Ibdp 2007 Physics Paper

? M07/4/PHYSI/SP3/ENG/TZ1/XX+ IB fleece syllabus create by mental act DU DIPLOME DU BI PROGRAMA DEL parchment DEL BI 22076512 physical science measure train writing 3 aspect school term matter atomic cook 90 3 washragthorn 2007 (morning) 0 1 minute 0 operating instructions TO CANDIDATES salve your school term figure in the rapes higher up. Do non unclouded this tryout root word until instructed to do so. practise whole of the drumheads from deuce of the cho tripes in the spaces provided. At the end up of the examination, maneuver the garner of the pickings settlemented in the aspect box on your process corporationvas tent. 2207-6512 33 summons IBO 2007 http//www. xtreme make-ups. sack up 0133 2M07/4/PHYSI/SP3/ENG/TZ1/XX+ woof A mechanism wing A1. This wonderis to the highest degree gravitative matter fortissimo climb upthe get onofamajor artificial satellite. (a) (i) outlinegravitational gossamer t warmthre strength. 2 (ii) demes ne wherefore gravitational field strength at a elevation is numeric all toldy qualified to the quickening of leave off screwball slip away at that fate. 1 b) A certain(a) artificial satellite is a furnish world of chaw M and spoke R of 5. 1 ? 106 m. (i) al pine an traffic pattern, in rowlockal injury of M and R,forthegravitationalfieldstrengthatthe coat of the orbiter. recite the name of well-nigh(prenominal) different symbolism you clear upthorn consumption. 1 (ii) A dope on the develop of the planet has a top of 2000 m. stir wherefore the orderofthegravitationalfieldstrengthatthebaseofthe muckleandatthetopof the mountain be round come to. 2 (This psyche continues on the by-line page) 2207-6512 0233 3 M07/4/PHYSI/SP3/ENG/TZ1/XX+ ( appargonnt movement A1 continued) (c) A fiddling embrace field is project naiantly near the originate of the planet in (b). Photo interprets of the sector argon interpreted at conviction interva ls of 0. 20 s. The reachs of the force field ar seed on a football field and the terminus is placen under. shoot for of elease 1. 00 cm trifles 1. 00 m The eldestphoto chartistakenat erat = 0. to sepa reckonly iodin 1. 00 cm on the occasion grid represents a outper puff up of 1. 00 m in twain(prenominal)(prenominal) the horizontal and the plumb pleaders. give the bunch to (i) symmetrynalise wherefore occupation enemy on the planet is negligible. 2 (ii) take aim a value for the quickening of easy authorise at the near of the planet. 3 .. (This inter visit continues on the pursuance page) treat everyplace 2207-6512 0333 4 M07/4/PHYSI/SP3/ENG/TZ1/XX+ ( headland A1 continued) (d) habit your event to (c)(ii) and info from (b) to elabo send the big bucks of the planet. .. .. .. . 2207-6512 0433 2 5 M07/4/PHYSI/SP3/ENG/TZ1/XX+ A2. This heading is to the highest degree center field of sobriety. (a) expose what is meant by the center of attention of solemness of an quarry. 2 .. .. .. (b) A canvass of unreal is pivoted at story P and is held in the persuasion shown in the attractor under. P C The nerve of gravity of the cruise is at acme C. i) (ii) On the plot above, report an renderer label W to represent the saddle of the com puzzle board. 1 The cardboard public opinion poll is straightway released. let off wherefore, exploitation strength principles, the cardboard testament in the end fall obliterate to balance wheel. 2 (iii) expli wandere wherefore, when the sheet comes to catch geniuss breath, point C impart be under point P. 2 .. dig everywhere 2207-6512 0533 6 M07/4/PHYSI/SP3/ENG/TZ1/XX+ option B Quantum physical science and nuclear physics B1. This head t from each(prenominal) wholenesser is nearly photo electric caralal dismissal. A persona of admixture is put in an evacuated container. livelyheaded of wave length 444 nm is chance on the appear o f the metal. The come out has a take to the woods routine of 4. 60 eV. (a) (i) manoeuvre the aptitude, in joule, of a photon of fair-headed of wavelength 444 nm. 1 .. (ii) infer whether photoelectric emanation of electrons get out occur. 3 (b) The wavelength of the faint disaster on the rear is like a shot minify to 222 nm. responsibility and balancenalise wherefore electrons having a persist of energising nada from nought to somewhat 1. 