WorksheetsPre-Test - Work, Power, and Energy Unit (Roller Coaster Physics)
Total questions: 15
Worksheet time: 12mins
Name
Class
Date
1.
You apply a force of 18 N to a dresser and move it 3.0 m. How much work did you do on the dresser?
a)
54 N
b)
6.0 J
c)
54 J
d)
27 J
2.
What is the kinetic energy of a 9 kg book that has a speed of 4 m/s?
a)
18 J
b)
36 J
c)
72 J
d)
144 J
3.
What is the potential energy done in lifting a 50 kg barbell 6 m above the floor?
a)
150 J
b)
300 J
c)
1470 J
d)
2940 J
4.
What is the average power generated by Peter Quill aka Star Lord (m = 100 kg) running up a flight of stairs rising vertically 6 .0 m in 5.0 s?
a)
0.03 W
b)
817 W
c)
1176 W
d)
1993 W
5.
Is this an example of work?
A book falls off a table and free falls to the ground.
A book falls off a table and free falls to the ground.
a)
True
b)
False
6.
Is this an example of work?
A teacher applies a force to a wall and becomes exhausted.
A teacher applies a force to a wall and becomes exhausted.
a)
True
b)
False
7.
Is this an example of work?
A waiter carries a tray full of meals above his head by one arm straight across the room at constant speed.
A waiter carries a tray full of meals above his head by one arm straight across the room at constant speed.
a)
True
b)
False
8.
An arrow in a bow has 50 J of potential energy. Assuming no loss of energy to heat, how much kinetic energy will it have it has been shot?
a)
140 J
b)
50 J
c)
70 J
d)
35
9.
Energy is changed from on form to another with no net loss or gain.
a)
true
b)
false
10.
Energy of motion is which type of energy?
a)
Potential
b)
Kinetic
c)
Sound
d)
Gravitational
11.
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
12.
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
13.
On a roller coaster, where is maximum kinetic 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
14.
According to which law of energy, energy can't be created or destroyed?
a)
First law of motion
b)
The law of tacos
c)
Laws of Energy
d)
law of conservation of energy
15.
What type of energy is in this picture?
a)
Kinetic
b)
Potential
c)
Electromagnetic
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