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Semester 1 Study Guide - Final Exam

Total questions: 95

Worksheet time: 7hrs 48mins

Name
Class
Date
1.

Which of these are measurements of power?

a)
100 joules
b)
100 watts
c)

100 joules/second

d)
100 hertz
2.
Which of the following is true about work?
a)
It measures how quickly an object accelerates
b)
It measures how much effort is applied over a distance.
c)
It measures the change of an object's rate of speed.
d)
It measures how much time it takes to move an object.
3.
What units do we use to measure work?
a)
watts
b)
newtons
c)
joules
d)
meters
4.
A kid throws a ball with a force of 70N over 1.1 meters. How much work did he do?
a)
77 joules
b)
70 joules
c)
7.7 joules
d)
11 joules
5.
How do you know when a force has been applied to an object?
a)
It moves.
b)
It flies.
c)
It accelerates.
d)
It gets bigger.
6.
What is the equation for calculating power?
a)
distance / time
b)
work x time
c)
work / time
d)
force x distance
7.
In which of these cases is work being done? 
a)
A student sleeps all night.
b)
A student pushes a locked door that does not move.
c)
A student carries his chair into another room.
d)
A student sits on the carpet.
8.
A 500N block is lifted 10 m. How much work was done?
a)
5000 J
b)
500 J
c)
50 J
d)
5 J
9.
A force exerted over a distance to move an object is ______________________.
a)
power
b)
work
c)
momentum
d)
Watt
10.

The formula for work is

a)

work/time (P = W/t)

b)

force × distance (W = Fd)

c)

distance/time (s = d/t)

d)

mass × acceleration (F = ma)

11.

The formula for power is

a)

work/time (P = W/t)

b)

force × distance (W = Fd)

c)

distance/time (s = d/t)

d)

mass × acceleration (F = ma)

12.

Work is done when which two things happen?

a)

an object is moved

b)

power is converted into Newtons

c)

an object has been subjected to force (unbalanced)

d)

an object stays in place

13.

Work is only done when an object __________

a)

moves

b)

stays still

c)

articulates

d)

conjugates

14.

Use one of these equations to answer this question (W = Fd) and (P = W/t): Toph pushes against the turret with 500 Newtons of Force. It stays in place. How much work has been done?

a)

1200 Joules of work

b)

500 Joules of work

c)

No work has been done

d)

200,000 Joules of work

15.

Use one of these equations to answer this question (W = Fd) and (P = W/t): When Aang fights Ozai, he wields 100,000 Joules in 25 seconds. What is his power?

a)

4,000 J/s (Watts)

b)

250,000 J/s (Watts)

c)

125,000,000 Newtons

d)