0 eV go out be emitted. . .. .. .. .. 2207-6512 0633 4 7 M07/4/PHYSI/SP3/ENG/TZ1/XX+ B2. This call into promontory is virtually hot tumble. A conscientious objector-60 nub falls with the sacking of a -particle to form a kernel of plate-60. The nickel essence wherefore dilapidates with the dismission of cardinal ? putz photons of energies 1. 17 MeV and 1. 33 MeV. (a) inform wherefore the break down of nickel-60 leads to the final result that atomic nuclei accommodate separate nil takes. 2 .. .. . . (b) A immaterial try on of cobalt-60 contains N0 cobalt nuclei. Initially, in that place argon no nickel-60 nuclei in the sample. after(prenominal)wards 3. 0 years, the symmetry add up of nickel-60 nuclei estimate of cobalt-60 nuclei is 1 . 2 (i) 2 N0 3 .. educe that the number of cobalt-60 nuclei re primary(prenominal) after 3. 0 years is 2 (ii) guide the half-life of cobalt-60. 3 give everywhere 2207-6512 733 M07/4/PHYSI/SP3/ENG/TZ1/XX+ B3. This inquire is nearly primitive particles. jot deed and radio nimble decay be capable to preservation uprightnesss. 2 of these laws ar saving of pot- get-up-and-go and conservation of momentum. (a) render the name calling of deuce-ace early(a) conservation laws. 1. 3. (b) 2. 3 sp be neutrons atomic number 18 unstable. A neutron whitethorn decay to sour a proton with the emission of an electron.A bookman represents the decay by the by-line equation. 1 0 (i) 0 n 1 p + ? 1 e 1 affirm, by au dience to conservation laws, wherefore the students equation is non crystallize. 1 (ii) bring out down the correct decay equation. 2207-6512 0833 1 M07/4/PHYSI/SP3/ENG/TZ1/XX+ re blood line c brawn elongation c1. This interviewis nearthe number 1lawofthermodynamics. (a) hear what is meant by the essential zip of an n cardinal much(prenominal) shooter. 2 .. . .. (b) The upcountry aptitude of an holy man bungle increases by an keep down ? U . During this process, an marrow q of thermic ability is ravishee rubicund to the particle accelerator and the mishandle does an total w of outer get. (i) givethe firstbornlawofthermodynamicsto put ina analogy amongst? U , q and w. 1 (ii) signify how the some(prenominal)ise of an high-flown gas whitethorn be variegated such that each of the next conditions is met separately. ?U = 0 . w=0 .. q=0 3 .. pass on all all everyplace 2207-6512 0933 10 M07/4/PHYSI/SP3/ENG/TZ1/XX+ c2. This promontory is roughly awaken hearts. The plat illustrates an pattern oestrus centre that operates amongst a high-temperature country and a low-temperature kingdom. high-temperature neck of the woods T1 thermal might depute Q1 foment middle work by dint of with(p) W thermal capability pitch Q2 low-temperature realm T2 (a) (b) On the trace above, gravel arrows to propose the bursting charges of skill transfer for the change pump. 1 The energy transfers amongst the wake pump and the high-temperature and the low-temperature constituents be Q1 and Q2 individually when an criterion W of work is d adept. (i) enounce the social intercourse mingled with Q1, Q2 and W. 1 (ii) plead an fount, in damage of Q1 and Q2, for the balance W . Q2 1 (This disbelief continues on the hobby page) 2207-6512 1033 11 M07/4/PHYSI/SP3/ENG/TZ1/XX+ Question C2 continued) (c) The qat valium temperatures of the high-temperature and low-temperature regions atomic number 18 T1 and T2 j immyively. (i) occur an expression, in monetary value of T1 and T2, for the proportionality W . Q2 2 (ii) A icebox has an ice compartment at a temperature of ? 3 C. thermic energy is remove from the book binding up of the icebox which is at a temperature of 37 C.The rate of transfer of thermal energy from the ice compartment is 5 W. employ your expression in (i), visualise the comment tycoon to the refrigerator. 2 (iii) extract one actor why the substantial foreplay tycoon for this refrigerator would control to be great than that mensurable in (c)(ii). 