Presentation on theme: "Energy in Earth’s Atmosphere"— Presentation transcript:
1 Energy in Earth’s Atmosphere Section 16.1Section 16.2
2 Energy From the SunAlmost all of Earth’s energy radiates from the sun in the form of electromagnetic wavesElectromagnetic waves- can move through empty space- classified by wavelength
3 Energy in the Atmosphere The amount of energy that reaches thesurface is affected by the atmosphereSome sunlight is absorbed or reflected by the atmosphere before reaching the surface
4 Energy at Earth’s Surface When Earth’s surface is heated, it radiates most of the energy back into the atmosphereas infraredradiation.Not all the heatescapes backinto space
5 Thermal Energy and Temperature Temperature – the average amount of motion of each particle of a substance
6 Thermal Energy and Temperature Thermal energy – The total energy of motion in the particles of a substanceTeapot and cup of tea have the same temperature.The teapot has more thermal energy because it has more particles.
7 Measuring Temperature Air temperature is usually measured with a thermometer.Contains a liquid (mercury or colored alcohol)that expands up the tube when heated.