What are the energy transfers in a solar

What are the energy transfers in a solar panel? Light Energy a c i r ect El gy r e l En Hea t en ergy

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Get. IT – Energy cannot be created or destroyed; energy is conserved. The unit for energy is joules. Energy can be: • stored • transferred • dissipated We can calculate how efficient an energy transfer is using this equation: Efficiency = useful output energy total input energy

Match IT System Heat Kinetic energy Unit for power Thermal energy Unwanted energy transfer; energy is ‘wasted’ Specific heat capacity Object or group of objects Watt Rate at which energy is transferred Dissipation Found in a moving object Renewable Non-renewable Power Fossil fuels – supplies will run out Energy needed to raise the temperature of 1 Kg of a substance by 1 o. C Supplies will be replenished

Match IT - Answers System Object or group of objects Kinetic energy Found in a moving object Thermal energy Heat Specific heat capacity Energy needed to raise the temperature of 1 Kg of a substance by 1 o. C Watt Unit for power Dissipation Unwanted energy transfer; energy is ‘wasted’ Renewable Supplies will be replenished Non-renewable Fossil fuels – supplies will run out Power Rate at which energy is transferred

Label IT Label the diagram to show the energy transfers occurring in the light bulb.

Label IT Label the diagram to show the energy transfers occurring in the light bulb. Light energy Th en erm er al gy Electrical energy

Label IT - Answers Chemical in fuel Thermal in heated objects Sound in vibrating objects The remaining three energy types could be on any of the three remaining arrows Kinetic in moving objects

You are designing a poster for a primary school. Your poster must include the following… 1. Instructions on how to calculate work done to an object 2. Instructions on how to calculate the power used to move an object 3. Instructions on • how to calculate how • efficient a light bulb is. 4. State the 3 ways in which heat energy can be transferred. Explain in detail how radiation can behave on a silver surface or a black surface.