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Motion Part 2 Review

Total questions: 93

Worksheet time: 2hrs 1mins

Name
Class
Date
1.

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

2.

Look at the pictures of the cars. Which car will have the most air resistance force acting upon it? They will be moving at the same speed.

a)
b)
c)
d)

All will have equal air resistance force.

3.
An astronaut is on the moon.  He drops a hammer and a feather from the same height above the ground.  Which object impacts the moon's surface first?
a)
Hammer
b)
Feather
c)
Both impact at the same time
d)
Both float away into space
4.

The more mass an object has, the faster it will fall, if air resistance is negligible.

a)

True

b)

False

5.
Objects that are only under the influence of gravity are considered to be  ____
a)
in freefall
b)
flying
c)
in freefall only if they are moving downwards
6.
A freely falling object starts from rest, after falling for 15s it will have a speed of about...
a)
750m/s
b)
15m/s
c)
150m/s
d)
75m/s
7.
In the absence of air resistance, objects fall at constant
a)
velocity
b)
acceleration
c)
speed
d)
distance
8.
If you drop a feather and a coin at the same time in a vacuum tube, which will reach the bottom of the tube first?
a)
the coin
b)
the feather
c)
neither, they will both hit at the same time
d)
it depends on the length of the tube
9.

A feather will fall through the air more slowly than a brick because of _____.

a)

air resistance

b)

gravity

c)

intertia

d)

momentum

10.

A problem that asks "how far did the object move?" is prompting you for an answer measured in

a)

distance in meters.

b)

velocity in meters / second.

c)

acceleration in meters / second^2.

d)

time in seconds.

11.

A problem that asks "how fast was the object going?" is prompting you for an answer measured in

a)

distance in meters.

b)

velocity in meters / second.

c)

acceleration in meters / second^2.

d)

time in seconds.

12.

A problem that asks "how long did it take" is prompting you for an answer measured in

a)

distance in meters.

b)

velocity in meters / second.

c)

acceleration in meters / second^2.

d)

time in seconds.

13.

From the 2nd floor of Hinsdale South High School, you drop your wallet. If it takes 1.8 seconds to fall to the ground, how high up were you?

a)

17.62 m

b)

15.88 m

c)

77.79 m

d)

8.82 m

14.
Acceleration only takes place when things speed up. 
a)
True
b)
False
15.
Which of the following is a unit for acceleration?
a)
km/s
b)
m/s2
c)
mi/hr
d)
ft
16.
A roller coasters accelerates from an initial velocity of of 6.0 m/s to a final velocity of 70 m/s over 4 seconds.  What's the acceleration?
a)
24 m/s2
b)
18 m/s2
c)
16 m/s2
d)
16 m/s
17.

Why do these skydivers spread their arms and legs as they fall?

a)

To decrease air resistance and fall faster

b)

To increase the air resistance and fall slower.

c)

To increase terminal velocity

18.
A horse gallops around a circular arena.  The centripetal force on the horse is ___.
a)
directed outward
b)
tension
c)
directed toward the center of the arena
d)
9.8 N
19.
Which of the following is the unit for centripetal force?
a)
J
b)
m/s2
c)
kg⋅m/s
d)
N
20.
Which of the following increase the centripetal force?
a)
Increasing the radius
b)
Increasing the velocity
c)
Decreasing the mass
d)
Decreasing the acceleration
21.
When an object is in circular motion what type of acceleration is occurs?
a)
Constant
b)
Directional
c)
Positive
d)
Negative
22.
When an object is in circular motion it is constantly changing its velocity.
a)
True
b)
False
23.
As the moon orbits the earth, what keeps the moon moving in a circular motion?
a)
Gravity
b)
Inertia
c)
Centripetal Force
d)
Friction
24.
You swing a bucket of water attached to a string in a circle above your head. What keeps the water in the bucket?
a)
Friction
b)
Centripetal Force
c)
Gravity
d)
Inertia
25.
Where is the net force when the rollercoaster is at the top of the loop?
a)
Towards the sky
b)
Towards the Right
c)
Towards the left
d)
Towards the ground
26.
What law is best described by inertia?
a)
1st
b)
2nd
c)
3rd
d)
law of conservation of mass
27.
a)
1st
b)
2nd
c)
3rd
d)
law of motion
28.
Equal and Opposite
a)
1st
b)
2nd
c)
3rd
d)
speed 
29.
A magician pulls a tablecloth out from under dishes and glasses on a table without disturbing them.
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
30.
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)
31.
What Unit do we Measure Force in? 
a)
Newtons
b)
Joules
c)
Force
d)
Kilograms
32.
With unbalanced forces, the object will move in the direction that the _______ force is being applied.
a)
larger 
b)
smaller 
c)
equal 
d)
less
33.

When two equal forces act in opposite directions on an object, they are called ______________________.

a)

frictional force

b)

balanced force

c)

centripetal force

d)

gravitational force

34.

