Complete Summary & Study Guide
📚 Key Terminology Flashcards – Work and Energy
⚡ WORK & ENERGY TERMS
- Work: Done when force causes displacement (W = F·d·cos θ)
- Energy: Capacity to do work or cause change
- Kinetic Energy: Energy due to motion (KE = ½mv²)
- Potential Energy: Energy due to position (PE = mgh)
- Power: Rate of doing work (P = W/t)
- Conservation of Energy: Energy cannot be created or destroyed, only transformed
🔄 TRANSFORMATION TERMS
- Energy Conversion: Changing from one form of energy to another
- Efficiency: Ratio of useful output to total input energy
- Mechanical Energy: Sum of kinetic and potential energy
- Commercial Unit: kWh used in electricity billing
⚖️ WORK CONDITIONS
- Positive Work: Force and displacement in same direction
- Negative Work: Force opposite to displacement
- Zero Work: No displacement or perpendicular force
🧮 Master Formula Sheet
⚡ WORK FORMULAS
🏃♂️ ENERGY FORMULAS
💡 CONSERVATION FORMULAS
🔑 IMPORTANT CONSTANTS & VALUES
🎪 Fun Facts & Applications
🚀 ENERGY IN SPACE
- Solar panels on satellites convert light to electrical energy
- Spacecraft use gravitational slingshots to gain kinetic energy
- Fuel cells convert chemical energy to electrical energy
🌊 RENEWABLE ENERGY
- Wind turbines convert kinetic energy of air to electrical energy
- Solar panels have ~20% efficiency (80% lost as heat)
- Hydroelectric dams convert potential energy of water to electrical energy
⚽ SPORTS APPLICATIONS
- Pole vaulter converts horizontal KE to vertical motion
- Gymnasts use conservation of energy in swinging motions
- Archers store elastic PE in bow, transfer to KE of arrow
🎓 Study Tips
📖 MEMORIZATION TRICKS
⚠️ COMMON MISTAKES TO AVOID
💡 QUICK CHECKS
