Physics 9702/21 — October/November 2019

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

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Topics Waves · Dynamics · Physical Quantities and Units · Electric Fields · Kinematics · Forces, Density and Pressure · +6 more

Q1Physical Quantities and UnitsWavesFree sample

Answer all the questions in the spaces provided.

(a)

Make estimates of:

(i)

the mass, in g, of a new pencil

mass = ______ $\text{g}$

(ii)

the wavelength of ultraviolet radiation.

wavelength = ______ $\text{m}$

(b)

The period $T$ of the oscillations of a mass $m$ suspended from a spring is given by

T = 2\pi \sqrt{\frac{m}{k}}

where $k$ is the spring constant of the spring.

The manufacturer of a spring states that it has a spring constant of $25\ \text{N m}^{-1} \pm 8\%$ . A mass of $200 \times 10^{-3}\ \text{kg} \pm 4 \times 10^{-3}\ \text{kg}$ is suspended from the end of the spring and then made to oscillate.

(i)

Calculate the period $T$ of the oscillations.

$T$ = ______ $\text{s}$

(ii)

Determine the value of $T$ , with its absolute uncertainty, to an appropriate number of significant figures.

$T$ = ______ $\pm$ ______ $\text{s}$

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6 more questions

Q2Electric Fields · Dynamics · Kinematics11M
Q3Forces, Density and Pressure · Dynamics · Waves11M
Q4Deformation of Solids · Work, Energy and Power9M
Q5Superposition · Waves8M
Q6Electricity · D.C. Circuits11M
Q7Particle Physics4M

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