A swimming pool is filled with $450\ \text{m}^3$ of water at $12\ ^\circ\text{C}$. The density of water is $1000\ \text{kg / m}^3$ and its specific heat capacity is $4.2\ \text{J / (g }^\circ\text{C)}$. (a) Calculate the mass of water in the swimming pool. mass = \_\_\_\_\_\_ (i) Calculate the thermal energy (heat) needed to raise the temperature of the water to $27\ ^\circ\text{C}$. thermal energy = \_\_\_\_\_\_ (ii) Suggest one reason why the thermal energy supplied to the…

Physics 5054/21 — October/November 2013

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

questions

marks

105

minutes

Topics Mass, Weight and Density · Kinematics · Thermal Properties of Matter · Turning Effect of Forces · Kinetic Particle Model of Matter · Pressure · +17 more

Q1Mass, Weight and DensityThermal Properties of MatterFree sample

A swimming pool is filled with $450\ \text{m}^3$ of water at $12\ ^\circ\text{C}$ .

The density of water is $1000\ \text{kg / m}^3$ and its specific heat capacity is $4.2\ \text{J / (g }^\circ\text{C)}$ .

(a)

Calculate the mass of water in the swimming pool.

mass = ______

(b)

(i)

Calculate the thermal energy (heat) needed to raise the temperature of the water to $27\ ^\circ\text{C}$ .

thermal energy = ______

(ii)

Suggest one reason why the thermal energy supplied to the water by the heating system, when raising the temperature of the water to $27\ ^\circ\text{C}$ , differs from the value calculated in (i).

______

The rest of this paper

10 more questions

Q2Turning Effect of Forces5M
Q3Kinetic Particle Model of Matter · Pressure9M
Q4Transfer of Thermal Energy4M
Q5[Legacy] Temperature and Thermometry4M
Q6Simple Magnetism and Magnetic Fields6M
Q7Practical Electricity6M
Q8Radioactivity5M
Q9Physical Quantities and Measurement · Mass, Weight and Density · Forces · Kinematics · Energy, Work and Power15M
Q10Sound · Electromagnetic Spectrum · Kinematics · General Properties of Waves · Lenses and Dispersion · Reflection and Refraction of Light15M
Q11Electric Circuits · Current, Voltage and Resistance · Uses of an Oscilloscope · [Legacy] Introductory Electronics15M

Loading the full paper…