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Earth's Surface–Atmosphere System It is useful to consider Earth’s energy balance in terms of how much incoming energy from the Sun is used and how much is returned to space If incoming and outgoin...
Greenhouse Gases When radiation from the Sun hits the Earth, it is radiated back from the Earth's surface as long-wave radiation A greenhouse gas is a gas that absorbs this re-radiated radiation, t...
The Solar Constant Since life on Earth is entirely dependant on the Sun’s energy, it is useful to quantify how much of its energy reaches the top of the atmosphere This is known as the solar consta...
Black-Body Radiation Black body radiation is the name given to the thermal radiation emitted by all bodies (objects) All objects, no matter what temperature, emit black body radiation in the form o...
Conduction, Convection & Thermal Radiation Thermal energy transfers from hotter areas to cooler areas by the processes of: Conduction Convection Radiation Objects will always lose heat until th...
Safety Issues in Nuclear Power Safety Measures for Workers Several measures are in place to reduce the worker’s exposure to radiation The fuel rods are handled remotely ie. by machines The nuclear ...
Energy Generation You need to know about the main ways of generating electricity: The equipment involved The advantages and disadvantages Calculate power obtained for different setups These revisio...
Energy Resources Energy resources are large stores of energy that can be transferred from one form into electrical energy that can be used by society Generating energy reliably requires the use of ...
Primary Energy Sources Primary energy sources are found in nature and have some stored energy capacity To be a primary energy source, there must be: No processing or refining Stored energy must occ...
