Physics Chp 9-12

123456789101112131415161718192021222324252627
Across
  1. 3. is the temperature at which liquid change to gas
  2. 5. it is a process of heat transfer when solid molecules gain energy, vibrate faster and collide with its neighbouring molecules
  3. 7. it is a process of heat transfer when the hotter molecules are less dense and rises up, while the cooler molecules are denser and sinks down replacing the hotter molecules
  4. 8. is a thermometer that consists of two different metal wires joined at the end
  5. 9. is the energy needed to change the state of the substance without change in temperature
  6. 13. unit of latent heat
  7. 17. is a measure of hotness or coldness
  8. 19. materials that allow heat to pass through quickly
  9. 20. SI unit of temperature
  10. 23. a process where liquid change to solid
  11. 24. its molecules are arranged very far apart and they have very weak intermolecular forces
  12. 27. liquid used in clinical thermometer
Down
  1. 1. is the temperature at which solid change to liquid
  2. 2. is the energy needed to change the temperature of a substance by one degree Celsius or one Kelvin
  3. 4. the expansion or increase in length of the liquid in the thermometer for a unit change of temperature
  4. 6. materials that does not allow heat to pass through quickly
  5. 10. is used to measure temperature
  6. 11. it is a process where liquid molecules at the surface gain enough energy to overcome the intermolecular forces and escape as gas molecules
  7. 12. is to prevent the liquid to flow back into the bulb of the thermometer
  8. 14. a process where gas change to liquid
  9. 15. a process where solid change to liquid
  10. 16. its molecules are arranged closely packed together and has stronger intermolecular forces
  11. 18. it is a process of heat transfer by infra-red waves
  12. 21. its molecules are arranged slightly further apart but still close together and they move by sliding past each other
  13. 22. is the difference between the lowest point and the highest point of the thermometer
  14. 25. the empty spaces between earth and sun
  15. 26. a process where liquid change to gas