Honors Physics Second Semester Exam Study Packet

Transcription

1 Honos Physics Second Semese Exam Sudy Packe 1. Wha alue can be deemined fom he slope of a disance s. ime gaph? a) elociy b) acceleaion c) gaiy d) oal disance e) displacemen. Which of he following defines he line on he gaph shown? disance a) consan elociy b) consan acceleaion c) deceasing elociy d) slowing down ime 3. Wha does he gaph shown indicae abou he objec in moion? disance a) I has a consan elociy b) I is speeding up c) I is slowing down d) I is no moing e) none of hese 4. Fo he following disance s. ime gaph: a) Wha is he aeage elociy beween 0 and 6 seconds? (.9m/s) b) Wha is he aeage elociy beween 6 and 8 seconds? (0m/s) c) How fa has he objec aelled in 5 seconds? (15m) x(m) ime (s) 5. A ocke is launched wih an iniial elociy of 75 m/s a a 7 o angle. a) How high up does he ocke go? (59m) b) Wha is is speed a he peak of is ajecoy? (66.8 m/s) c) How much ime passes befoe i his he gound? (6.95s) 6. A ball is hown hoizonally wih an iniial elociy of 10 m/s off he oof of a building. Wha ime will i ake fo he ball o each he gound 0 mees below? (.0s) 7. Wha minimum speed mus a olle coase hae a he op of a 15 mee loop in ode o emain on he ack? (1.1m/s) 8. A 15 gam da is pushed ino a sping-loaded da gun and he sping deice compessed 5.0 cm befoe i is sho a a 7 o angle, landing 15 mees away on he same leel i was sho. a) Wha was he iniial elociy of he da? (13.5 m/s) b) Wha was he kineic enegy of he da? (1.37J) c) Wha was he sping consan of he oy gun? (1090 N/m) 9. A 5 kg child uns up a fligh of sais a eical disance of 3.5 mees in 5 seconds. a) How much wok did he do? (858 J) b) Wha was his change in poenial enegy? (858 J) c) Wha powe did he geneae? (171.5 W) 10. A ock is hown hoizonally off he op of a cliff 10 m high, landing 5 m fom he base. a) How much ime passed befoe he ball hi he gound? (4.95 s) b) Wha is he iniial elociy of he ball in he x and y diecions? (5.05 m/s) c) Wha was he iniial and final hoizonal acceleaion of he ball afe he how? (a x =0) 1

2 11. Wha alue can be deemined fom he slope of a elociy s. ime gaph? a) elociy b) acceleaion c) gaiy d) oal disance e) displacemen 1. Wha foce acs on a 100 kg ca ha acceleaes fom 0 o 5 m/s in 8 seconds? (3750 N) 13. A 65kg junio on a skaeboad pushes off an 87kg senio (who emains sanding) wih a foce of 15 N. Wha was he foce of he senio on he junio? (15 N, Newon s 3 d Law) 14. A olle coase eaches he op of he seepes hill wih a elociy of.0m/s. I hen descends he hill ha is angled a an aeage angle of 48 o and is 45 mees long. Wha will is speed be when i eaches he boom if he coefficien of kineic ficion beween he wheels and he ack is 0.1? (4m/s) 15. Conside he sysem shown: a) Wha causes he sysem o moe? 0.75m (gaiy on he 3kg block) kg b) Wha esiss moemen in he sysem? (ficion on he kg block) c) Wha is he acceleaion of he sysem? = kg (4.1 m/s ) d) How long does i ake he 3kg mass o 1.0m each he floo? (0.7 s) F N F f mg 16. Label he foces acing on he ball: a) as i olls down he amp b) as i slides down he amp 17. pendulums ae of equal lengh bu hae diffeen masses. a) How does he peiod of he heaie pendulum compae o ha of he lighe pendulum? (he peiods will be equal, mass does no affec he peiod of a pendulum) b) How do hei fequencies compae? (fequencies also equal) c) A wha poin is he KE of a pendulum geaes? (a he lowes poin) d) A wha poin is he PE of a pendulum equal o he maximum KE? (a he op of he swing) 18. A sping is seched a lengh of 10 cm when a 1.5 kg mass is hung fom i. a) Wha is he sping consan of he sping? (147 N/m) b) Wha will he peiod be if i is seched anohe 5 cm and eleased? (0.63s) c) Wha equaion will descibe he moion of he sping-mass sysem? ( x Af ) d) Wha will be he speed of he mass when i is cm beyond he equilibium poin? (0.45 m/s) 19. A 6500 Kg open aiload ca coass along wih a consan speed of 9.3 m/s on a leel ack. Rain begins o fall eically and fills he ca a a ae of 3.50 kg/min. Ignoing ficion on he ack, a) Wha is he speed of he ca afe 1½ hous? (8.87 m/s) b) Wha caused he change in speed of he ca? (momenum is always conseed)

