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Thrills and Chills

Total questions: 90

Worksheet time: 8hrs 30mins

Name
Class
Date
1.
Calculate the PE of a 2 kg cat perched 10 meters above the ground. 
a)
20 J
b)
200 J
c)
2.04 J
d)
200 W
2.
Calculate the work needed to raise a 3 kg cat up to a height of
4 m.
a)
12 J
b)
0 J
c)
120 J
d)
1.22 J
3.
When my velocity triples, my kinetic energy increases by ______ times.
a)
9
b)
 3 
c)
1.5
d)
4.5
4.
Calculate the Kinetic Energy (KE) of a girl whose mass is 50 kg who is moving at 4 m/s.
a)
200 J
b)
800 J
c)
400 J
d)
100 J
5.
Sue lowers a stack of books with a mass of 20 kg over a distance of 2 meters.  Calculate work.
a)
400 J
b)
-40 J
c)
-400 J
d)
-20 J
6.
A 10.0 kg box is accelerated from 2.0 m/s to 4.0 m/s.  What is the amount of work in joules needed to accelerate the box?
a)
50.0
b)
60.0
c)
20.0
d)
45.0
7.
True or false: when the distance an object moves is zero the work done on the object is also zero.  
a)
True
b)
False
8.
Belly-Flop Bernie dives from atop a tall flagpole into a swimming pool below. His potential energy at the top is 10,000J. What is his kinetic energy when his potential energy reduces to 9.7J?
a)
9.81J
b)
10,000J
c)
9.7J
d)
9,990.3J
9.
What is the work done when a 20-N force pushes a cart 3.5 m?
a)
70J
b)
6.8J
c)
23.5J
d)
17.5J
10.
How much work is done on a vacuum cleaner pulled 3 m by a force of 50 N at an angle of 30-degrees above the horizontal?
a)
50J
b)
80J
c)
130J
d)
240J
11.
As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy? 
a)
Both the potential energy and kinetic energy decrease
b)
The potential energy decreases while the kinetic energy increases 
c)
The kinetic energy decreases while the potential energy increases 
d)
Bothe the potential energy and kinetic energy increase 
12.
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
13.
When you see the word "MOVING" what should you think?
a)
Unbalanced
b)
Balanced
c)
Potential Energy
d)
No Work
14.
When you see the word "MOVING" what should you think?
a)
Work
b)
Balanced
c)
Potential Energy
d)
No Work
15.
When you see the word "MOVING" what should you think?
a)
Kinetic Energy
b)
Balanced
c)
Potential Energy
d)
No Work
16.
When you see something that is stationary or not moving what should you think?
a)
Unbalanced
b)
Balanced
c)
Kinetic
d)
Work
17.
Heavier objects fall faster than light ones.
a)
True
b)
False
18.
Force is a form of energy.
a)
TRUE
b)
FALSE
19.
Energy of a rock perched on a cliff is an example of...
a)
gravitational
b)
elastic
c)
chemical
d)
kinetic
20.
Energy from a compressed spring would be an example of...
a)
kinetic
b)
elastic
c)
gravitational
d)
chemical
21.
How do you calculate power?
a)
P = W/t
b)
P = E/t
c)
P = w * t
d)
P = bbq/chicken
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.
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
27.
A force exerted over a distance to move an object is ______________________.
a)
power
b)
work
c)
momentum
d)
Watt
28.
If 150 Joules of work is needed to move a box 10 meters, what force was used? 
a)
1500 N
b)
15 N
c)
1.5 N
d)
150 N
29.
If 68 Joules were necessary to move a 4 Newton crate, how far was the crate moved?
a)
272 m
b)
17 m
c)
4.05 m
d)
272 cm 
30.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
31.
Gravitational potential energy depends on the ________ and ________ of the object. 
a)
Height and mass
b)
Friction and movement
c)
Mass and Movement
d)
Height and Friction 
32.
When you release a stretched rubber band, the rubber band has ________ energy. 
a)
kinetic 
b)
potential
c)
none of the above
d)
all of the above 
33.
Why does the total amount of mechanical energy stay constant in a system?
a)
energy is not created or destroyed
b)
energy leaves
c)
energy enters
d)
energy is not converted from one form into another
34.

Two equal mass marbles are at the top of a ramp. One marble falls to the ground off the back while the other rolls down the ramp. What is true about the marbles when they reach the ground?

a)

The marble that rolled down the ramp is moving faster than the marble that fell.

b)

The marble that fell down the back of the ramp is moving faster than the marble that rolled.

c)

The marble that rolled down the ramp is not moving when it reaches the ground.

d)

The two marbles are moving with the same speed.

35.

Which of the following is defined as an energy transfer?

a)

kinetic energy

b)

work

c)

potential energy

d)

chemical energy

36.

An 80 kg skier stands at the top of a 40 meter slope. What is her gravitational potential energy before she skies down the slope?

a)

3200 J

b)

31,360 J

c)

15,680 J

d)

19.6 J

37.

