Heat

A Form of Energy

Molecules and Motion

• The _____of molecules produces _____

• The _____motion, the _____heat is generated

Heat Transfer

• The _______of _____from a _____object ___a _____one

Forms of heat transfer

• _____forms of heat transfer: • __________• __________• __________

Conduction

• Conduction involves the ______of ____through ______ ______

• Heat _______conduct heat ____, insulators do ____

Convection

• Takes place in ______and ______as molecules _____in ________

• Heat _____and cold ______to the bottom

Radiation

• Heat is ________through ______

• Energy from the ____being transferred to the ________

Questions

• What are the three types of heat transfer?

• How is conduction different from radiation?

What type of heat transfer is involved?

• Heating a room with a fireplace• Egg cooking in a frying pan• Roof of a house becoming hot

What type of heat transfer?

• Warm air mass bringing a change in the weather

• Wire getting hot from an electric appliance

Temperature and Heat

• ______energy is the energy of ______

• ________is the ______of the _______kinetic energy of an object

Question

• How is kinetic energy related to heat production?

Thermometer

• A _______used to measure _________

• Thermometers commonly have _______(with dye) or mercury

• ______thermometers have replaced older ones

Celsius Scale

• _______is the ______scale for measuring _______

• Water ______at ____and _____at ______

Kelvin scale

• The _____scale is a _____temperature scale measured in Kelvin ____(K)

• Formula (______)= Kelvin

Questions

• What is the formula for converting a Celsius temperature to a Kelvin temperature?

• What is the boiling point of water on the Kelvin scale?

• What is the freezing point of water on the Kelvin scale?

Absolute zero

• The _______in which ___molecular _____ ____ (____)

Questions

• Describe absolute zero.• What is absolute zero on the

Celsius scale?

Measuring Heat

• _______in temperature

• _________of _____

• A _______in temperature

• ________of heat