This document discusses heat, energy, temperature, and the three methods of heat transfer: conduction, convection, and radiation. It defines key terms like heat, thermal energy, temperature, and explains that heat transfer occurs due to temperature differences between objects. The kinetic molecular theory is also summarized, stating that matter is made up of particles in random motion, possessing kinetic energy.

1. HEAT
ENERGY

2. TEMPERATURE
–The degree of hotness or coldness
–The average kinetic energy of the
particle in a system

3. HEAT TRANSFER
– Heat transfer is the process wherein thermal
energy is exchanged between objects
because of temperature differences.

4. HEAT
– Heat is the energy in transit from a hot to a cold
object.
– The natural flow of heat is from a hot to a cold
substance, or from a system with a higher
temperature to a system with lower temperature.

5. THE KINETIC MOLECULAR
THEORY
– States that matter is made up of atoms and
molecules that are always in motion.
– Because of the random motion of particles,
each substance possesses energy.
– THERMAL ENERGY OR INTERNAL ENERGY –
is the sum of the potential and kinetic
energies of all the constituent particles.

6. HEAT AND THERMAL
ENERGY SI UNITS
– The SI unit for heat energy is Joule (J).
– From a British physicist who studied the
relationship between heat and other forms of
energy.

7. METHODS OF HEAT
TRANSFER
– Conduction
– Convection
– Radiation

8. CONDUCTION
– The process wherein heat is transferred directly through
a material through specific particle collision.
– Thermal conductors are materials that conduct heat well
– Thermal insulators are poor heat conductors

9. CONVECTION
– The process in which heat is carried from place to place
by the bulk movement of fluid against its surroundings.
– Fluids are materials that can flow, and they both include
gases and liquids.

10. RADIATION
– The transfer of heat without the use of a medium.
– The transfer of energy through electromagnetic
waves.