1. Heat is energy in the process of being transferred from:

     a.  hot objects to cold objects

     b.  low pressure to high pressure

     c.  cold objects to hot objects

     d.  high pressure to low pressure

     e.  regions of low density toward regions of high density


 2. The change of state of ice into water vapor is known as:

     a.  deposition

     b.  sublimation

     c.  melting

     d.  condensation

     e.  crystallization


 3. The cold feeling that you experience after leaving a swimming pool on a hot, dry, summer day represents heat transport by:

     a.  conduction

     b.  convection

     c.  radiation

     d.  latent heat


4. Snow will usually melt on the roof of a home that is a:

     a.  good radiator of heat

     b.  good conductor of heat

     c.  poor radiator of heat

     d.  poor conductor of heat


 5. If the average temperature of the sun increased, the wavelength of peak solar emission would:

     a.  shift to a shorter wavelength

     b.  shift to a longer wavelength

     c.  remain the same

     d.  impossible to tell from given information


6. The sun emits a maximum amount of radiation at wavelengths near _____, while the earth emits maximum radiation near wavelengths of _____.

     a.  0.5 micrometers, 30 micrometers

     b.  0.5 micrometers, 10 micrometers

     c.  10 micrometers, 30 micrometers

     d.  1 micrometer, 10 micrometers


7. If the absolute temperature of an object doubles, the maximum energy emitted goes up by a factor of:

     a.  2

     b.  4

     c.  8

     d.  16

     e.  32


8. Suppose last night was clear and calm. Tonight low clouds will be present. From this you would conclude that tonight's minimum temperature will be:

     a.  higher than last night's minimum temperature

     b.  lower than last night's minimum temperature

     c.  the same as last night's minimum temperature

     d.  above freezing


9. Which of the following is an incorrect association?

     a.  albedo - percent of radiation reflected from a surface

     b.  kinetic energy - energy of motion

     c.  black body - selective absorber

     d.  long-wave radiation - earth radiation


 10. If the sun suddenly began emitting more energy, the earth's radiative equilibrium temperature would:

     a.  increase

     b.  decrease

     c.  remain the same

     d.  begin to oscillate