Across
- 1. Ratio of useful energy output to total energy input
- 3. Manipulation of matter on an atomic, molecular, and supramolecular scale
- 6. Unit of energy often used in food
- 7. Basic unit of a chemical element, central in energy changes in reactions
- 11. Amount of matter in an object, often a factor in potential energy
- 15. Material that resists energy transfer
- 16. Reaction that releases energy
- 18. Reaction that absorbs energy
- 19. Energy stored in bonds of molecules
- 23. Energy transfer through electromagnetic waves
- 25. Study of heat and energy transfer
- 27. Energy stored due to position
- 28. Movement of energy from one place or object to another
Down
- 2. Heat transfer through fluid movement
- 4. SI unit of energy
- 5. Form of energy transfer between bodies due to temperature difference
- 6. Heat transfer through direct contact
- 8. Force that attracts two bodies toward each other, related to potential energy
- 9. Measure of the average kinetic energy of particles
- 10. Quantum of electromagnetic radiation
- 12. Force that opposes motion and converts kinetic energy to thermal energy
- 13. Substance that provides energy as a result of a chemical change
- 14. Energy due to motion or position
- 17. Energy transfer when a force is applied over a distance
- 20. Rate of energy transfer
- 21. Energy of motion
- 22. Total heat content of a system
- 24. Device that converts chemical energy into electrical energy
- 26. Type of energy harnessed from the sun
- 29. A set of interacting components considered to be a distinct physical entity for study