The three ways heat moves
Conduction
Heat moving through electromagnetic waves A black sweater absorbing (like light).
True or False: When you hold an ice cube, the "coldness" moves into your hand.
False
An is a material that slows down the transfer of heat.
Insulato
Critical Thinking: You want to keep a popsicle from melting in your backpack. Based on the "Insulators" section of your guide, should you wrap it in aluminum foil or a thick wool sock?
A thick wool Sock
Convection
Heat moving through fluids (liquids and gases).
In which direction does thermal energy always travel?
Warn to cool
The Blanket Myth
Why won't a blanket make a plastic doll feel warm?
Radiation
Heat moving through solids by direct contact.
Scenario: You place a hot boiled egg into a bowl of cold water. Describe the energy
Energy moves from the Egg to the Water.
Blankets don't generate heat
They only trap heat from a worm source.
Why do metals feel hotter or colder than wood?
Metals are excellent Conductors. They transfer heat energy much more easily and quickly than wood does.
The Equilibrium Test
You leave a metal plate and a plastic plate in a freezer overnight.
Why is the upstairs of a house usually warmer than the basement?
Because of convection, Warm air is less dense then cool air, which Causes the warm are to rise and the cool air to sink.
Which one is at a lower temperature?
they're the same temperature Why does the metal feel colder? It's a better conductor and moves heat Away hand faster than plastic does.