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Edexcel A-Level Physics AS Arithmetic Means

Edexcel A-Level Physics AS Arithmetic Means
Pearson Edexcel International Advanced Subsidiary/Advanced Level in Physics, Issue 3, July 2021Physics XPH11/YPH11

Review arithmetic means in Edexcel A-Level Physics through repeated readings, mean periods, measured dimensions and mark-scheme rounding rules.

How this is tested

  • calculate a mean from all valid repeated readings before converting totals such as 10T or 5T
  • round the final mean to the required decimal places, significant figures and physical unit

Question 1(c)(i)

[Maximum number: 1]

The electrolytic capacitor shown can be used to store energy.

Figure for Question 1(c)(i) — Edexcel A-Level Physics AS

A student connected the electrolytic capacitor into the circuit below.

Figure for Question 1(c)(i) — Edexcel A-Level Physics AS

The student repeated the procedure in (b) several times. She recorded the following measurements.

Table for Question 1(c)(i) — Edexcel A-Level Physics AS

Calculate the mean value of h.
(1)

Mean value of h=