2,000,000 Joules

16.
What is NOT one of the six simple machines?
a)
Lever
b)
Pulley
c)
Hinge
d)
Screw
17.
What is the equation for power and energy?
a)
P = E/t
b)
E = P/t
c)
T = P x E
d)
P = W/t
18.
What is being transferred as you do work?
a)
Energy
b)
Heat
c)
Power
d)
Gravitational Potential Energy
19.
Which one is NOT a simple machine?
a)
Lever
b)
Gear
c)
Wedge
d)
Pulley
20.
How do you calculate power?
a)
P = W/t
b)
P = E/t
c)
P = w * t
d)
P = bbq/chicken
21.
How do we calculate work?
a)
W = F * d
b)
w = f * D
c)
W = F * D
d)
w = f * d
22.
How much work is being done with 200 N of force over 426 meters?
a)
85,200 J
b)
45,620 J
c)
90,480 J
d)
62,329 J
23.
The SI unit of work is?
a)
Joules
b)
Watts
c)
Newtons
d)
meters
24.
The energy of movement is...? 
a)
Kinetic
b)
Potential
25.
Energy that is stored is called...
a)
Kinetic
b)
Potential 
26.
The SI unit for power is...?
a)
Watts
b)
Joules
c)
Newtons
d)
Meters
27.
What is the formula for Gravitational Potential Energy?
a)
PE = m*g*h
b)
KE = 1/2m*v2
c)
W = F*d
d)
P = W/t
28.
What is the formula for Kinetic Energy?
a)
PE = m*g*h
b)
KE = 1/2m*v2
c)
W = F*d
d)
P = W/t
29.
a)
A is Potential, B is Kinetic
b)
A is Kinetic, B is Potential
c)
A is Power, B is Work
d)
A is Work, B is Power
30.
What is g on Earth?
a)
9.8 m/s/s
b)
9.8 m/s
c)
42 m*s
d)
42 m/s/s
31.
1. A book weighing 1.0 newton is lifted 2 meters.  How much work was done?
a)
2 J
b)
0.5 J
32.
A force of 15 newtons is used to push a box along the floor a distance of 3 meters.  How much work was done?
a)
3 J
b)
45 J
33.
It took 50 joules to push a chair 5 meters across the floor. With what force wast the chair pushed?
a)
250N
b)
10N
34.
A force of 100 newtons was necessary to lift a rock.  A total of 150 joules of work was done.  How far was the rock lifted?
a)
1.5m
b)
15,000 m
35.
It took 500 newtons of force to push a car 4 meters.  How much work was done?
a)
2,000 J
b)
125 J
36.
A young man exerted a force of 9,000 newtons on a stalled car but was unable to move it.  How much work was done?
a)
9,000 J
b)
0 J= No work
37.
A set of pulleys is used to lift a piano weighing 1,000 newtons.  The piano lifted 3 meters in 60 seconds  How much power is used?
a)
16.67 watts
b)
50 watts
38.
How much power is used if a force of 35 newtons is used to push a box a distance of 10 meters in 5 seconds?
a)
70 watts
b)
1750 watts
39.
What is the power of a kitchen blender if it can perform 3,750 joules of work in 15 seconds?
a)
56, 250 watts
b)
250 watts
40.
How much work is done using a 500 watt microwave oven for 5 minutes?
a)
150,000 J
b)
2500 J
41.
How much work is done using a 60 watt light bulb for 1 hour?
a)
60 J
b)
216,000 J
42.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
43.
What would have the greatest kinetic energy?
a)
A car driving down a hill.
b)
A person running down a hill. 
c)
A ball rolling down a hill. 
44.
Which is the best example that something has kinetic energy?
a)
a. a car parked on a steep hill 
b)
b. a tennis ball rolling across the court
c)
c. a picture hanging on the wall 
d)
d. a piece of coal before it's burned 
45.
What is kinetic energy?
a)
energy of work
b)
energy of motion
c)
energy of gravity
d)
energy of power
46.

What two factors affect an object's kinetic energy?

a)

area and volume

b)

mass and weight

c)

weight and height

d)

mass and speed

47.

Where would this tossed baseball have the least amount of kinetic energy?

a)

point W

b)

point X

c)

point y

d)

point z

48.

Where would this tossed baseball have the greatest amount of kinetic energy?

a)

point W

b)

point X

c)

point y

d)

point z

49.

Increasing an object's mass will increase its kinetic energy.

a)

true

b)

false

50.

Increasing an object's speed will increase its kinetic energy.

a)

false

b)

true

51.

If all objects are moving as the exact same speed, which would have the greatest kinetic energy?

a)

tennis ball

b)

football

c)

notebook

d)

box of 20 textbooks

52.
As the velocity of an object decreases its KE will...
a)
increase
b)
decrease
c)
stay the same
53.
Why is it harder to stop a four-person bobsled than a three-person bobsled?
a)
the four-person sled has more KE
b)
the four-person sled has less KE
54.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
55.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
56.
What kind of energy is in a stretched rubber band?
a)
Potential
b)
Kinetic
57.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
58.
When a pendulum swings, at which point is kinetic energy highest?
a)
1
b)
2
c)
3
d)
4
59.
When a pendulum swings, at which point is potential energy at its greatest?
a)
1
b)
2
c)
3
d)
4
60.
Explain what happens to the potential energy of a rock as it falls off the side of a cliff.
a)
The kinetic energy decreases as the potential energy increases.
b)
The kinetic energy decreases as the potential energy decreases.
c)
The potential energy decreases as the kinetic energy increases.
d)
The potential energy decreases as the kinetic energy decreases. 
61.
When riding a roller coaster, you go up and down many hills. When do you have the maximum (most) kinetic energy?
a)
At the top of each hill.
b)
As you go down each hill.
c)
At the bottom of each hill.
d)
As you go up each hill.
62.