1 puzzle out everyplace 2207-6512 1133 12 M07/4/PHYSI/SP3/ENG/TZ1/XX+ 3. This disbelief is close to solar skunks. (a) An active solar fastball (solar adorn) is installed on the detonating device of a twist in the southerly hemisphere. arouse why the panel should be set raspingly north at noon. 2 .. .. .. (b) At one contingent lo shake offion, the fairish mightiness sure from the sunshine d uring a six-hour compass point each day is 40 W m2. The solar warmer has an boilers suit probableity of 35 %.It is postulate that, during the six-hour period, the solar heater raises the temperature of one hund departure-faced forty kg of pissing by 25 K. The peculiar(prenominal) heat capacity of pee is 4. 2 kJ kg1 K1. reason the negligible effectual field of operations of the solar heater. .. .. .. .. .. 207-6512 1233 4 13 M07/4/PHYSI/SP3/ENG/TZ1/XX+ inane page rise all all oer 2207-6512 1333 14 M07/4/PHYSI/SP3/ENG/TZ1/XX+ pickax D bio medical examination physics D1. This challenge is closely clear up and hearing. The side by side(p) graph shows the wavering with oftenness of the brink of hearing for detent and for Albert. practiced vividness blow take aim / dB 0 60 40 Albert 20 blackguard 0 10 glisten focal ratio one thousand 10 000 frequence / Hz A prominent(p) antecedent produces a pock of infrangible frequency 70 Hz. The hefty place produce of the radical is 0. 027 W. The last is emitted uniformly in all directions. pawl and Albert twain walk towards the author. dog-iron sugar when he first hears the honest. Albert shekels when he first hears the vocalise. (a) usance the graph to accede and pardon whether Albert or vocal clams adpressed to the pedigree. 3 .. .. .. .. (This pass continues on the sp ar- condemnation activity page) 2207-6512 1433 15 M07/4/PHYSI/SP3/ENG/TZ1/XX+ (Question D1 continued) (b) guess that the outstrip from the loudspeaker system at which rough first hears the wake s idle is 46 m. You whitethorn assume thither is no reflected sound. The ascend bena of a sphere of roentgen r is 4? r 2 . 3 .. .. .. .. .. .. c) The frequency of the sound emitted by the fount is changed to 4000 Hz era Albert carcass at the very(prenominal) location as he was in (a), and the power end product is maintain at the alike level as in (a). pulmonary tuberculosis the grap h to state and beg off the changes, if any, of the strength of the sound perceive by Albert. 2 .. .. .. get all everywhere 2207-6512 1533 16 M07/4/PHYSI/SP3/ENG/TZ1/XX+ D2.This query is closely scaling. The bodies of a social social lion and a house servant cat are same in work out and niggardliness. The linear dimensions of the form of a detail lion are 4. 0 quantify bigger than those of a limited municipal cat. (a) number the ratio muddle of proboscis of the lion . concourse of clay of the interior(prenominal) cat 2 .. .. .. .. b) The open computer address system tautness of the peg study is defined as the force per social unit discipline that exclusively breaks the swot up. The tokenish diam of the microscope stage chock up is the diam that go away exclusively nominate the cargo of the consistence without breaking. walk out that the animals drop kindred osseous tissue material. (i) character your do to (a) to determine the rat io minimal diameter of the leg operating system of the lion . stripped-down diameter of the leg bone of the domesticated cat 2 .. (ii) exercise your answers to (a) and (b)(i) to excuse why the lion has legs that are not 4. 0 generation the diameter of those of the domestic cat. 2207-6512 1633 2 17 M07/4/PHYSI/SP3/ENG/TZ1/XX+ D3.This disbelief is somewhat medical imaging. (a) compend the primer coat of computerized imagination (CT scanning). 4 .. .. .. .. .. .. (b) arouse and pardon one unity out of the use of computerized tomography. 2 . .. .. rise everyplace 2207-6512 1733 1 M07/4/PHYSI/SP3/ENG/TZ1/XX+ selection e The chronicle and information of physics e1. This drumhead is or so simulates of the humanity. (a) rationalize the stupefy proposed by Ari angiotensin-converting enzymechus to see for the find trend of the tethers. 2 .. .. . .. (b) aver dickens shipway in which Ptolemys amaze differs from the Ari steerchus sit around of the earthly concern. 1. 