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6. What does a thermogram do?

  • I am unsure.
  • Measure the amount of infrared radiation emitted by an object.
  • Detect burglars and people trapped in collapsed buildings.

7. Describe the movement of particles in gases.

  • Move quickly in any direction.
  • Move around each other.
  • I am unsure.

8. The greater the temperature difference between an warm object and its cold surroundings...

  • The greater the amount of heat loss.
  • There'll be a small amount of heat loss occurring.
  • I am unsure.

9. Light, shiny surfaces are good absorbers and emitters of infrared radiation.

  • False
  • True
  • I am unsure.

10. Describe the arrangement of particles in solids.

  • Close together and regular pattern.
  • Tight and close.
  • I am unsure.

11. Why can't convection can't take place in solids?

  • I am unsure.
  • Because the particles are fixed and unable to move past each other.
  • Because convection can only happen in hot conditions.

12. What are 'thermal insulators'?

  • I am unsure.
  • Poor conductors of heat.
  • Excellent conductors of heat.