What is the kinetic energy of an 9 kg bowling ball rolling at 3.30 m/s?

a)

29.7 J

b)

323.4 J

c)

49.005 J

d)

14.85 J

38.

An object has 12.4 J of potential energy and 23.5 J of kinetic energy. What is the mechanical energy of the system?

a)

11.1 J

b)

1.895 J

c)

35.9 J

d)

291.4 J

39.

If you hold a 20 N object 2 m off of the ground, how much work have you done?

a)

40 J of Work

b)

10 J of Work

c)

No Work

d)

18 J of Work

40.

If you drive your 1,000 kg car from sea level up to the Nu'uanu Pali lookout, which is 366 m above sea level, how much will you have increased your car's gravitational potential energy?

a)

3,000,000 J

b)

366,000 J

c)

3,586,800 J

d)

586,800 J

41.

What is the kinetic energy of a 4 kg rock falling through the air at 5 m/s?

a)

10 J

b)

50 J

c)

20 J

d)

200 J

42.

If a rock falls from a cliff, at what point are its kinetic energy and its potential energy the same? Ignore air resistance.

a)

Just as it starts to fall

b)

just before it hits the bottom

c)

halfway down

d)

never

43.

If two rocks are launched through the air at the same speed, but one has twice as much mass as the other, how do their kinetic energies compare?

a)

The kinetic energy of the two rocks is the same because they have the same speed

b)

The rock with the greater mass will only move a small distance and then fall straight to the ground

c)

The two rock could not have the same speed if they have different masses

d)

The rock with the greater mass has more kinetic energy than the rock with less mass even though they are traveling at the same speeds because both mass and speed affect kinetic energy.

44.

You’re watching a volleyball game and someone asks you what type of energy best describe the movement of the volleyball players. Which of the following choices should your answer be in order to be correct?

a)

Chemical

b)

Sound

c)

Mechanical

d)

Potential

45.

Where would a car traveling on a roller coaster track have the most potential energy?

a)

At the bottom

b)

Halfway to the top

c)

at the top

d)

halfway to the bottom

e)

It is always the same

46.

What would happen to the kinetic energy of an object if you doubled the mass?

a)

The kinetic energy would be cut in half

b)

The kinetic energy would double

c)

The kinetic energy would triple

d)

It would stay the same because mass does not effect kinetic energy

47.

If a 2 kg ball is traveling at 4 meters per second, what is its kinetic energy?

a)

1 J

b)

2 J

c)

4 J

d)

8 J

e)

16 J

48.

Which point has the most kinetic energy?

a)

Ball G

b)

Ball F

c)

Ball E

d)

Ball D

e)

Ball A

49.

As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?

a)

Both the potential energy and kinetic energy decrease

b)

The potential energy decreases while the kinetic energy increases

c)

The kinetic energy decreases while the potential energy increases

d)

Both the potential energy and kinetic energy increase

50.

For work to be done on an object,

a)

some force need only be exerted on the object.

b)

the object must move some distance as a result of a force.

c)

the object must move, whether or not a force is exerted on it.

d)

the object must not move.

51.

Energy is the rate at which work is done

a)

True

b)

False

52.

A 35 kg chair is lifted 5 m off the ground. What is its potential energy?

a)

175 J

b)

30 J

c)

1715 J

d)

40 J

53.

What is the kinetic energy of a 1-kilogram ball is thrown into the air with an initial velocity of 30 m/sec?

a)

30 J

b)

450 J

c)

900 J

d)

29 J

54.

What is the potential energy of a 3 kilogram-ball that is on the ground?

a)

9.8 J

b)

3 J

c)

1 J

d)

0 J

55.

A 75kg refrigerator is located on the 70th floor of a skyscraper (300 Meters above the ground). What is it's potential energy?

a)

220,500 J

b)

225,000 J

c)

375 J

d)

39.2 J

56.

If Ronnie is driving a truck with a velocity of 40m/s and the truck has a mass of 1120kg then the truck has __________ energy in the amount of _________.

a)

POTENTIAL ENERGY in the amount of 439,040 J

b)

POTENTIAL ENERGY in the amount of 896,000 J

c)

KINETIC ENERGY in the amount of 439,040 J

d)

KINETIC ENERGY in the amount of 896,000 J

57.

There is a bell at the top of a tower that is 45 m high. The bell weighs 19 kg. When the bell is ringing it has 38 J of kinetic energy. What is the mechanical energy of the bell?

a)

8379 J

b)

8417 J

c)

32,490 J

d)

102 J

58.

If a bird is flying through the air with 10 J of kinetic energy and then it lands on the ground and has 0 J of potential energy what is the mechanical energy of the bird?

a)

0 J

b)

1 J

c)

10 J

d)

100 J

59.

