A student uses an electric heater and a joulemeter to find the specific heat capacity of a metal block.
The table shows the student's results.
Table
| Measurement | Value |
|---|---|
| Mass of block | 500 g |
| Energy supplied | 9.0 kJ |
| Starting temperature | 21 ∘C21\ {}^\circ\text{C}21 ∘C |
| Final temperature | 41 ∘C41\ {}^\circ\text{C}41 ∘C |
What is the specific heat capacity of the metal?
0.90 J/kg ∘C0.90\ \text{J/kg}\ {}^\circ\text{C}0.90 J/kg ∘C
439 J/kg ∘C439\ \text{J/kg}\ {}^\circ\text{C}439 J/kg ∘C
900 J/kg ∘C900\ \text{J/kg}\ {}^\circ\text{C}900 J/kg ∘C
18 000 J/kg ∘C18\,000\ \text{J/kg}\ {}^\circ\text{C}18000 J/kg ∘C
44 exam-style questions on OCR GCSE Physics 1.2 Changes of state, covering 1.2.1 Conservation of mass during changes of state, 1.2.2 Physical and chemical changes, 1.2.3 Heating, temperature and changes of state, 1.2.4 Specific heat capacity and specific latent heat, 1.2.5 Internal energy and temperature change, and 1.2.6 Energy transfer during a change of state. Each one has a worked solution and a mark scheme showing where the marks go.