Energy and Matter: Unit 1

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Across
  1. 1. A system that does not exchange matter or energy with the environment.
  2. 8. The transfer of thermal energy from one material to another by electromagnetic waves.
  3. 10. The transfer of thermal energy from a region of higher temperature to a region of lower temperature. Heat can also refer to the amount of energy transferred during this process.
  4. 11. A decrease in a material’s volume when the temperature is decreased.
  5. 12. The study of heat.
  6. 16. Stored energy due to the interactions between objects or particles.
  7. 19. The measure of the average kinetic energy of the particles in a material.
  8. 20. the object that gains energy from the energy transfer.
Down
  1. 2. When the temperatures of materials that are in contact are the same.
  2. 3. The transfer of thermal energy by collisions between particles of matter.
  3. 4. The transfer of thermal energy by the movement of particles from one part of a material to another.
  4. 5. Movement in all directions and at different speeds.
  5. 6. Energy due to motion
  6. 7. The movement of substances from an area of higher concentration to an area of lower concentration.
  7. 9. The amount of thermal energy it takes to increase the temperature of 1 kg of a material by 1C.
  8. 13. The object that provides energy for energy-transfer.
  9. 14. A system that exchanges matter or energy with the environment.
  10. 15. The change in state from a liquid to a gas.
  11. 17. An increase in a material’s volume when the temperature is increased.
  12. 18. The result of the motion of all the particles, and the distance and attractions between those particles in the system.