Energy Transformation
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- Marilyn Watts
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1 Background Transformation 1. What is energy? 2. What are the two main forms of energy? Describe them. 3. Match each form of energy to the correct description. a. Chemical a. of the movement of charged particles. b. Electrical b. of the moving particles in an object. c. Mechanical c. stored within the matter of the element. d. Radiant d. of vibrating particles. e. Sound e. that moves in electromagnetic waves f. Thermal f. The sum of energy due to position and movement g. Nuclear g. stored in substances. 4. What is the Law of Conservation of? 5. What is an energy transformation? 6. What happens to the amount of energy during an energy transformation? Use the terms energy source and energy receiver. 1
2 Part I: Plan Your Investigation 1. Question of Inquiry: 2. What do you need to do to answer this Question? Consider the setting, scale, and time frame that will be needed to observe the naturally occurring system to make observations and to answer the Question of Inquiry. 3. What are the variables that you will observe? Consider the boundaries of the naturally occurring system that will be observed. 4. What materials, equipment, and technology will you need for this investigation? 5. What safety precautions must be taken in this investigation? 6. Procedures. Record your procedure on the back of this worksheet or in your lab journal if needed. 2
3 Part II: Implement Your Investigation Collect, Record, and Organize Your Data 1. Data Table: Transformation Observations Station Source Form and Type of Source Receiver Transformations Observed Evidence of Transformation Hairdryer Battery powered Fan Lamp Solar Powered calculator Crumpling Paper Paper Spiral Diagrams of Natural Settings #1 Diagrams of Natural Settings #2 3
4 Part II: Implement Your Investigation Analyze Your Data 1. Describe the energy transformations that occur in a hairdryer. 2. Describe the energy transformations that occur in a battery-powered fan. 3. Describe the energy transformations that occur after you turn on a lamp. 4. Describe the energy transformations that occur in a solar powered calculator. 5. Describe the energy transformations that occur when you crumple paper. 6. Describe the energy transformations that occur when turning on a lamp and holding a paper spiral over it. 7. Describe the energy transformations that occur when energy is transferred from the Sun to plants and to a deer. 4
5 Part II: Implement Your Investigation, continued Analyze Your Data 8. Use your data from any station of the investigation to support the Law of Conservation of : cannot be created or destroyed it can only change form. 9. Use your data from the investigation to support the following statement: In energy transformations, energy decreases in some parts of the system, and increases in other parts, but the total amount of energy remains the same. 10. Identify the energy transformations occurring in the following situations. A. A hot oven to B. A burning match to and C. Playing a guitar to D. Melting snow to E. Exploding fireworks to and and 11. The illustration below shows a wind turbine system. Identify the energy transformations that are occurring in the wind turbine system. 5
6 Reflections and Conclusions 1. Was there a relationship between the variables you observed? 2. Where could errors have been made while collecting or organizing data? 3. What do you conclude about this investigation? 4. What would you do differently if you were to conduct this experiment again? 6
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