Physics 9702/23 — October/November 2018

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

questions

marks

minutes

Topics Physical Quantities and Units · Dynamics · Forces, Density and Pressure · Deformation of Solids · Work, Energy and Power · Kinematics · +6 more

Q1Physical Quantities and UnitsForces, Density and PressureDeformation of SolidsFree sample

(a)

Mass, length and time are all SI base quantities.

State two other SI base quantities.

______
______

(b)

Fig. 1.1

A child’s swing is made by connecting a car tyre to the wire using a rope and a hook. The system is in equilibrium with the wire hanging at an angle of $17^{\circ}$ to the horizontal. The tension in the wire is $150\ \text{N}$ . Assume that the rope and hook have negligible weight.

(i)

Determine the weight of the tyre.

weight = ______ $\text{N}$

(ii)

The wire has a cross-sectional area of $7.5\ \text{mm}^2$ and is made of metal of Young modulus $2.1 \times 10^{11}\ \text{Pa}$ . The wire obeys Hooke’s law.

Calculate, for the wire,

the stress,

stress = ______ $\text{Pa}$

the strain.

strain = ______

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6 more questions

Q2Work, Energy and Power · Dynamics · Kinematics · Physical Quantities and Units12M
Q3Dynamics · Forces, Density and Pressure11M
Q4Waves · Superposition12M
Q5Electric Fields · Dynamics · Physical Quantities and Units · Particle Physics7M
Q6Electricity4M
Q7D.C. Circuits6M

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