Lab Report: Energy

**Instructions:**
Save the lab to your computer with the correct unit number, lab name, and your name at the end of the file name (e.g., U1_Lab_Energy_Alice_Jones.doc).

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### Introduction

1. **What was the purpose of the experiment?**
Type your answer here: To find how the potential energy stored in a system changes as the distance between a ball on a ramp and the surface of the earth changes.

2. **What were the independent, dependent, and control variables in your investigation? Describe the variables for the first part of the experiment.**
Type your answer here:

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### Experimental Methods

1. **What tools did you use to collect your data?**
Type your answer here:

2. **Describe the procedure that you followed to collect the data for the first part of the experiment.**
Type your answer here:

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### Data and Observations

1. **Record your observations in the data table.**
Type your answer here:

**Table 1. Measurements Taken from a Simulation of a [insert mass value] kg Ball Released from Various Heights on a Ramp**

| Mass of ball (kg) | Drop height on ramp (m) | Potential energy (J) | Time to travel 1.0 m (s) | Speed (m/s) | Kinetic energy (J) |
|-------------------|--------------------------|----------------------|--------------------------|------------|--------------------|
| 3 kg (red) | 0.5 | 41 s | | | |
| 3 kg | 1.0 | 26 s | | | |
| 3 kg | 1.5 | 21 s | | | |
| 3 kg | 2.0 | 17 s | | | |
| 3 kg | 2.5 | 14 s | | | |
| 3 kg | 3.0 | 13 s | | | |

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### Conclusions

1. **What conclusions can you draw about how the amount of potential energy stored in a system changes as a ball is placed at varying heights on a ramp? Write an evidence-based claim.**
Type your answer here:

2. **What conclusions can you draw about how the final kinetic energy of a ball in a system changes as a ball is placed at varying heights on a ramp? Write an evidence-based claim.**
Type your answer here:

3. **Develop a model (diagram) that shows how different amounts of gravitational potential energy (GPE) are stored in the earth-ball system when the ball is raised to different heights on the ramp.**
Type your answer here:

4. **How did you use what you learned from the first part of the experiment to design a marble run?**
Type your answer here: