Energy in food (Edexcel GCSE Biology Combined Science): Flashcards

Process of burning samples to measure energy released

Calorimeter

Joules or calories

Beaker of water above burning sample

Temperature rise in water shows energy in sample

$m_{water} \times \Delta T \times 4.2$

$\frac{\text{Energy in food}}{\text{Mass of food}}$

$1 \text{ cm}^3 = 1 \text{ g}$

Results will be inaccurate

Burns easily, best if dried