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Marble Energy Experiment

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by

Joshua Laguit

on 7 May 2014

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Transcript of Marble Energy Experiment

Question
Does the mass of an object affect its kinetic and potential energy? (Kinetic Energy and Potential Energy)
Marble Energy Experiment

Experiment
1. Stack books on top of each other.
2. Place one side of ramp on top of books.
3. Place one ball on top of ramp and time how long it takes to reach the bottom of the ramp.
4. Record data on table / graph.
5. Repeat for all other balls.
6. Repeat with all balls for 2 more trials.
Data
Analysis
Hypothesis
Materials
1 Ramp
3 equally sized books
Stopwatch
5 balls
Ping Pong Ball
Golf Ball
Wiffle Ball
Steel Ball
Marble
If the mass of the
object increases,
then the kinetic and potential energy
of the object will
also increase.
Conclusion
As we look at our data, we see that as mass gets bigger, it does not always increase. From the marble to the wiffle ball, the kinetic and potential energy decreases. From the steel ball to the golf ball, the kinetic and potential increases. Our hypothesis was incorrect, and we think that the mass does not play that big of a factor towards the potential and kinetic energy.
Research / Citations
Potential Energy
- http://www.physicsclassroom.com/class/energy/Lesson-1/Potential-Energy

Kinetic Energy
- http://www.physicsclassroom.com/class/energy/Lesson-1/Kinetic-Energy

Marble
Object
Steel Ball
Golf Ball
Wiffle Ball
Ping Pong Ball
Potential Energy
.23544
5.35626
.541512
.270756
Mass
2 g
5 g
45.5 g
4.6 g
2.3 g
Pre - Known Knowledge
Final Time
1.38 S
1.51 S
1.75 S
1.52 S
1.47 S
.5586
Kinetic Energy
13.78 J
28.77 J
382.11 J
26.12 J
13.97 J
Final Velocity
Ramp Height
12 cm
12 cm
12 cm
12 cm
12 cm
117.392
107.284
129.6
106.528
110.204
Potential Energy
Kinetic Energy
Kinetic Energy is the energy of motion. Any object that has motion, has kinetic energy
To find the kinetic energy of an object, you have to use this formula:
KE = 0.5 * mass * velocity
2
Kinetic Energy is calculated in Joules.
There is three types of kinetic energy:
Vibrational
- energy due to vibrations
Rotational
- energy due to rotational movement
Translational
- energy due to motion from one location to another
By:
Joshua Laguit
Trevor Babb
Eric Scott

Potential Energy is stored energy that can potentially happen.
The formula for Gravitational Potential Energy is:
PE gravitational = mass * gravitational field strength * height
There is two types of potential energy:
Gravitational
- energy stored in an object as the result of its vertical position or height
Elastic
- energy stored in elastic materials as the result of their stretching or compressing

The formula for Elastic Potential Energy is:
PE spring = 5 * spring constant * amount of compression
Full transcript