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

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