• SC.4.P.11.1 Recognize that heat flows from a hot object to a cold object and that heat flow may cause materials to change temperature.
SC.4.P.11.2 Identify common materials that conduct heat well or poorly.
HEAT by Nicholas Williams

What is heat

  • Heat is thermal energy.

  • Thermal energy is the movement of particles or what we feel as hot or cold.

  • The higher the thermal energy, the hotter it is.

How does heat travel

external image rad_waves_new.jpg

  • Heat travels through conductors,but notinsulatorsyou will learn about in a blabber at the end of the wiki.You will also learn about friction.

  • Heat also travels by radiation.

  • Radiation is the movement of energy either by subatomic particles or electromagnetic waves.

  • For heat to travel from a hot to cold surface the hot part has to be greater temperature than the cold material. Then the particles will spread all through out the body makeing the cold material heat up.Take a lightbulb for example, the inner core heats up, which heats up the glass, which heats up your hand and burns it. Another example is a coffea cup. I love to drink coffee, so i have experienced that a couple of times. The coffee is hot, so it heats up the cup, which heats up your hand and burns it.

Changes of state

  • Heat has a lot to do with changes of stateexternal image images?q=tbn:ANd9GcTq0i6CBq0qhKT_F34jONPAM_2jqPKFFQJbyjvJ6ufawymI2BGGiA

  • changes of state are when a state of matter changes to a different state.
  • For example, if a ice cube(solid)heats up, it turns into water(liquid).
  • State changes depend on temperature, because without temperature, the state of matter would always stay the same.
  • Some state changes are condensation, evaporation, and melting.
Conduction, Insulator, and friction