GCSE Combined Science · key term

Volt

Definition

The unit of potential difference. One volt means one joule of energy is transferred per coulomb of charge: $1\text{ V} = 1\text{ J/C}$ .

Used by Edexcel

Paper 5, Paper 6

1
Use charge in coulombs and potential difference in volts in E = Q × V; the energy transferred is then in joules.
2
V represents both the quantity potential difference in an equation and the unit volt after a numerical value.

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GCSE Combined Science · key term

The unit of potential difference. One volt means one joule of energy is transferred per coulomb of charge: $1\text{ V} = 1\text{ J/C}$ .

Used by Edexcel

Paper 5, Paper 6

1
Use charge in coulombs and potential difference in volts in E = Q × V; the energy transferred is then in joules.
2
V represents both the quantity potential difference in an equation and the unit volt after a numerical value.

Create a free account to read GCSE Combined Science revision notes for your exam board and track your progress.