WorksheetsRoller Coaster Energy Lab
Total questions: 14
Worksheet time: 15mins
Name
Class
Date
1.
When a rubber band is stretched, it has __________________
energy.
energy.
a)
Potential
b)
Kinetic
c)
Nuclear
d)
Thermal
2.
In every energy transformation, some energy is always released, or "lost", as ___________ energy.
a)
Thermal
b)
Nuclear
c)
Electrical
d)
Mechanical
3.
The largest land predator is the male polar bear, which has a mass of around 500.00 kg. If the top
speed of a male polar bear is 11.0 m/s, how much KE does it have?
speed of a male polar bear is 11.0 m/s, how much KE does it have?
a)
15,400 Joules
b)
129,987 Joules
c)
30,250 Joules
4.
A roller coaster has a mass of 250 kg, and is 50 meters above the ground, what is the potential energy?
a)
122,625 Joules
b)
5,600 Joules
c)
234,799 Joules
5.
Kinetic energy is the energy of ____________ and potential energy is the energy of ________.
a)
heat, position
b)
static, motion
c)
motion, position
6.
Conservation of energy states that energy cannot be ________ or ________, but can be altered from one form to another.
a)
created, destryoed
b)
gravity, force
c)
heat, created
7.
Is this activity as an example of potential or kinetic energy Choose “PE” or “KE”:
The flexed string of an archer’s bow.
The flexed string of an archer’s bow.
a)
PE
b)
KE
8.
What is the Kinetic Energy of a 150 kg object that is moving with a speed of 15 m/s?
a)
10.0 J
b)
1.5 J
c)
16875 J
d)
168,750 J
9.
A bead is moving with a speed of 20 m/s at position A on the track shown in the figure. This track is friction-free, and there is no appreciable air resistance. What is the speed of the bead at point C?
a)
0 m/s
b)
34 m/s
c)
69 m/s
d)
20 m/s
10.
At which point(s) on the roller coaster is the gravitational potential energy at its maximum?
a)
A
b)
B
c)
C
d)
D
11.
At which point(s) on the roller coaster is the kinetic energy at its maximum?
a)
A
b)
B
c)
C
d)
D
12.
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
13.
What force ultimately slows the roller coaster to a stop?
a)
Applied
b)
Normal
c)
Friction
d)
Magnetic
14.
As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy?
a)
The PE and KE increase and decrease together
b)
The PE decreases while the KE increases
c)
Impossible to know without knowing the mass
100 %
