physical science poster

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Across
  1. 3. heat the amount needed to raise the temperature of 1 gram of a substance 1 degree celsium
  2. 8. the change of energy from one form to another
  3. 9. decay the emission of energy in the form of ionizing radiation
  4. 10. the force exerted by magnets when they attract or repel each other
  5. 11. the flow of electrical power or charge
Down
  1. 1. the amount of time that it takes one half of the atoms present to decay
  2. 2. radiation occurs when the nucleus of an atom becomes unstable and alpha particles are emitted to restore balance
  3. 4. measure of energy
  4. 5. circuit a path along which the whole current flow through each component
  5. 6. energy the form of energy that is transferred between systems or objects with different temperatures
  6. 7. circuit two or more paths for current to flow through