==Key Stage 4==
===Meaning===
The ‘’’Joules’’’ (‘’’J’’’) are the [[SI unitUnit]] for [[Measureenergy]].===About Joules===: ‘’Joules’’’ are shortened to an upper case ‘’’J’’’.===Converting to Joules==={| class="wikitable"|-| style="height:20px; width:200px; text-align:center;" |'''Unit'''| style="height:20px; width:200px; text-align:center;" |'''To convert'''| style="height:20px; width:200px; text-align:center;" |'''Joules'''|-| style="height:20px; width:200px; text-align:center;" |1 [[megajoules]] (1MJ)| style="height:20px; width:200px; text-align:center;" |Convert to '''joules''' x10<sup>6</sup>| style="height:20px; width:200px; text-align:center;" |1x10<sup>6</sup>J|-|measuringstyle="height:20px; width:200px; text-align:center;" |1 [[kilojoules]] (1kJ)| style="height:20px; width:200px; text-align:center;" |Convert to '''joules''' x10<sup>3</sup>| style="height:20px; width:200px; text-align:center;" |1x10<sup>3</sup>J|-| style="height:20px; width:200px; text-align:center;" |1 [[energyJoule]] (1J)| style="height:20px; width:200px; text-align:center;" |Convert to '''joules''' x1| style="height:20px; width:200px; text-align:center;" |1J|-| style="height:20px; width:200px; text-align:center;" |1 [[millijoules]] 1(mJ)| style="height:20px; width:200px; text-align:center;" |Convert to '''joules''' x10<sup>-3</sup>| style="height:20px; width:200px; text-align:center;" |1x10<sup>-3</sup>J|-| style="height:20px; width:200px; text-align:center;" |1 [[microjoules]] 1(µJ)| style="height:20px; width:200px; text-align:center;" |Convert to '''joules''' x10<sup>-6</sup>| style="height:20px; width:200px; text-align:center;" |1x10<sup>-6</sup>J|-| style="height:20px; width:200px; text-align:center;" |1 [[nanojoules]].1(nJ)| style="height:20px; width:200px; text-align:center;" |Convert to '''joules''' x10<sup>-9</sup>| style="height:20px; width:200px; text-align:center;" |1x10<sup>-9</sup>J|}