Marking Group X's thermometer report

Alternative to Practical skills, from your own Lab 1 data

Physics · 3A · 29 September 2026

Does Group X's thermometer work?

The brief: accuracy of \pm 1\,^\circ\mathrm{C} between 0\,^\circ\mathrm{C} and 45\,^\circ\mathrm{C}.

  • A — yes, it meets the brief
  • B — no, it doesn't
  • C — can't tell without checking

We won't answer this now. We come back to it at the end.

1

Marking criteria

10 minutes · read Part 1 of your worksheet together

2

Audit the table

15 minutes · in pairs · Part 2 of your worksheet

3

Audit the graph, then read the correct one

20 minutes · Parts 3–4 of your worksheet

4

The test bath

25 minutes · Part 5 of your worksheet

Reference thermometer reading
T_{\text{ref}} = 30.5\,^\circ\mathrm{C}

Now complete (c)–(f): the difference, the verdict, the quick two-point check.

5

Suggested improvements

15 minutes · Part 6 of your worksheet

So — does it work?

One more: Lab 1's mystery reading was N=524. What does Group X's equation give now?