Physics 9702/23 — October/November 2023

Cambridge AS Level · AS Level Structured Questions · worked solutions for every part, with the mark scheme

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Topics Dynamics · Waves · Physical Quantities and Units · Kinematics · Forces, Density and Pressure · Work, Energy and Power · +5 more

Q1Physical Quantities and UnitsFree sample

(a)

Table 1.1 lists some physical quantities. Complete the table by placing a tick (✓) next to the scalar quantities.

Table 1.1

(b)

A uniform cylinder has diameter $D$ , length $L$ and mass $M$ . The density $\rho$ of the cylinder is given by

\rho = \frac{4M}{\pi D^2 L}

Table 1.2 shows the data obtained from an experiment to determine the density of the cylinder.

Table 1.2

(i)

Calculate the percentage uncertainties in $D$ and $L$ . Write your answers in Table 1.2.

(ii)

Calculate the density of the cylinder. Give your answer to three significant figures.

density = ______ $\text{kg m}^{-3}$

(iii)

Calculate the percentage uncertainty in the density.

percentage uncertainty = ______ $\%$

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