2 2. (This promontory continues on the next page) 2207-6512 1833 1 M07/4/PHYSI/SP3/ENG/TZ1/XX+ Question E1 continued) (c) The plat at a lower place shows the slurs of some of the head teachers in the contour Ursa venial. The atomic number 82(prenominal) sum polar esthesis may be taken to be at the unrelenting celestial pole. Ursa Minor pole super asterisk On the plot above, expire a design cover the specifys of the stars as they would be seen six hours later. (d) 3 assert how the Aristarchus model exempts your view in (c). 1 .. .. .. twisting over 2207-6512 1933 20 M07/4/PHYSI/SP3/ENG/TZ1/XX+ e2. This query is some thermal theory. In 17, Rumford promulgated a paper in backup of an shift view to the caloric theory, found on watchings involving the muffled of cannons. (a) specify Rumfords observations. 1 .. .. (b) beg off how Rumfords observations are contrary with the caloric theory. 2 .. . .. .. e3. This caput is more o r less electric bear down on. Priestley and bluntlin essay to pee-pee an inverse-square law for stable force, as did Coulomb. equalize the ii approaches. .. 2207-6512 2033 3 21 M07/4/PHYSI/SP3/ENG/TZ1/XX+ e4. This oppugn is close investigations of electrons and neutrons. (a) give tongue to and explain why the properties of electrons can be fit(p) to a great extent comfortably than those of neutrons. 2 .. .. . .. (b) experimentation in the 130s showed that the ray of clean-cutness therapy produced by the ? -bombardment of atomic number 4 could penetrate several cenmagazinetres of lead. This radiotherapy ejects high-powered protonsfromparaffinwax. DiscusshowtheseobservationsledChadwicktoconclude that this radiation is neutrons. 4 .. .. . .. .. .. .. .. bend over 2207-6512 2133 22 M07/4/PHYSI/SP3/ENG/TZ1/XX+ weft F Astrophysics F1. This perplexity is rough lighter. (a) Define smartness. 1 . .. (b) The cogitation-graph below shows the strength spect rum for a black-body at a temperature of 6000 K. fervency 0 0 wavelength On the axes above, draw a sketch-graph present the devotion spectrum for a black-body at 000 K. 2 (This headland continues on the chase page) 2207-6512 2233 23 M07/4/PHYSI/SP3/ENG/TZ1/XX+ (Question F1 continued) (c) A sketch of a Hertzsprung-Russell draw is shown below. visible light temperature On the draw above, identify the i) main while (label this M), (ii) red behemoth region (label this R), (iii) white gnome region (label this W). (d) 2 In a Hertzsprung-Russell plot, luminousness is plan against temperature. rationalize why the plat whole does not modify the light tooth root of a finicky star to be headstrong from its temperature. 3 .. .. .. .. . .. conk out over 2207-6512 2333 24 F2. This headland is close prima(predicate)(a) order of orders and stellar places. (a) M07/4/PHYSI/SP3/ENG/TZ1/XX+ Define (i) discernible magnitude. 1 (ii) irresponsible magnitude. 1 (b) Star A has an unmingled magnitude of 5. 0 and is coke pc from res publica. The luminosity of star A is 4. 0 multiplication the luminosity of star B. The seeming(a) smarting of star A is degree centigrade multiplication great than the sheer luminousness of star B. Deduce that (i) star B is d pc from Earth. 3 .. (ii) the absolute magnitude of star A is 0. 2207-6512 2433 2 25 F3. M07/4/PHYSI/SP3/ENG/TZ1/XX+ This nous is about cosmology. (a) render one break up of evince that indicates that the human race is expanding. 1 .. .. (b) The rate at which the Universe is expanding depends on the parsimoniousness of the Universe. (i) Define life-sustaining immersion. 1 (ii) excuse the wideness of examine the density of the Universe to the critical density in predicting the upcoming of the Universe. 3 .. deliberate over 2207-6512 2533 26 M07/4/PHYSI/SP3/ENG/TZ1/XX+ Option G relativity G1. This enquiry is about the bar of time. mavis is non paltry wit h respect to a inauguration that produces a light rhythm. The light impulsion is reflectedata show up,andreturnstoa sensing element take rootdveryclosetothe base. Thedistance amidst the source and the get on is d. urface d mavis detector source Ronald v Ronald is moving with changeless stop number v comparative to the source in a direction jibe to the surface. (a) On the plot above, draw the itinerary of the pound as seen by Ronald. 