m/s
c)
250 kg*m/s
d)
500 kg*m/s
34.
Determine the momentum of 1000-kg car moving northward at 20 m/s......... 
a)
20000 N
b)
20000 Joules
c)
20000 Kg * m/s
d)
20000 kg * m/s north
35.

The more streamlined an object is, the...

a)

More air resistance

b)

Less air resistance

c)

Slower air resistance

d)

Faster air resistance

36.

Air resistance pushes against falling

objects and __________________.

a)

Speeds them up

b)

Keeps them afloat

c)

Slows them down

d)

Spins them

37.

What makes objects fall to the earth

a)

Gravity

b)

Wind

c)

Force

d)

Air Pressure

38.

If we dropped a penny and a feather that had the exact same mass at the exact same time in OUR CLASSROOM. Which would hit the ground first?

a)

Penny

b)

Feather

c)

They would hit at the same time

39.

If we dropped a penny and a feather that had the exact same mass at the same time in a VACUUM (all air removed). Which would hit the ground first?

a)

Penny

b)

Feather

c)

They would hit at the same time

d)

Newtons