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Joule

Key Stage 3

Meaning

A Joule is the scientific unit for measuring energy.

About Joules

Joules are the scientific unit for measuring energy.
A number of Joules is written with a capital J.

Unit Comparisons

Unit In Joules
1 Calorie 4.2J
1 kilocalorie 4200J
1 kilowatt-hour 36,000,000J

Converting to Joules

Unit To convert Joules
1 Megajoule (1MJ) Convert to Joules x1000,000. 1000,000J
1 kilojoule (1kJ) Convert to Joules x1000. 1000J
1 Joule (1J) Convert to Joules x1. 1J
1 millijoule 1(mJ) Convert to metres /1000. 0.001J
1 microjoule 1(µJ) Convert to Joules /1000,000. 0.000001J

Key Stage 4

Meaning

Joules (J) are the SI Unit for energy.

About Joules

Joules are shortened to an upper case J.

Converting to Joules

Unit To convert Joules
1 megajoule (1MJ) Convert to joules x106 1x106J
1 kilojoule (1kJ) Convert to joules x103 1x103J
1 Joule (1J) Convert to joules x1 1J
1 millijoule 1(mJ) Convert to joules x10-3 1x10-3J
1 microjoule 1(µJ) Convert to joules x10-6 1x10-6J
1 nanojoule 1(nJ) Convert to joules x10-9 1x10-9J

References

AQA

Joules (J), page 266, GCSE Combined Science Trilogy 1, Hodder, AQA
Joules (J), pages 214, GCSE Combined Science Trilogy 2, Hodder, AQA
Joules (J), pages 3, 124, GCSE Physics, Hodder, AQA
Joules, pages 8, 10-13, 16, 20-21, 70-72, GCSE Physics; Third Edition, Oxford University Press, AQA

Edexcel

Joules (J), page 34, GCSE Physics, Pearson Edexcel
Joules, page 316, GCSE Combined Science, Pearson Edexcel

OCR

Joules (J), pages 26, 74, Gateway GCSE Physics, Oxford, OCR