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Edexcel  GCSE Physics Topic 3 - Conservation Of Energy

Below is everything the examiners think you know, if you're not sure of something click on the link to watch my YouTube video explanation. For a copy of these you can print off, get the FREE revision guide I wrote for you.

• I can recall the different types of energy and give examples Video 1Video 2

• I can describe the energy changes involved in a range of common situations

• I can recall that energy cannot be created or destroyed

• I can use describe how gravitational potential energy changes

• I can recall the units needed for GPE = mgh

• I can rearrange GPE = mgh

• I can use GPE = mgh

• I can use describe how kinetic energy changes over time

• I can rearrange KE = ½ mv²

• I can use KE = ½ mv²

• I can define the term system

• I can analyse the energy changes within a system when:- -an object is moving upwards -an object hits a stationary object -an object is accelerating -an object is slowing down -a kettle

• I can state that most process have heat as wasted energy

• I can describe what happens to wasted energy

• I can recall ways to reduce wasted energy

• I can describe how insulation can reduce energy loss

• I can describe why a system might not be 100% efficient

• I can describe whys to increase the efficiency of a system - Higher tier only

• I can rearrange Efficiency = useful energy out/total energy in

• I can use Efficiency = useful energy out / total energy in

• I can recall the units needed for Efficiency = useful power out / total power in

• I can rearrange Efficiency = useful power out / total power in

• I can use Efficiency = useful power out / total power in

• I can state the different sources that can be used to get energy

• I can determine if a resource is renewable or finite

• I can consider the impact that using these resources has on the environment

• I can discuss the advantages and disadvantages of each source of energy