IJC H1 PHY H1 P1

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© IJC 2011 8866/Prelim2 [Turn over 2 Data speed of light in free space, c = 3.00 x 108 m s-1 elementary charge, e = 1.60 x 10-19 C the Planck constant, h = 6.63 x 10-34 J s unified atomic mass constant, u = 1.66 x 10-27 kg rest mass of electron, me = 9.11 x 10-31 kg rest mass of proton, mp = 1.67 x 10-27 kg acceleration of free fall, g = 9.81 m s-2 Formulae uniformly accelerated motion, s = ut + ½at2 v2 = u2+ 2as work done on/by a gas, W = pV hydrostatic pressure, p = gh resistors in series, R = R1 + R2 + … resistors in parallel, 1/R = 1/R1 + 1/R2 + …

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© IJC 20 8 Th str Ini t W h A B C D 9 A u fro as Wh A B C D 011 he graph sho raight line. tially, the m hat is the m 1 2 pp t  1 2 1 pp tt   1 2 pp t  1 2 1 pp tt   uniform bea om one end shown in th hat is the va 25 N 50 N 75 N 100 N ows the var momentum is magnitude of 2p 2 1 p 2p 2 1 p am of weigh . When a lo he diagram alue of W? 8 riation with t s p1 at time f the averag ht 50 N is 3 oad of weigh . 8866/Prelim2 6 time of the t1. At time ge force act 3.0 m long a ht W is hung 2 momentum t2 the mome ting on the b and is supp g from that m of a ball as entum is p2 ball betwee ported on a end, the be [T s it is kicked . en times t1 a pivot situa eam is in eq urn over d in a and t2? ted 1.0 m quilibrium,

© IJC 20 10 A b Wh Th W h A B C D 11 Tw act Wh A B C D 12 W h A B C D 011 beam, the w hen a weigh he middle sp hat is the ex 3 x / 2 4 x / 3 2 x 3 x wo 8.0 N for t in opposite hat is the to 2.4 N m 4.2 N m 4.8 N m 9.6 N m hich of the f force x force x work d work d weight of w ht W is hung pring and th xtension wh 2 rces act at e e directions orque of the m m m m following ex x distance m x velocity done ÷ time done x time 8 which may b g from the m he weight ar hen a weigh each end of s. The angle couple exe xpressions d moved in the taken taken 7 8866/Prelim2 be neglecte middle of th re removed ht of 2W is h f a beam of e between th erted on the defines pow e direction 2 ed, is supp o he beam, the . hung from t f length 0.60 he forces a e beam? wer? of the force orted by th r e extension he middle o 0 m. The fo nd the beam e [T ree identica n of each sp of the beam rces are pa m is 60°. urn over al springs. pring is x. ? arallel and

© IJC 20 13 A b pla Wh A B C D 14 Th wa A B C D 15 Wh infr A B C D 16 Tr a an on bu A B C D 011 barrel of m a ank 3.4 m lo hat is the m 80 J 170 J 780 J 1700 J e phase dif avelength 5. 0.6 rad 1.7 ra d 1.9 ra d 3.8 ra d hich of the ra-red to X- fre dec inc dec inc ansverse si d Q are po e of the fol t moving up disp upwa upwa down down ass 50 kg i ong. inimum wo J fference bet .0 cm is d d d d following s -rays in the quency creases creases creases creases nusoidal wa ints on the lowing corr pwards? placement o ards ards nwards nwards 8 s loaded o rk done? tween two p summarises electromag wavele aves of wav rope 5 4  ap rectly descr of Q 8866/Prelim2 8 nto the ba c points sepa s the chan g gnetic spect ength (in a increases increases increases decreases velength  a part and the ribes Q at a movemen downward upwards upwards downward 2 ck of a lorr y arated by a ge in wav e trum? vacuum) s s s s are progres e waves are an instant w nt of Q ds ds y 1.6 m hig distance of e character i speed ( de in remai remai ssing along e travelling when P is d [T h by pushi n f 3.0 cm in a istics on g o (in a vacuu ecreases ncreases ins constan ins constan a horizonta from Q to P isplaced do urn over ng it up a a wave of oing from um) t t al rope. P P. Which ownwards

9 © IJC 2011 8866/Prelim2 [Turn over 17 X is a tube which is closed at one end and Y is a tube that is open at both ends. Both have the same effective length. If the fundamental frequencies of X and Y are fx and fY respectively, the ratio of fx: fY is A 1:1 B 1:2 C 2:1 D 2:3 18 A microwave source at point O produces waves of wavelength 28 mm. A metal reflector is placed as shown. An interference pattern is produced. Constructiv