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Unit 9 Review - Newtons Laws

Total questions: 66

Worksheet time: 37mins

Name
Class
Date
1.
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
2.
The equation to calculate momentum is
a)
p=mv
b)
p=1/2mv2
c)
p=mgh
d)
p=mg
3.
Which has more momentum: a car stopped at a red light or a bike moving at 15 mph?
a)
car
b)
bike
c)
they are equal
d)
cannot determine using the info provided
4.
Determine the momentum of 1000-kg car moving southward at 20 m/s......... 
a)
20000 N
b)
20000 Joules
c)
20000 Kg * m/s south
d)
10000 kg * m/s south
5.
Momentum is a ____________________ quantity
a)
science
b)
scalar
c)
vector
d)
energy
6.
A picture is hanging on a wall and does not move.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
7.
Rockets are launched into space using jet propulsion where exhaust accelerates out from the rocket and the rocket accelerates in an opposite direction.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
8.
Pushing a child on a swing is easier than pushing an adult on the same swing, because the adult has more inertia.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
9.
Acceleration is produced when a force acts on a mass. The greater the mass (of the object being accelerated) the greater the amount of force needed (to accelerate the object).
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
10.
An object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
11.
This law is often called "the law of inertia."
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
12.
A student leaves a pencil on a desk and the pencil stays in the same spot until another student picks it up.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
13.
A rocket is sent into space.  When the power dies out, the rocket will just keep floating and moving in space forever (unless an unbalanced force, such as a meteor, runs into it).
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
d)
None of them
14.

Newton's 3rd Law states that for ever action there is an equal and opposite ________.

a)

reaction

b)

satisfaction

c)

fraction

d)

transaction

15.

If a 10 kilogram object accelerates suddenly at 15 m/s2, how much force was applied to the object?

a)

150 Newtons

b)

15 Newtons

c)

150 kilograms

d)

100 kilograms

16.
45 m/s2 is the... 
a)
Mass
b)
Force 
c)
Acceleration
d)
weight
17.
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
18.
Unit of mass
a)
m/s 2
b)
m/s
c)
newtons
d)
kg
19.

Unit for acceleration?

a)

m/s2

b)

kg

c)

newtons

d)

a

20.

What is the unit for force?

a)

m/s2

b)

kg

c)

N

d)

F

21.

A 50 kg skater pushes off from a wall with a force of 200 N. What is the skater’s acceleration?

Solve this problem

a)

200 / 50 = 4 m/s2

b)

50 / 200 = 4 N

c)

200 x 50 = 10,000 m/s2

d)

200 / 50 = 4 N

22.

Any push or pull on an object.

a)

Force

b)

Inertia

c)

Velocity

d)

Momentum

23.

The force that opposes motion between two surfaces in contact with one another.

a)

Inertia

b)

Momentum

c)

Friction

d)

Gravity

24.

What will happen if you are in a car, and the driver slams on the brake?

a)

You will stop moving immediately.

b)

You will gradually slow down.

c)

You will speed up.

d)

You will continue moving forward.

25.

Which law applies: F=mxa

a)

1st

b)

2nd

c)

3rd

d)

4th

26.

An object is falling downward through Earth's atmosphere. In which direction is the air resistance force?

a)

Down

b)

Up

c)

Around the object

d)

Through the object

27.

The upward force which is exerted against a falling object is

a)

gravity

b)

terminal velocity

c)

air resistance

d)

intertia

28.

A force which causes objects to fall is

a)

weight

b)

gravity

c)

air resistance

d)

absorbency

29.

When a falling object stops accelerating and falls at a constant speed, it is

a)

fluency

b)

constant velocity

c)

acceleration

d)

terminal velocity

30.

The amount of matter in an object is its _____________.

a)

Weight

b)

Mass

c)

Force

31.

If you jump out of an airplane, which two forces are acting on you?

a)

Gravity and friction

b)

Force and gravity

c)

Gravity and Air Resistance

32.

What is a parachute designed to maximize?

a)

Gravity

b)

Air Pressure

c)

Air Resistance

d)

Thrust

33.
A heavy truck and a light truck roll down a hill. Ignoring friction, at the bottom of the hill, the heavier truck will have:
a)
greater momentum
b)
greater speed
c)
less speed
d)
less momentum
34.

When you drop a hammer and a feather on the moon what will happen? There is no air on the moon.

a)

They will hit at the same time

b)

The hammer will hit first

c)

The feather will hit first

35.

