Physics 5054/22 — May/June 2022

Cambridge O-Level · Theory · worked solutions for every part, with the mark scheme

questions

marks

105

minutes

Topics Forces · Electromagnetic Spectrum · Mass, Weight and Density · Physical Quantities and Measurement · Energy, Work and Power · Thermal Properties of Matter · +13 more

Q18MMass, Weight and DensityPhysical Quantities and MeasurementForcesFree sample

Fig. 1.1 shows a waterskier pulled horizontally across the water surface.

Fig. 1.1

The mass of the waterskier is $60\text{ kg}$ . The gravitational field strength $g$ is $10\text{ N / kg}$ .

(a)

Calculate the weight of the waterskier.

weight = ______

(b)

Mass and weight have different units.

State two other differences between mass and weight.

(c)

A boat pulls the waterskier to the right with a horizontal force of $50\text{ N}$ . The waterskier travels at a constant speed.

(i)

Explain, in terms of the horizontal forces acting, why the speed is constant.

(ii)

The horizontal force acting to the right increases from $50\text{ N}$ to $70\text{ N}$ . The sizes of any other forces are unchanged.

Calculate the acceleration of the waterskier.

acceleration = ______

The rest of this paper

8 more questions

Q2Energy, Work and Power · Thermal Properties of Matter8M
Q3Pressure · Kinetic Particle Model of Matter8M
Q4Reflection and Refraction of Light · Lenses and Dispersion · Electromagnetic Spectrum7M
Q5Electric Circuits · Practical Electricity · Current, Voltage and Resistance8M
Q6Simple Magnetism and Magnetic Fields · Magnetic Effect of a Current and the d.c. Motor6M
Q7Kinematics · Forces15M
Q8General Properties of Waves · Electromagnetic Spectrum15M
Q9The Nuclear Atom · Radioactivity15M

Loading the full paper…