Edexcel IGCSE Physics 5.13P Thermal energy equation
Practise using ΔQ = m x c x ΔT to calculate energy, mass, temperature change or specific heat capacity from thermal data.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- calculate ΔT from two temperatures before substituting into ΔQ = m x c x ΔT
- rearrange the thermal energy equation to find mass or specific heat capacity
- convert grams to kg and give sensible units
5.13P Thermal energy equation question 1
Energy is transferred from the Sun to the Earth.
Solar panels use energy from the Sun to heat water.
A mass of 1100 kg of cold water is in the solar panels at an initial temperature of 20 degrees C.
Calculate the final temperature of this water after it has been heated by the Sun for 2 hours.
[specific heat capacity of water = 4200 J/kg degrees C]
final temperature = ............ degrees C
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