The acceleration of objects falling on Earth due to gravity is

a)

9.8 m/s

b)

9.8 m/s2

c)

9.8 g/mL

d)

9.8 g/m/m

36.

Define acceleration due to gravity.

a)

The force of gravity acting on an object.

b)

The velocity of an object under the influence of gravity.

c)

The acceleration experienced by an object due to gravity.

d)

The force of gravity.

37.
Acceleration is defined as the CHANGE in 
a)
time of motion to another place. 
b)
velocity 
c)
distance 
d)
speed
38.

What does it mean for an object to be in free fall?

a)

Only air resistance acting on the object.

b)

Gravity is the only force acting on the obejct.

c)

Any object that is in downward motion.

39.

A textbook is dropped from a second floor window and falls to the ground. What happens to the velocity as the book falls to the ground

a)

the velocity increases

b)

the velocity decreases

c)

the velocity remain constant

40.

What is the unit for momentum?

a)

m/s

b)

kg

c)

N

d)

kg* m/s

e)

J

41.
How does friction affect speed?
a)
more friction decreases speed
b)
more friction increases speed
c)
less friction decreases speed
d)
less friction doesn't affect speed
42.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
43.
 What is the unit called that measures force?
a)
weight
b)
meter
c)
Newton
d)
kilogram
44.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
45.

Without friction, an object in motion would never stop.

a)

true

b)

false

46.

Which of these materials do you predict would have the MOST amount of friction?

a)

metal

b)

tile

c)

sand paper

d)

denim

47.

Which of the following best describes two surfaces that are in contact with each other but are not in motion?

a)

kinetic friction

b)

static friction

48.

A red 2008 Dodge Ram 1500 driving north bound on I-35 en route home from Kearney Junior High in Kearney Missouri on a warm Wednesday in March in the year 2019 is an example of what type of friction?

a)

emotional

b)

fluid

c)

rolling

d)

sliding

49.

What is static friction?

a)

the friction between two objects that are not moving

b)

friction between a rolling object and the surface that it is rolling on

c)

friction is friction where an object rubs against another surface

d)

friction of something going through any type of liquid or air

50.

What is sliding friction?

a)

friction between two surfaces that aren't moving relatively to each other

b)

friction between a rolling object and the surface that it is rolling on

c)

friction where an object rubs against another surface

d)

friction of something going through any type of liquid or air

51.

Who is this

a)

Captain Marvel

b)

The Hulk

c)

Captain America

d)

Batman

52.

Who is This

a)

Hawkeye

b)

Hawkgirl

c)

The hulk

d)

Ironman

53.

what animal is it illegal to make fun of in minnesota

a)

badger

b)

pig

c)

skunk

d)

fish

54.

what do u call a group of unicorns?

a)

unicorns

b)

sparklers

c)

a rainbow

d)

a blessing

55.

what animals urine glows in the dark (uv light)?

a)

frog

b)

duck

c)

cat

d)

bear

56.

what sport has been played on the moon?

a)

soccer

b)

badminton

c)

tennis

d)

golf

57.

what is #1 seller at walmart

a)

chicken

b)

underwear

c)

bananas

d)

socks

58.

What is the world’s largest ocean?

a)

Caribbean

b)

Atlantic

c)

Pacific

d)

Artic

59.

Which is the most abundant metal in the earth’s crust?

a)

Iron

b)

Aluminum

c)

Steel

d)

Magnesium

60.

In what month is the Earth closest to the sun?

a)

July

b)

October

c)

April

d)

January

61.

Computing: What colour is the logo for Spotify?

a)

Yellow

b)

Red

c)

Green

d)

Blue

62.

History: Which country gifted the Statue of Liberty to the U.S.A.?

a)

Spain

b)

United Kingdom

c)

France

d)

Italy

63.

According to Newton’s third law of motion, when a hammer strikes and exerts force on a nail, the nail

a)

creates a friction with the hammer.

b)

disappears into the wood.

c)

exerts an equal and opposite force on the hammer.

d)

moves at a constant speed.

64.

Define the term inertia.

a)

the amount of matter in an object

b)

the amount of space an object takes up

c)

the tendency of an object to resist a change in motion, determined by mass

d)

The force that one surface exerts on another when the two rub against each other

65.

Which is not a type of friction?

a)

rolling

b)

static

c)

sliding

d)

fluid

e)

air

66.

When is the test?

a)

Friday

b)

Tuesday

c)

Test? What test?

d)

Thursday

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