Energy Crossword Puzzle

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Across
  1. 4. A measure of the total kinetic energy possessed by particles in a substance.
  2. 5. Energy stored within a substance such as fuel or food that may be released when the substance is burnt or digested.
  3. 6. Stored energy of an object that is held above the Earth’s surface.
  4. 7. Energy that travels as vibrating waves and can be heard by our ears as sound.
  5. 10. added into ceilings and between the walls of a house to reduce heat transfer.
  6. 11. The conversion of one type of energy into another type of energy; for example the conversion of electrical energy used in an MP3 player into sound light and heat energy.
  7. 13. Process in which green plants convert light energy into chemical energy.
  8. 14. Vehicle braking system that stores some of the kinetic energy of a car as it slows down and uses this energy to power the car.
  9. 18. A label showing numbers of stars (usually from 1 to 6) which can be used to compare the energy efficiency of different appliances.
  10. 22. Energy stored inside an atom.
  11. 23. Form of energy that is visible such as that produced by the sun.
  12. 24. The ability to make a change happen; different forms include heat energy light energy and sound energy.
Down
  1. 1. Energy that causes charged particles to move.
  2. 2. A scheme that uses computer simulations to provide a star rating (to a maximum of 10 stars) to houses based on the effectiveness of the external walls against heat loss.
  3. 3. Energy cannot be created or destroyed. It can only be transferred from one object to another or transformed into another form of energy.
  4. 8. Energy stored within a stretched or compressed object like a spring or elastic material.
  5. 9. Unit of measurement for energy.
  6. 12. A new generation of flexible and cheap solar cells made from carbon-based materials.
  7. 15. The proportion of useful energy output from a device compared to the amount of energy that is input. This is usually expressed as a percentage.
  8. 16. The flow of energy from one object into another object; for example the flow of heat from a metal spoon to your hand or the flow of kinetic energy from a bat to a ball that it hits.
  9. 17. Diagram using arrows that shows the way energy is passed on or changed into other forms in a particular situation.
  10. 19. Stored energy possessed by an object such as elastic potential energy into chemical energy.
  11. 20. Energy possessed by a moving object.
  12. 21. This is done whenever an object is moved or is forced to change shape.