Combined Science GCSE
Sign conventions in calculations
What Sign conventions in calculations means in Combined Science GCSE, as defined for AQA.
Definition of Sign conventions in calculations
Check what you remember
Read the wording for your board, then hide it and explain Sign conventions in calculations in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
A rise in temperature gives a positive value and a fall gives a negative value, so heating gives a positive ∆θ while cooling releases energy and gives a negative ∆θ.
Topics that use Sign conventions in calculations
Related terms
- c = E ÷ (m × ∆θ)
- Change in thermal energy
- E = mc∆θ
- Energy input
- J/kg °C
- kilogram
- Mass
- Specific heat capacity
Using Sign conventions in calculations in the exam
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