Physics 9702/23 — May/June 2012

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

questions

marks

minutes

Topics Physical Quantities and Units · Kinematics · Dynamics · Forces, Density and Pressure · Electricity · Work, Energy and Power · +4 more

Q1KinematicsPhysical Quantities and UnitsDynamicsForces, Density and PressureFree sample

Answer all the questions in the spaces provided.

(a)

Explain the differences between the quantities distance and displacement.

(b)

State Newton’s first law.

(c)

Two tugs pull a tanker at constant velocity in the direction XY, as represented in Fig. 1.1.

Fig. 1.1

Tug 1 pulls the tanker with a force $T_1$ at $25.0^{\circ}$ to XY. Tug 2 pulls the tanker with a force of $T_2$ at $15.0^{\circ}$ to XY. The resultant force $R$ due to the two tugs is $25.0 \times 10^3\ \text{N}$ in the direction XY.

(i)

By reference to the forces acting on the tanker, explain how the tanker may be described as being in equilibrium.

(ii)

Complete Fig. 1.2 to draw a vector triangle for the forces $R$ , $T_1$ and $T_2$ .

Fig. 1.2

Use your vector triangle in Fig. 1.2 to determine the magnitude of $T_1$ and of $T_2$ .

$T_1$ = ______ $\text{N}$
$T_2$ = ______ $\text{N}$

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6 more questions

Q2Physical Quantities and Units · Dynamics · Kinematics11M
Q3Forces, Density and Pressure6M
Q4Electric Fields · Electricity · Work, Energy and Power10M
Q5D.C. Circuits · Electricity · Work, Energy and Power10M
Q6Superposition · Physical Quantities and Units10M
Q7Particle Physics4M

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