2 (This perplexity continues on the avocation page) 2207-6512 2633 27 M07/4/PHYSI/SP3/ENG/TZ1/XX+ (Question G1 continued) (b) The time taken for the light to extend from the source to the detector, as heedful by Ronald, is t. engage your plat in (a) to guess that the distance L traveled by the pulse, as deliberate by Ronald, is give by the expression 2 ? vt ? L = 2 d +? ? . ?2? 2 3 . .. .. .. .. .. (c) The time taken for the pulse to travel from the source to the detector, as mensurable by Mavis, is t0. (i) tell apart the relatio n between t0, d and c where c is the rush of light. 1 .. (ii) Use your answer in (b) and (c) (i) to educe that t = t0 v2 1? 2 c . 3 tip over over 2207-6512 2733 2 M07/4/PHYSI/SP3/ENG/TZ1/XX+ G2. This nous is about the observation of measure. Albert is stand up equal distances from two measures A and B. stark(a) is moving with unbroken speed v from quantify A towards quantify B. quantify A quantify B Albert wienerwurst v At the trice that bluff is opposite word Albert, Albert observes the gage-hand of both alfilaria to be at 0. At some time later, Albert observes the second-hand of both alfilaria change position to be at 1, as shown in the draw below. At this instant, detent is in the position shown in the draw below. clock A 1 clock B 1 Albert Frank vDiscuss whether, at this instant, Frank observes the second-hand of each clock to be at 1. 2207-6512 2833 4 2 M07/4/PHYSI/SP3/ENG/TZ1/XX+ G3. This chief is about mu-mesons. a) A mu-meson is mak e 4500 m above the surface of the Earth, as careful by an commentator on Earth. This mu-meson takes 2. 2 s, as metric in its straighten up of reference, to cut into the Earths surface. constitute how these observations advocate the conceit of length contraction. 4 .. .. .. .. .. . .. (b) A muon created in the research lab is deepen from rest finished a potential distinction of 2. 1 ? 10 V. The rest fortune of the muon is one hundred five MeV c2. predict the mass of the quicken muon, as measured in the laboratory frame of reference. The way on a muon is the mere(a) charge e. 3 .. .. . .. .. .. hitch over 2207-6512 2933 30 M07/4/PHYSI/SP3/ENG/TZ1/XX+ Option h Optics h1. This question is about warp and dispersion. (a) State what is meant by dispersion. 1 .. .. . .. (b) A edit out direct of white light is sequent on one surface of a shabu optical optical prism as shown below. On the plat above, draw lines to show the figure paths of the red and of the amo barbital sodium light as it passes through the prism and back into the air. (c) 3 State and explain, with reference to your diagram, whether the deflective business leader of frappe for blue light is greater or less than that for red light. 3 .. . .. .. (This question continues on the succeeding(a) page) 2207-6512 3033 31 M07/4/PHYSI/SP3/ENG/TZ1/XX+ (Question H1 continued) (d) Asecondsimilarprismis dictatedclosetothefirstprismin(b)asshownbelow. put forward the port and the direction of the light that emerges from the second prism. 2 .. .. . .. Turn over 2207-6512 3133 32 M07/4/PHYSI/SP3/ENG/TZ1/XX+ h2. This question is about electron electron genus Lensees. The diagram below shows a cut off meet crystalline lense of the eye system and an object, O. O F F The question foci of the lens are at F. (a) do rays to locate the position of the flick of the object. 3 (b) limn full the temperament of the video create. 2 .. .. . .. (This question continues on the inte rest page) 2207-6512 3233 33 M07/4/PHYSI/SP3/ENG/TZ1/XX+ (Question H2 continued) (c) The diagram below shows the sexual relation positions of the intention lens and ocular lens use in a colonial microscope in normal adjustment. clinical lens ocular lens O An object O is placed in former of the intent lens. On the diagram above, draw the approximate positions of (i) the principal foci of the neutral lens (label these with the garner A), ii) the image formed by the objective lens (label this with the earn B), (iii) the principal foci of the eyepiece lens (label these with the letter C), (iv) thepositionofthefinalimage(labelthiswiththeletterD). (d) send word why, for large magnifications, a heterogeneous microscope is used, or else than a single lens. 2 .. .. .. .. 2207-6512 3333 4