When an unbalanced force acts on an object, the force ______________________.

a)

changes the motion of the object

b)

is cancelled by another force

c)

does not change the motion of an object

d)

is equal to the weight of the object

35.

The resistance of an object to any change in its motion is called ______________________.

a)

inertia

b)

friction

c)

gravity

d)

weight

36.

According to Newton’s second law of motion, force is equal to mass times ______________________.

a)

inertia

b)

weight

c)

acceleration

d)

direction

37.

The picture is an example of Newton's...

a)

1st Law

b)

2nd Law

c)

3rd Law

38.

The picture is an example of Newton's...

a)

1st Law

b)

2nd Law

c)

3rd Law

39.
Any push or pull on an object.
a)
force
b)
velocity 
c)
inertia
d)
momentum
40.
The force that opposes motion between two surfaces in contact with each other.
a)
inertia
b)
friction
c)
momentum
d)
gravity
41.
The force of attraction between all matter.
a)
inertia
b)
friction
c)
net force
d)
gravity
42.
A Newton is a unit of...
a)
force
b)
inertia
c)
acceleration
d)
velocity
43.
The combination of all the forces acting on an object is the...
a)
net force
b)
action force
c)
reaction force
d)
balance force
44.
An archer pulls the bowstring back, then releases the string and the arrow flies forward. Pulling the string back is the...
a)
action force
b)
reaction force
c)
net force
d)
inertia
45.
An archer pulls the bowstring back, then releases the string and the arrow flies forward. The arrow flying forward is the...
a)
action force
b)
reaction force
c)
net force
d)
inertia
46.
A cannonball with a mass of 0.5 kg is flying at an acceleration of 10 m/sec/sec. What is it's force?
a)
50 Newtons
b)
5 Newtons
c)
20 Newtons
d)
9.5 Newtons
47.
Gravity is increased with...
a)
greater mass & shorter distance
b)
greater mass & farther distance
c)
lower mass & shorter distance
d)
lower mass & farther distance
48.
The law of universal gravitation is credited to whom? 
a)
Einstein 
b)
Galileo
c)
Darwin
d)
Newton 
49.
Two factors effecting the magnitude of force of gravity between 2 objects are...
a)
weight and mass 
b)
distance and weight 
c)
mass and matter 
d)
mass and distance 
50.
Gravity attracts all objects towards one another. 
a)
True
b)
False 
51.
An object with mass has gravity.
a)
True
b)
False 
52.
The amount of matter in an object.
a)
force 
b)
mass
c)
weight 
d)
pressure 
53.
Which of the following never changes no matter where you are in the universe? 
a)
Pounds 
b)
weight 
c)
Force
d)
Mass
54.
A person would weigh less on the moon than on the Earth because...
a)
the moon has less mass, and therefore less gravity
b)
the moon has more mass, and therefore less gravity
c)
the moon has less mass, and therefore more gravity
d)
the moon has more mass, and therefor more gravity
55.
The relationship between the mass of objects and its weight on Earth is constant. 
a)
True
b)
False 
56.
An example of a gravitational interaction is that the Earth... 
a)
orbits the sun
b)
orbits the moon
c)
orbits other planets 
d)
None of the above 
57.
A person weights _______ on the moon than they do on Earth.
a)
the same
b)
more
c)
less
58.
A person would weigh more on Jupiter than on the Earth because---
a)
Jupiter has less mass, and therefore less gravity
b)
Jupiter has more mass, and therefore less gravity.
c)
Jupiter has less mass, and therefore more gravity.
d)
Jupiter has more mass, and therefore more gravity
59.
__________holds all of the planets in orbit around the sun.
a)
Force
b)
Motion
c)
Weight
d)
Gravity
60.
Which objects have a STRONG force of gravity?
a)
Objects with GREATER mass, like elephants
b)
Objects with LESS mass, like mice
61.
Why is it harder for the boy in Image B to get down the hill?
a)
Motion
b)
Friction
c)
Work
d)
Displacement
62.
How is gravity affected by mass?
a)
the larger the mass of the object, the greater the gravity
b)
small objects have no gravity
c)
gravity is not affected by mass of objects, whether large or small
63.

Why does a rolling ball stop?

a)

Gravity

b)

Friction

c)

Waterfalls

d)

Sand

64.

Students roll toy cars down the same ramp with different coverings like carpet, foil, and sandpaper. What are they trying to test?

a)

How does the height of a ramp affect the distance a car will roll?

b)

How does the mass of the car affect the distance a car will roll?

c)

How does the surface of a ramp affect how fast a car will travel?

d)

How does the surface of a ramp affect the distance a car will roll?

65.