Potential energy depends on the ________ and ________ of the object.

a)

Height (position)

b)

Mass

c)

Speed

d)

Friction

63.

Which point has the most potential energy?

a)

G

b)

F

c)

B

d)

A

64.

At which point of the roller coaster is potential energy the greatest?

a)

W

b)

X

c)

Y

d)

Z

65.

The faster an object moves, the ________ kinetic energy it has.

a)

more

b)

less

66.
What is energy?
a)
rate of work
b)
Motion of an object
c)
ability to do work
d)
force over time
67.

Kinetic energy depends on the ________ and ________ of the object.

a)

Height (position)

b)

Mass

c)

Speed

d)

Friction

68.
2. The diagram to the right represents a diver’s motion from the top of a high diving board into a pool of water. At what point does the diver have the greatest kinetic energy and the least potential energy?
a)
1
b)
2
c)
3
d)
4
69.
A stretched rubber band.
a)
Potential
b)
Kinetic
70.
Gasoline in a car tank (car is not on).
a)
Potential
b)
Kinetic
71.

The coaster at B is at -

a)

Maximum PE, Minimum KE

b)

Minimum PE, Minimum KE

c)

Minimum PE, Maximum KE

d)

Maximum PE, Maximum KE

72.

Potential and Kinetic Energy have a _______________ relationship. This means that when one goes up (or increases) the other goes down (or decreases).

a)

inverse

b)

direct

73.

The equation KE = 1⁄2 mass x velocity2 is used to find which type of energy?

a)

Kinetic Energy

b)

Potential Energy

74.

The equation PE = mass x gravity x height is used to find which type of energy?

a)

Kinetic Energy

b)

Potential Energy

75.

Which of these has the most potential energy?

a)
b)
c)
d)
76.

Which passenger has the most potential energy?

a)

A

b)

B

c)

C

d)

D

77.
An apple sitting on the edge of the table.
a)
Potential
b)
Kinetic
78.
Aiming a snowball at a neighbor
a)
Potential
b)
Kinetic
79.
An apple rolling on a table
a)
potential
b)
kinectic
80.
A stretched rubberband
a)
potential
b)
kinetic
81.
Sitting on a stair step
a)
potential
b)
kinetic
82.
Jason kicks the soccer ball into the goal
a)
potential
b)
kinetic
83.
Elmo throws the football
a)
potential
b)
kinetic
84.
I wait in line for a ride at dollywood
a)
potential
b)
kinetic
85.
Suzy walks to class
a)
potential
b)
kinetic
86.
a rock falls off the filing cabinet
a)
potential
b)
kinetic
87.

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

88.

I am holding a balloon that is full of air, the balloon has

a)

kinetic energy

b)

potential energy

89.
Energy due to motion is ____________ energy. 
a)
Potential 
b)
Energy
c)
Kinetic
d)
Friction
90.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
91.
__________ is stored energy. 
a)
Potential
b)
Kinetic
c)
None of the above 
d)
All of the above 
92.
When you stretch a rubber band, you are storing __________ energy. 
a)
kinetic 
b)
potential
c)
none of the above
d)
all of the above 
93.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
94.
What kind of energy is in a moving skateboard?
a)
Potential
b)
Kinetic
c)
Both potential and kinetic energy
d)
none of the above
95.
What kind of energy is in a rock at the edge of a cliff?
a)
Potential
b)
Kinetic
c)
Both potential and kinetic energy
d)
none of the above

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