Physics

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Across
  1. 3. The weight or force that is produces when something presses or pushes against something else.
  2. 6. The ability of a surface to emit radiant energy compared to that of a black body at the same temperature and with the same area.
  3. 7. The process in which heat moves through a gas or a liquid as the hotter part rises and the cooler, heavier part sinks.
Down
  1. 1. expansion The tendency of matter to change in shape, area, and volume in response to a change in temperature through heat transfer.
  2. 2. The sending back of light, heat or sound from a surface.
  3. 4. The process in which energy is given off by one body, as particles or waves, and absorbed by another body.
  4. 5. body A body or surface that completely absorbs all radiant energy fall upon it with no reflection.