02_01_energy_worksheet.

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Energy Lab Worksheet Name: Simone R.J. Part 1: Rube Goldberg Interactive 1. Give three examples, from the lab, where potential energy was converted to kinetic energy. Example 1: the ball at the beginning of the simulation to when it is pushed by the metal ball. Example 2: the weight when it is attached to the rope to when the scissors cut the rope and it falls. Example 3: the stretched rubber band to when it launched the metal ball. 2. Describe the five adjustments you made to the Rube Goldberg device in order to keep the flow of energy going. Adjustment 1 Tilt the wooded board Adjustment 2 Attach the weight to the string Adjustment 3 Change the direction of the see saw Adjustment 4 Stretch the rubber band Adjustment 5 Attach the bucket to the string 3. Discuss how one of the adjustments you made in question 2 above was a constraint. Stretching the rubber band is a constraint because it is a vital condition for the machine to work Part 2: Design Your Own Rube Goldberg Device 4. Rube Goldberg Design In this section, include a drawing, video clip, or image of your device. Unless Otherwise Noted All Content © 2022 Florida Virtual School. FlexPoint Education Cloud™ is a trademark of Florida Virtual School.

5. Description In this section, include a clear written description and explanation of the work the device is designed to complete. Be sure to include descriptions of how the device works and properly identify all five (or more) energy conversions. The device’s goal is to turn on the lights, first the ball rolls down the ramp collecting speed to knock the books and the teddy bear over, this then flings the ball up to flip the switch turning the lights on. 6. Think about how constraints affected your design. If you created your device, explain one way you redesigned it after you tested it. If you created an image of a device, and did not actually test its function, then explain how you had to change your plan when you realized it would not work as you intended. I had to change the direction of the see saw for the device to work. Part 3: Energy Conversions 7. Record your data in the chart and include at least 5 potential-kinetic energy conversions shown in your device's construction. Example Item Description of potential-kinetic energy conversion Example Book The book had gravitational potential energy when it was on the table. Then as the book fell off the table, it was in motion and had kinetic energy . 1 Ball The ball had gravitational potential energy on the shelf before it rolled off and turned into kinetic energy 2 Book The book had gravitational potential energy till the ball hit it and it turned into kinetic energy . 3 Teddy bear The teddy bear had gravitational potential energy sitting on the shelf till the book hit it and it had kinetic energy . 4 Ball The ball had potential energy. Next the ball was shot upward and changed into kinetic energy. 5 Switch The switch turns the electrical energy into light energy . Part 4: Analysis Questions 8. Consider the device you created as a system. Is energy exchanged between your system (the device) and its surroundings? Give one example to support your statement. Yes, energy changed from potential to kinetic in my device. 9. Is matter exchanged between your system (the device) and its surroundings? Give one example to support your statement. No, all the matter stayed in the region 10. Is your device an open, closed, or isolated system? Explain. My device is a closed system because energy can travel through but matter cannot 11. What is the law of conservation of energy? Energy cannot be destroyed only transformed. Unless Otherwise Noted All Content © 2022 Florida Virtual School. FlexPoint Education Cloud™ is a trademark of Florida Virtual School.

12. Describe two examples of how the law of conservation of energy is demonstrated in the device you created. The energy in my device was only changed not destroyed. 13. In the lesson, an insulated container is presented as an example of an isolated energy system. Explain why this is a better example for a closed system. Insulated containers are not a true isolated energy system because it does not complete stop the heat flow between the system and its environment. Unless Otherwise Noted All Content © 2022 Florida Virtual School. FlexPoint Education Cloud™ is a trademark of Florida Virtual School.

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