Tuesday, November 10, 2015

Tuesday November 10, 2015

Today the students completed page 193 and 194 out of their textbook and turned it in.
They also took notes themselves over pages 198-205. Below you will find my notes that I took along side theirs.
We will be having a 5 question over those pages tomorrow.

Thermal Energy

* Lively Particles
     * Kinetic Energy- energy of motion
     * Thermal Energy- the total amount of kinetic energy of particles in a substance.
     * Temperature- is the measure of the average kinetic energy of the particles in a substance

*Move it Around
     *Heat- transfer of energy
     * Conduction- transfer of energy between particles that are in contact. Ex: skillet on a stove
     * Radiation- transfer of energy in waves without matter to carry it
     * Convection- transfer of energy by currents in a liquid or gas

*Going to the source
     * Solar Radiation- most important energy source on Earth
     * Combustion- occurs when a fuel rapidly combines with oxygen
     * Geothermal Energy- thermal energy naturally produced under the Earth's surface

*Uses of Energy
     * Energy from the sun- water runs through pipes in a solar panel where it is heated by solar radiation. The water is then stored until it is needed.
     *Geothermal Energy- 1st step- hot ground water is pumped to the surface where it is changed to steam. 2nd step- steam turns a turbine (fan like device) 3rd step- turbine turns a generator (machine that uses magnets to change mechanical energy into electricity

*Thermal Energy from Combustion
     *fossil fuels are burned and when they combust they generate power