Education Energy and energy resources (summary of AQA module)

1. Energy and energy resources summary 12 February 2011 2. Thermal radiation Hot objects emitthermal radiation(infra red rays) which are part of the electromagnetic spectrum.…

Education P1a Revision SJT

1. Thermal Radiation Thermal radiation is energy transfer by electromagnetic waves All objects emit thermal radiation The hotter an object is, the more thermal radiation…

Documents Efficiency A lamp uses 100 Joules of electrical energy each second. Efficiency is the % transferred....

Slide 1 Efficiency A lamp uses 100 Joules of electrical energy each second. Efficiency is the % transferred as useful energy Useful = the type the device was designed to…