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← Topic 26 overviewTOPIC 26 ASSESSMENT

Practical work

CIE-style questions assess planning, variables, apparatus, measurements, tables, graphs, gradients, uncertainty, evaluation, Paper 3 and Paper 5 skills.

Objective question 1

The independent variable is the quantity that is:

Objective question 2

The best instrument for measuring thin-wire diameter is a:

Objective question 3

A valid results-table heading is:

Objective question 4

For y = axⁿ, the gradient of lg y against lg x is:

Objective question 5

A useful improvement must be:

Structured question 1

A length is (0.480 ± 0.002) m. Calculate its percentage uncertainty.

Structured question 2

For Q = x²y, x has 3% uncertainty and y has 4% uncertainty. Calculate the percentage uncertainty in Q.

Structured question 3

A best-fit line changes from y = 1.2 to 8.8 while x changes from 0.50 to 4.50. Calculate its gradient.