Assignment #Assignment #Heat TransferHeat Transfer

Mrs. McCarthyMrs. McCarthyEarth ScienceEarth Science

Saturday, May 6, 2023Saturday, May 6, 2023

I.I. ConductionConductionA. Electrical- the movement of A. Electrical- the movement of charged charged

particlesparticles through the flow of an through the flow of an electric currentelectric current

Ex. Electrical outletsEx. Electrical outlets

B. Heat- B. Heat- the the movement of movement of thermal energy thermal energy through matterthrough matter

Ex. Ex. SandSand on a hot on a hot summer day, summer day, spoon left in hot spoon left in hot potpot

II. II. ConvectionConvection- - the the movement of movement of currents in fluidscurrents in fluids

Cold, dense Cold, dense fluid fluid sinkssinks and and warm, less warm, less dense fluid dense fluid risesrises

II. ConvectionII. ConvectionA. Oceanic- the A. Oceanic- the sinking sinking of cold waterof cold water and the and the rising of warmer waterrising of warmer water along with the wind along with the wind create currents. create currents.

This also allows This also allows nutrients from nutrients from the bottom to the bottom to come to the top come to the top and vice versa.and vice versa.

B. Mantle- the B. Mantle- the warming of the warming of the liquid mantle liquid mantle allows cooler, allows cooler, more more dense magma to dense magma to sinksink, while the , while the less less dense, warmer dense, warmer magma risesmagma rises. This . This drives the drives the movement movement of the of the plates.plates.

C. Atmospheric-the C. Atmospheric-the sinkingsinking of of cold aircold air and and rising rising of of warm warm airair are responsible are responsible for the for the redistribution of redistribution of heat from the warm heat from the warm equatorial regions equatorial regions to higher latitudes to higher latitudes and from the and from the surface upward. surface upward.

III. III. RadiationRadiation- - Energy in the Energy in the form of wavesform of waves

A. Types of RadiationA. Types of Radiation Electromagnetic Electromagnetic

radiationradiation: Energy : Energy in the form of in the form of electromagnetic electromagnetic waves or waves or photonsphotons..

1. Non-ionizing1. Non-ionizinga. a. Radio wavesRadio waves b. b. Microwave radiation-Microwave radiation- familiar to those familiar to those

who use microwave ovens. who use microwave ovens. c. c. Infrared radiation (IR)-Infrared radiation (IR)- produced by produced by

heatheatd. d. Visible lightVisible lighte. e. Ultraviolet radiation (UV)-Ultraviolet radiation (UV)- responsible responsible

for sunburns and skin cancerfor sunburns and skin cancer

2. Ionizing Radiation2. Ionizing Radiationa.a. X-rays X-rays- used for - used for medical purposesmedical purposesb. b. Gamma Radiation-Gamma Radiation- Emitted by Emitted by radioactive atomsradioactive atoms

3. Particle Radiation3. Particle Radiationa. a. AlphaAlpha radiation radiationb. b. BetaBeta radiation radiationc. c. NeutronNeutron radiation radiation