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Physics Review

Total questions: 52

Worksheet time: 2hrs 10mins

Name
Class
Date
1.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
2.
8 N to the left , and 4 N to the right. Find the net force. Is this balanced?
a)
12 N Right  No
b)
4 N Left  No
c)
12 N Right  Yes
d)
4 N Left  Yes
3.
With unbalanced forces, the object will move in the direction of the _______ force.
a)
larger 
b)
smaller 
c)
equal 
4.
Force pair that has a net force of zero.
a)
Balanced force
b)
Unbalanced force
5.
Which one is balanced?
a)
top
b)
bottom
c)
both
d)
neither
6.
What is the net force?
a)
5000 N right
b)
4000 N right
c)
40 N left
d)
4000 N left
7.
What is the magnitude (size) and direction of the net force?
a)
15 N to the left
b)
15 N to the right
c)
1 N to the left
d)
1 N to the right
8.
When a cannon fires a cannonball we observe Newton's third law. Which force is the reaction force?
a)
The cannon moving forward
b)
The cannonball moving forward
c)
The cannon moving backward
d)
The cannonball moving backward
9.
According to Newton's second law, if you increase the force applied to an object :
a)
it accelerates more
b)
it doesn't move
c)
you get more inertia
d)
it decelerates
10.
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
11.
Matt measured a small rubber ball and made 3 other balls of the same diameter from lead, foam, and wood. Which has the greatest inertia?
a)
rubber ball
b)
lead ball
c)
foam ball
d)
wood ball
12.
According to Newton’s first law of motion, a moving object that is not acted on by an unbalanced force will
a)
remain in motion.
b)
eventually come to a stop.
c)
change its momentum.
d)
accelerate.
13.
What law?
a)
1st
b)
2nd
c)
3rd
14.
This person bought coffee and put it on the seat next to them. If they stopped quickly and the coffee spilled which law would that represent?
a)
Newton's 1st Law
b)
Newton's 2nd Law
c)
Newton's 3rd Law
15.
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
16.
A 20 kg bike accelerates at 10 m/s2.  what was the force
a)
25
b)
200 N
c)
20 N
d)
10 N
17.
The tendency of an object to resist changes in its motion is...
a)
inertia
b)
force
c)
acceleration
d)
velocity
18.
Any push or pull on an object.
a)
force
b)
velocity 
c)
inertia
d)
momentum
19.
A Newton is a unit of...
a)
force
b)
inertia
c)
acceleration
d)
velocity
20.

Which law of motion says that you must push or pull objects harder if they have more mass?

a)

1st

b)

2nd

c)

3rd

d)

4th

21.

What law is best described by inertia?

a)

1st

b)

2nd

c)

3rd

d)

law of conservation of mass

22.

What is Newton's First Law

a)

F=ma

b)

Every action has an equal and opposite reaction

c)

An object at rest stays at rest, an object in motion stays in motion.

d)

Friction

23.

Newton's third law states that any action will have a(n) _______ and ______ reaction

a)

Equal and similar

b)

Equal and opposite

c)

Equal and different

d)

Greater and opposite

24.

What is this graph representing?

a)

Constant Speed

b)

Acceleration (speeding up)

c)

Deceleration (slowing down)

d)

No motion

25.

How much force is needed to accelerate a 3kg skateboard at 5m/s2.

a)

8N

b)

1.6N

c)

0.6N

d)

15N

26.

How much force is needed to accelerate a 25kg bowling ball at 2m/s2.

a)

50N

b)

5N

c)

12.5N

d)

100N

27.

If a 2kg bird is pushed by the wind with a force of 2N, how fast does the bird accelerate?

a)

1 m

b)

2 m/s2

c)

4m/s2

d)

1 m/s2

28.
What is the FORCE? 
a)
5 N
b)
10 N
c)
400 N
d)
0 N
29.
Is this a balanced or unbalanced force?
a)
Balanced
b)
Unbalanced
c)
Neither
d)
Both
30.
What does this graph represent?
a)
Constant Speed
b)
Acceleration
c)
Not moving
31.
How long did it take this object to travel back to its reference/starting point?
a)
20 s
b)
30 s
c)
60 s
d)
100 s
32.
At 60 seconds, how far had this object traveled? 
a)
0 m
b)
10 m
c)
20 m
d)
40 m
33.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
34.
What is happening at D?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
35.
What is happening at C?
a)
Stationary
b)
Accelerating
c)
Fast steady speed; moving away from the starting position
d)
Slower steady speed; moving away from the starting position
36.
What does this graph represent?
a)
Constant speed
b)
Acceleration
c)
Not moving
37.
Calculate the average speed (in miles per hour) of Cassandra who runs a 18 mile marathon in 6 hours.
a)
24 m/hr
b)
3 m/hr
c)
0.333 m/hr
d)
12 m/hr
38.
Calculate the distance (in miles) that Daniel bikes if he maintains an average speed of 26 miles/hr for 7 hours
a)
33 miles
b)
3.71 miles
c)
182 miles
d)
676 miles
39.
Forrest Gump ran 720 miles in 120 hours.  How fast was Forrest Gump running?
a)
72 mph
b)
600 mph
c)
88 miles
d)
6 mph
40.
What type of speed is this graph showing?
a)
constant speed
b)
not moving
c)
speed increasing
d)
speed increasing at a constant rate
41.
What happened during A to B point?
a)
not moving
b)
increasing speed at a constant rate
c)
moving at a constant speed
d)
moving at 10 m/s2 acceleration
42.

When does a yo-yo have the most potential energy?

a)

When it's at its highest point.

b)

When it's at its lowest point.

c)

When it's moving between its highest and lowest points.

d)

When it's moving at its top speed.

43.

Four cars are positioned at the top of a hill. Which car has the most potential energy?

a)

A

b)

B

c)

C

d)

D

44.

When a roller coaster is at the top of a hill it has

a)

high potential energy

b)

high kinetic energy

c)

low potential energy

d)

equal amounts of kinetic and potential energy

45.

When a roller coaster is at the bottom of a hill it has

a)

high potential energy

b)

high kinetic energy

c)

low kinetic energy

d)

equal amounts of kinetic and potential energy

46.

Which truck pulled 2,000 pounds at the average speed of 2 yards per minute?

a)

Chevy

b)

Dodge

c)

Nissan

d)

Ford

47.

Runner A ran 12 miles in 4 hours and Runner B ran 9 miles in 3 hours. Which runner had the greatest average speed?

a)

Runner A

b)

Runner B

c)

Both runners had the same average speed.

48.

What is the energy transformation that occurs in an electric pencil sharpener?

a)

mechanical energy to electrical energy

b)

electrical energy to mechanical energy

c)

radiant energy to sound energy

d)

chemical energy to mechanical energy

49.
What kind of energy is represented in the picture?
a)
Thermal
b)
Chemical
c)
Sound
d)
Nuclear
50.
According to the Law of Conservation of Energy, energy cannot be _________ or ____________. 
a)
destroyed, destroyed
b)
created, saved
c)
created, destroyed
d)
lost, found
51.

Which has the MOST inertia?

a)
b)
c)
d)
52.

Objects with greater _________ also have greater inertia.

a)

speed

b)

mass

c)

force

d)

friction

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