These errata apply only to the books that were printed in 2007 and 2008 (see flyleaf). They have all been corrected in the current revised edition ISBN 978–1–876659–28–8

Errata for IB Physics Textbook (IBID Press, 2007 and 2008)

Chapter 1 Physics and physical measurement P2 lhc, under Example 2, line 10, 100.5 should read 100.5 P3 rhc, line 5, should read 16 × 5280 × 12 × 12 × 5280 and consequently the answer beneath should be 7.7 × 1011 P11 rhc, within the Solution, 3.71% should read 37.1% (twice), answer is correct rhc, bottom line, should read 30 ± 0.2 m P13 rhc, para under 1.2.12 heading 4th line should read ‘m’ rather than ‘cm’ last line of para, should read ‘this section’ instead of ‘Section 1.6.1’ P28 the formula the area of a hollow cylinder should read = 2πrh

Chapter 2 Mechanics P42 lhc, Solution to Example, should have units of m s–1 P53 rhc, last line of Solution, ignores gravity so total force = 920 N P64 Example 3 refers to diagram on p65 lhc P65 lhc, Solution 2, answer should be 0.05 W

Chapter 3 Thermal Physics

P84 rhc, in Example 1, the object is 0.650 kg of aluminium temperatures given should be 80 ºC and 20 ºC P89 rhc, para 3, line 2, should read 0 ºC rather than 25 ºC P91 rhc, Exercise 5, D should read ‘nineteenth minute to the …’ P93 lhc, Example 2, the specific heat capacity of ice is 2.1 × 103 J kg–1 ºC–1

Chapter 4 Oscillations and waves

P 103 lhc, Equation 4.5 should read a = – const × x P104 rhc, (c) under the mathematical answer, line 3 should be rhc, answer for (c) T represents the period of a pendulum and t the time t = ½T P106 rhc, the bottom left cell of Figure 411 should be

Chapter 5 Electric currents

P135 lhc, 3 lines from bottom, typo, should read 105 rather than 105 P137 lhc, 4 lines from bottom the symbol for Power should be (P) not (F) P140 lhc, line 2 should read I = I1 = I2 = I3 = … P143 bottom right, there are errors in the diagram, it should be

P144 lhc, line 3, should read ‘Therefore I (Rg + Rs) P149 Exercise 15, the power supply is 12V Exercise 16, the power supply is 15V and the resistance is 3Ω

These errata apply only to the books that were printed in 2007 and 2008 (see flyleaf). They have all been corrected in the current revised edition ISBN 978–1–876659–28–8

Chapter 6 Fields and forces P158 lhc, below first equation should be q2 rather than q1 P159 rhc, at the bottom, both answers should read 9 x 109 N P166 rhc, point 2, should read increasing number of coils per unit length P170 rhs, the diagram should be

P171 lhc, Exercise 12, line 3, typo, should read 3.0 x 104

Chapter 7 Atomic and nuclear physics P181 rhc, line 2, within Example, the unit should be Bq as it is below P183 lhc, second equation should be third equation should be

p184 rhc, line 3 ‘radium’ should read ‘radon’ p186 lhc, 3 lines up from bottom, equation should have α instead of e+ p188 lhc, 3rd equation, should produce 2p+

Chapter 8 Energy, power and climate change P194 rhc, under Exercise 6, option B, the Efficiency should be W / EK P199 there is an error in the working of the second part of the Solution to Example 2 and

the energy density should be 33.12 kJ g–1 P208 lhc Ex 6 line 3 the unit should be 28 kJ g–1 P210 rhc, error with neutron symbol, the equations should read

P213 lhc, Figure 837, in the lower box, it should read ‘Low temperature reservoir at TL’ P214 lhc, fourth equation Pu should have proton number 94 as shown below

P217 rhc, Exercise 5, option D should read

P221 lhc, 4 lines up should read ‘…the water uphill is more than the …’ P222 rhc, line 4 under the Solution, should read = 0.6 × 735 × 106 J s–1 = 441 MW p227 lhc, Ex 7 (b) should read ‘…4.0 × 108 J…’ Ex 8 line 2 should read’… 0.1 s–1

’ P239 lhc, under Example 2, line 2 should read 85º N and also under the Solution line 3, the answer given is correct.

These errata apply only to the books that were printed in 2007 and 2008 (see flyleaf). They have all been corrected in the current revised edition ISBN 978–1–876659–28–8

Chapter 9 Motion in fields P253 rhc, the final answer should be 58º (i.e. 90º – 32º). P259 rhc, line 5 the formula should read

P269 rhc, bottom equation should be P270 lhc, third equation down should be

Chapter 10 Thermal physics P276 lhc, Exercise 5, option C should be 1 P283 rhc, Freon (several places) not now used in most countries, replace with HFC (tetrafluoroethane)

Chapter 11 Wave phenomena P294 rhc, 6 lines up, the number should be 22.5 cm rather than 15 cm P298 bottom right and p299 top left denominator in equation should be fΔt P303 rhc, there is an error in the calculation and the answer should be 5.7 x 10–6 m

Chapter 12 Electromagnetic induction P319 rhc, Exercise 2, option D, should read 400V P324 rhc, line 3 the formula should be I = I0 sin (ωT) P325 lhc, 4 lines from the bottom, formulas should be: P326 lhc, last line of Solution, omit ‘A2’

Chapter 13 Quantum physics and nuclear physics P338 lhc, answer to Solution should be 0.14 nm P339 lhc, answer to Solution should be 1900 nm P341 rhc, half way down, the formula for ‘d’ and calculation is inverted and the correct answer should be 5.6 × 10–14 m

Chapter 14 Digital technology P346 lhc, para 3, beneath heading, para 3, line 3 the value should read 26 instead of 16 P349 rhc, para 3, beneath 14.2.1 heading , line 6 should read 10–3 F P 352 lhc, Example 1 Solution, answer should be 4.1 megapixels rhc, Example 2 Solution, bottom line, answer should be 0.060 mV

Chapter 15 Sight and wave phenomena P356 lhc, para 2 should begin: ‘In colour subtraction…’

Chapter 16 Astrophysics P368 rhc, Solution, Part (b), error in calculation but answer is correct

Chapter 17 Communications P395 lhc, Solution, there is a typo in the working but the answer is correct rhc, 4 lines from the bottom should read (fc – fs) + (fc + fs) = 2fc

Chapter 18 Electromagnetic waves P428 rhc, ‘Focal length’ heading should have the symbol ‘f’ P434 lhc, Solution, error in working, correct answer should be 5.7 cm

These errata apply only to the books that were printed in 2007 and 2008 (see flyleaf). They have all been corrected in the current revised edition ISBN 978–1–876659–28–8

Chapter 19 Relativity Nil

Chapter 20 Medical physics P483 lhc, 4 lines up should read So ∆L = k ln I – k ln I0 P484 in the second column of the table, the values should be: Library 10–9, Office 10–7, Conversation 10–6 and Machine shop 10–2. P499 lhc, Solution at top, (c) has an error in the working but the answer is correct P510 lhc, Solution at bottom, (b) has an error in the working but the answer is correct

Chapter 21 Particle physics P527 lhc, at the top, the working has been reset but the answers were correct

rhc, the labels on Figure 2114 should be

P534 rhc, the Solution to example 2 should be v = 4.19 × 107 m s–1

p535 lhc, top, the correct answer should now be m = 2.10 m bottom left and top right, answers are correct but appear in the denominator p549 bottom right, answer is correct but appears in the denominator