Which two forces do NO work on the gold block?

a)

Fa

b)

Fg

c)

Ff

d)

Fn

60.
Which statement describes a vector?
a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
 direction
61.
What is the SI unit of measurement for force?
a)
lbf
b)
Kilograms
c)
Newtons
d)
m/sec^2
62.
Which statement describes a vector?
a)
It has magnitude but no direction
b)
It has direction but no magnitude
c)
It has both direction and magnitude
d)
It has constant magnitude but no
 direction
63.
A vector is a mathematical structure that has both _______ and _______.
a)
direction, magnitude
b)
scope, sequence
c)
meat, potatoes
d)
scalar, vector
64.
What is the magnitude of the resultant?
a)
17.03 m
b)
70 m
c)
30 m
d)
55.60 m
65.

A cat walks 3 meters west toward a laser, then jumps 5 meters due south of the laser when it sees a thing. What is the total distance the cat has traveled (to the nearest tenth)?

a)

3.0m

b)

5.0m

c)

8.0m

d)

5.8m

66.

A cat walks 3 meters toward a laser, then jumps 5 meters due south of the laser when it sees a thing. What is the displacement of the cat (to the nearest tenth)?

a)

3.0m

b)

5.0m

c)

8.0m

d)

5.8m

67.

You walk 80m east on FM 518 to get some Whataburger. After getting there, your friend texts you that Red River is giving out free stuff so you head the 65 m south there. After that, you decide to head to the gas station for a nice drink to cool down, you head the 80 m west there. Suddenly you realize you forgot your wallet at school, you wonder, "how did I buy all that stuff?" and you run the 65m north back. What is your total displacement?

a)

0m

b)

290m

c)

518m

d)

80m

68.
At which point(s) on the roller coaster is the gravitational potential energy at its maximum?
a)
A
b)
B
c)
C
d)
D
69.
At which point(s) on the roller coaster is the kinetic energy at its maximum?
a)
A
b)
B
c)
C
d)
D
70.
In diagram 2, if the mass of the car is 600 kg, what is the change in potential energy from point A to point B?
a)
411,600 J
b)
294,000
c)
176,400 J
d)
117,600 J
71.
In diagram 2, if the 600 kg cart is initially at rest, what is its velocity at point B?
a)
19.8 m/s
b)
15.0 m/s
c)
10.3 m/s
d)
3.8 m/s
72.

The given graph shows the releation between gravitional potential energy & height . If the mechanical energy at height A= 0.49 what is the kinetic energy

a)

0.10 j

b)

0.01 j

c)

0.5 j

d)

0.49 j

73.
Work is:
a)
A transfer of energy by a force to move and object
b)
Something you get paid for
c)
Something you take home
d)
Makes you sweat
74.
On a roller coaster, where is maximum potential energy?
a)
At the bottom of a big hill
b)
When going around a corner
c)
When going upside down
d)
At the top of a big hill
75.
What force ultimately slows the roller coaster to a stop?
a)
Applied
b)
Normal
c)
Friction
d)
Magnetic
76.
When an object is in circular motion it is constantly changing its velocity.
a)
True
b)
False
77.
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
78.
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
79.
Which represents the acceleration of the ball?
a)
A
b)
B
c)
C
d)
D
80.
Which of the following is the unit for centripetal force?
a)
J
b)
m/s2
c)
kg⋅m/s
d)
N
81.
What is gravitational force?
a)
a force that attracts any object
b)
a force that pushes any object
c)
a force that shrinks any object
d)
a force that enlarges anyobject
82.

Which graph represents what happens to Fg between two objects if the distance between them increases?

a)
b)
c)
d)
83.

What happens to Gravitational force if I double both of the masses and double their distance?

a)

stays the same

b)

half as big

c)

4x bigger

d)

2x bigger

84.
Who created the Universal Law of Gravitation?
a)
Copernicus
b)
Newton
c)
Kepler
d)
Galileo
85.
In this equation...
a)
G is the gravitational field strength
b)
r is the distance between the 2 masses
c)
F is the repulsive gravitational force
d)
m is the momentum of the mass
86.
What states that "every object in the universe attracts every other object"?
a)
Law of Universal Gravitation
b)
Newton's First Law of Motion
c)
My mother
d)
Inertia & gravity
87.
Which of the following is Newton's Law on Gravitation?
a)
F=Gm1m2/r
b)
F = Gm1m2/r2
c)
F = Gm1m2/2r
d)
F = m1m2/2r
88.
Force of gravity is directly proportional to
a)
Mass
b)
Weight
c)
Distance
d)
Time
89.
Two asteroids exert a gravitational force, F, on each other. Some time later, the asteroids are now three times as far from each other as before. Which of the following represents the gravitational force at this distance? 
a)
F/3
b)
F/2
c)
F/6
d)
F/9
90.
Two objects are attracted to each other with 36 N of gravitational force.
What would the force between them be if the distance between them were doubled?
a)
9
b)
18
c)
72
d)
144

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