IB SL Physics Unit 8: Energy Production

specific energy

work per unit mass

energy density

work per unit of area/volume

high

ideal power sources have [low/high] specific energy and energy density (like nuclear power)

incoming outgoing

on a Sankey diagram, the left is ____________ energy and the right is ____________ energy

heat light sound

the three major energy robbers

turbine

wind, hydro, and fossil fuels use a

electron

this subatomic particle is released in solar power cells, creating electrical energy

fission

method of nuclear power used today

fission fusion

two types of nuclear power

albedo

total scattered power over total incident power

blackbody

perfect emitter of electromagnetic radiation

temperature

everything with a _____________ emits radiation

greenhouse effect

the process by which Earth’s atmosphere is 18 degrees C warmer than expected due to specific glasses absorbing infrared radation

H20 C02 CH4 N20 CFC’s and 03

five major greenhouse gasses

N2

Earth’s atmosphere is 72%

02

Earth’s atmosphere is 21%