Heat

Which statement is true?

• Heat flows spontaneosly from an object at

  lower temperature to one at higher

  temperature.

• Heat flows spontaneosly from an object at

  higher temperature to one at lower

  temperature.

• Heat never flows from one object to another

Heat is a form of energy

• True

• False

Choose those units that can be used to represent Heat

• Calories

• Joules

• °C

• BTU

Is

defined as the amount if heat necessary to

raise the temperature of 1 gram of water by

1 celsius degree.

is defined as energy transferred from one

object to another because of a

difference in temperature.

Energy is transfered being carried out via molecular collisions.

• Conduction

• Convection

• Radiation

Air is a good conductor of heat

• True

• False

is the process whereby heat flows by the

mass movement of molecules from one place to

another

consists essentially of electromagnetic waves.

• Conduction

• Convection

• Radiation

Which is the best absorber (and emiter) of radiation

• Shiny materials

• Light fabric

• Black surfaces

• White surfaces