Heat Intro
The flow of thermal energy from one object to another
Heat
The transfer of energy that occurs between two objects that are touching
Conduction
A material that transfers heat energy easily
Conductor
How does a thermometer work?
Liquid inside heats up, particles gain thermal energy and begin to move faster, particles move farther apart and climb up the tube.
The bits of matter moved by different types of energy
Particles
The process of heat transfer in liquids and gases
Convection
A material that does not easily conduct heat energy
Why did the tea bag float into the air?
The tea bag followed the convection current
a measure of the energy of the particles in a substance
Temperature
The transfer of heat energy over a distance
Radiation
Give an example of a conductor
-Metal
-
Which would have the fastest moving particles?
-A cup of hot chocolate
-A light bulb
-A camp fire
Camp Fire
The hotter particles are, the _____ they move.
Faster
Give an example of convection
-Lighting a candle/match
-Boiling water
-Heating a house
Give an example of an insulator
-Wool
-Coats
What would happen if you placed a very hot baking dish directly into the freezer?
The thermal energy would quickly transfer from the dish into the freezer
Heat energy flows from _____ objects to _____objects
Warmer, cooler
Give an example of conduction
-Using an iron
-Holding a warm mug
-placing a pan on a stove
How does a coat work?
Since a coat is an insulator, the heat from your body is trapped inside.
How do polar animals stay warm?
Layer of fat acts as an insulator