In order to test friction, what is needed for the investigation?

a)

Several ramps of different heights

b)

Several cars of different masses

c)

Several ramps with different surfaces

d)

Several cars of different speeds

66.
Friction is a force that acts in an ___________ direction of movement.
a)
similar
b)
opposite
c)
parallel
d)
west
67.
The amount of friction depends on the weight of the objects pressing together.
a)
True
b)
False
68.
What type of friction is not moving?
a)
static
b)
sliding
c)
fluid
d)
rolling
69.
How can friction be reduced?
a)
reduce the force acting between the 2 surfaces
b)
reduce the roughness of the 2 surfaces coming in contact
c)
use wax, grease or oil
d)
all of the above are ways of reducing friction
70.
A type of friction that occurs when air pushes against a moving object causing it to decelerate.
a)
surface area
b)
air resistance
c)
velocity
d)
gravity 
71.
Which of the following is an example of friction that is helpful?
a)
Brakes used on a bike
b)
Tires from a car on the road
c)
Tread on the bottom of your shoes
d)
All are examples that are helpful
72.
Which of the following is an example of friction that is harmful?
a)
Pencil marking on paper
b)
Engine parts wearing out
c)
sand placed on ice in the winter
d)
Using an eraser to erase marks
73.
How would the absence of friction affect a marble traveling on a long, straight path?
a)
The marble’s speed would decrease.
b)
The marble’s speed would increase.
c)
The marble would stop immediately. 
d)
The marble would remain at constant speed.
74.
When two surfaces rub, the irregularities of one surface get caught on those of the other surface?
a)
True
b)
False
75.
Rougher surfaces have ...
a)
greater friction
b)
less friction
c)
the same level of friction
76.

What are the forces acting on a projectile?

a)

gravity

b)

air resistance

c)

horizontal force

d)

rolling friction

77.

Just after she jumps out of the plane (before the parachute opens). The relative forces will be

a)

Balanced

b)

Unbalanced

78.

Just after she jumps out of the plane (before the parachute opens). The relative forces will be

a)

Weight force is equal to the friction force

b)

Friction force is constant

c)

Weight force is greater that the friction force

d)

Friction force is greater than the weight force

79.

Just after she jumps out of the plane (before the parachute opens). The net force will be

a)

zero

b)

upward

c)

downward

80.

Just after she jumps out of the plane (before the parachute opens). The sky diver will have

a)

a constant speed

b)

a constant acceleration

c)

a constant velocity

81.

After the 60 seconds, the parachutist pulls the cord and opens her parachute.

Explain how the parachute reduces the speed of the parachutist when it is just opened.

a)

The friction force decreases

b)

The weight force decreases

c)

The weight force increases

d)

The friction force increases

82.
Describe the motion at point a. on the graph.
a)
constant speed
b)
accelerating
c)
decelerating
d)
stationary
83.

When a parachute canopy is opened more drag is created because:

a)

It has a large mass

b)

It has a large surface area

c)

It is travelling at terminal speed

d)

The person is now vertical

84.

According to Galileo's observations gravity pulls on all objects equally regardless of _____________

a)

size

b)

shape

c)

mass

d)

time of day

85.

According to Newton's Universal Law of Gravitation you need __________ to have gravitational force of attraction

a)

a mass and 2 distances between

b)

2 masses touching and no distance between

c)

2 masses not touching and a distance between

d)

gravity is a made up force

86.

The value for gravity on Earth is around _____ m/s^2

a)

5

b)

9.8

c)

8.9

d)

15

87.

If the distance between 2 objects with mass gets larger the force of gravity will ____________

a)

get larger

b)

get smaller

c)

remain constant

d)

fluctuate with the tides

88.

weight and mass are the same thing

a)

No - mass is a function of gravity and weight is the atoms and molecules that make up the object

b)

No - weight is a function of gravity and mass is the atoms and molecules that make up the object

c)

Yes - they are both the same

d)

Maybe - it depends on the flux capacitor

89.

When the air resistance or drag is equal and opposite to the weight of the object you would call this

a)

terminal velocity

b)

gravitational weight

c)

flux capacitor

d)

rotational inertia

90.

Here is a list of astronomical objects and their gravity:

Sun 274

Moon 1.6

Mars 3.77

Jupiter 25

Earth 9.8


Where would you weigh the most

a)

Sun

b)

Moon

c)

Mars

d)

Earth

e)

Jupiter

91.

Here is a list of astronomical objects and their gravity:

Sun 274

Moon 1.6

Mars 3.77

Jupiter 25

Earth 9.8


Where would you weigh the least

a)

Sun

b)

Moon

c)

Mars

d)

Earth

e)

Jupiter

92.

When an object is in free fall it is said to be ___________

a)

moving at terminal velocity

b)

weightless

c)

in microgravity

d)

all of the above

93.

The reason we do not feel a gravitational attraction between us and smaller objects is due to the mass of the ____________ being so much larger.

a)

Earth

b)

Moon

c)

Sun

d)

magnetic field of flux

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