Everyday examples of energy transformation

📚 Quick Study Guide

• 🔥 Energy Transformation: The process of changing energy from one form to another.
• 💡 Types of Energy: Kinetic (motion), potential (stored), thermal (heat), chemical (bonds), electrical (charge), radiant (electromagnetic).
• 🚗 Example - Car Engine: Chemical energy (fuel) $\rightarrow$ Thermal energy (combustion) $\rightarrow$ Kinetic energy (motion).
• ☀️ Example - Solar Panel: Radiant energy (sunlight) $\rightarrow$ Electrical energy.
• 🌱 Example - Photosynthesis: Radiant energy (sunlight) $\rightarrow$ Chemical energy (glucose).
• 🔋 Law of Conservation of Energy: Energy cannot be created or destroyed, only transformed.
• ⚙️ Efficiency: Not all energy transformations are 100% efficient; some energy is lost as heat.

🧪 Practice Quiz

1. Which of the following is an example of electrical energy transforming into light and thermal energy?
   1. A. A burning candle
   2. B. A ringing telephone
   3. C. A lit lightbulb
   4. D. A moving car
2. In a hydroelectric dam, what energy transformation takes place?
   1. A. Chemical to electrical
   2. B. Potential to kinetic to electrical
   3. C. Thermal to kinetic to electrical
   4. D. Nuclear to thermal to electrical
3. What type of energy transformation occurs during photosynthesis in plants?
   1. A. Chemical to radiant
   2. B. Radiant to chemical
   3. C. Kinetic to potential
   4. D. Potential to kinetic
4. When you pedal a bicycle, what energy transformation is primarily occurring?
   1. A. Chemical (from food) to kinetic
   2. B. Kinetic to potential
   3. C. Electrical to kinetic
   4. D. Radiant to thermal
5. A toaster transforms electrical energy into which form(s) of energy?
   1. A. Sound energy
   2. B. Thermal energy
   3. C. Thermal and radiant energy
   4. D. Chemical energy
6. Which of the following best describes the energy transformation in a wind turbine?
   1. A. Solar to electrical
   2. B. Potential to electrical
   3. C. Kinetic to electrical
   4. D. Chemical to electrical
7. What energy transformation occurs when you strike a match?
   1. A. Kinetic to chemical to thermal and radiant
   2. B. Potential to kinetic to electrical
   3. C. Electrical to thermal to radiant
   4. D. Thermal to radiant to kinetic