IGCSE Physics: Specific Heat Capacity Practical | Edexcel Modular | Unit 4 | L9

This two-lesson resource covers spec point 4.14P — investigating the specific heat capacity of aluminium using an immersion heater and joulemeter, calculating c from experimental results, and evaluating the method.
PowerPoint includes:

Retrieval starter requiring students to state and rearrange ΔQ = mcΔT
Direct Instruction (I Do) — apparatus explained including role of oil, insulation and joulemeter
Guided Practice (We Do) — assembly checklist, zeroing procedure and prediction of error direction
Lesson 1 Independent Practice — students carry out the experiment, recording mass, temperatures and energy
Lesson 2 Independent Practice — students calculate c, compare to accepted value of 900 J/kg°C and evaluate
Temperature lag concept explained with graph
Sources of error analysis and terminology matching activity
Review and Reflect exit ticket

Activity Sheet includes — Option 1 (Structured Practical Sheet):

Aim and equipment section for students to complete
Method section — 5 numbered steps for students to write in their own words
Results table with 3 trials, anomaly identification and mean calculation
Calculation scaffold: c = ΔQ ÷ (m × ΔT) = ___ ÷ (___ × ___) with comparison to accepted value
Analysis questions covering why c is too high, role of oil, temperature lag and sources of error
Conclusion section with structured writing guidance
Full mark scheme for teacher use

Activity Sheet includes — Option 2 (Extended Analysis Sheet):

Lesson 1 data collection table
Calculation scaffold box: c = ΔQ ÷ (m × ΔT) = ___ ÷ (___ × ___) with comparison to accepted value
Lesson 1 analysis questions covering calculation, oil in holes, insulation and systematic error
Lesson 2 data analysis questions including temperature lag and larger block misconception
Stretch question on effect of block size on calculated c
Full mark scheme for teacher use

Both activity sheets are included in this resource. Option 1 is ideal for lower ability or less experienced students. Option 2 suits students who are confident with the method and ready to focus on deeper analysis.

This lesson is part of the complete Unit 4 resource pack, available separately at a discounted bundle price.