Transcription of Student Guide - The NEED Project
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Student Guide - The NEED Project
Energy From the SunStudent GuideINTERMEDIATE2017-20182 Energy From the SunWhat is Solar Energy?Every day, the sun radiates (sends out) an enormous amount of energy. It radiates more energy each day than the world uses in one year. Solar energy is a renewable energy source. The sun s energy comes from within the sun itself. Like most stars, the sun is made up mostly of hydrogen and helium atoms in a plasma state. The sun generates energy from a process called nuclear nuclear fusion, the high pressure and temperature in the sun s core cause nuclei to separate from their electrons. Hydrogen nuclei fuse to form one helium atom. During the fusion process, radiant energy is released. It can take 150,000 years for energy in the sun s core to make its way to the solar surface, and then just a little over eight minutes to travel the 93 million miles to Earth.
Student Guide INTERMEDIATE 2017-2018. 2 Energy From the Sun What is Solar Energy? ... PV cells or solar cells for short. Using PV cells to harness the sun’s energy is a rapidly expanding science. The first practical PV cell was developed by Bell Telephone researchers. At …
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