3 0. A 5 gam da sikes and becomes embedded in a 0.75kg block of sof wood placed on a hoizonal \ suface in fon of he da gun. When he gun is sho a poin blank ange ino he block of wood, he wood slides a disance of.5 mees befoe he foce of ficion sops i. The coefficien of kineic ficion beween he wood and he suface is 0.75 a) Wha was he elociy of he wood jus afe i was suck by he da? (6.06 m/s) b) Wha was he muzzle elociy of he da? (188m/s) c) Wha is he kineic enegy of he wood/da sysem? (14.3 J) 1 A 5g lead bulle is esed by fiing i ino a fixed block of wood wih a mass of 0.75kg. If he block and he bulle absob all he enegy, and he empeaue of each ises by 0. o C The specific hea of lead is 130 J/kg o C and he specific hea of wood is 1700 J/kg o C. a) Wha was he eneing speed of he bulle? (143m/s) b) Had he block no been fixed, bu had been on a ough suface whee =.5, how fa would he block and bulle slide befoe coming o a sop? (0.83m) c) If he block had been esing on he edge of a able.75 mees high, how fa fom he base of he able would i hae landed? (1.8m). Two objecs collide and bounce off each ohe. Kineic enegy a) is definiely conseed b) is definiely no conseed c) is conseed only of he collision is elasic d) is conseed only if hee was no ficion 3. Wha is he adial equialen fo foce? (oque) 4. Wha is he adial equialen fo mass? (momen of ineia) 5. Wha hemodynamic pocess occus when: a) A gas expands a 1 amosphee, o wice is olume a consan empeaue. (isohemal) b) A gas expands o wice is olume as i is heaed fom 0 o C o 50 o C a consan pessue. (isobaic) c) A gas is heaed fom 0 o C o 50 o C while he olume is held consan. (isochoic) d) A gas expands when he inenal enegy inceases, bu no hea is exchanged. (adiabaic) 6. Wha is he Kelin equialen of: 99 o F? 34 o C? (310 K, 307 K) 7. Wha is he Celsius equialen of 68 o F? 156 K? (0 o C -117 K) 8.Wha is he specific hea of a subsance if 3. kg absobs 1500 J of hea o aise is empeaue 5 o C? (18.75 J/kg o C) 9. A lighening bol ansfes 1.0 C of chage o he eah hough a poenial diffeence of 3kV a) How much enegy was dissipaed in he flash? (76 kj) b) How many lies of wae could be bough o boiling fom 15 o C if all he enegy was dissipaed as hea? (0.78 L) 30. A balloon is gien a chage of 3.x10-1 C. How many elecons has i los? (0,000,000 e) 31. Wha is he poenial beween wo 500nF capacio plaes ha each hold 6.x10-6 C of chage? (.48V) 3. Wha will be he esisance of he 150 Wa ligh bulb in a 10 V cicui? (96) 33. A 0.5 kg hollow ball wih a adius of 0.5 m and a momen of ineia of /3 MR, acceleaes fom 5 RPM o 10 RPM in 8 seconds. a) Wha is is iniial angula speed? (0.4 ad/s) b) Wha is is aeage angula acceleaion? (0.065 ad/s ) c) Wha is he final linea speed? (0.6 m/s) 34. How many kilowas of powe will a 5.0 esiso daw fom a 110 V line? (.4kW) 3

4 35. Ealuae he cicui shown below: 6 F 3 F 10V a) Find he ne esisance of he cicui immediaely afe he swich is closed? (3.93) b) Find he ne capaciance of he cicui. (F) c) Wha maximum cuen flows hough he cicui? (30.5 A) d) Wha maximum cuen flows oe he 8.0 esiso? (13.1 A) 36. Wha is he sengh of he magneic field 15 cm fom a wie caying a 15 A cuen? (x10-5 T) 37. Using he igh-hand ule, find he diecion of foce on a posiie chage moing wih elociy in magneic field, B as shown below: B B B B x x (Ou of he pape (O)) (ino he pape (X)) (Righ) (Up) 38. A ansfome has 500 uns in he pimay coil and 150 uns in he seconday. If he inpu olage is 10V and he oupu cuen is 5 A, wha is he seconday olage and he pimay cuen? (7. V, 0.3 A) 39. A + 3.8nC chage moing pependicula o a 3.3T magneic field expeiences a foce of 0.058N. a) Wha is he pah of he chage? (a cicle) b) How fas is i moing? (4.6x10 6 ) c) Wha is he enegy of he chage in ev, if i weighs 13pg? (0.137J o 8.6x10 7 ev) d) Wha is he adius of he cicula pah of he chage? (4.74m) 40. Pu hese in he pope ode fom longes o shoes waelengh: Ulaiole ligh, infaed ligh, gamma ays, adio waes, micowaes, x-ays, isible ligh ligh ays of ed, geen, oange, yellow, blue, iole (adio, mico, infaed, ROYGBIV, ulaiole, x-ay, gamma ay) 41. Tace he pah of a beam of ligh as i eflecs off and efacs hough and emeges fom he plasic block shown. The inciden angle is 3 o : n = 1.51 a) Wha is he speed of ligh in he block? (1.99x10 8 m/s) b) Wha is he efleced angle? (3 o ) c) Wha is he efaced angle? (0.5 o ) 4. Wha is he ciical angle of ligh fo a lucie-o-ai ineface? (n lucie = 1.51, n ai = 1.00) 43. Whee ae each of he following commonly found? a)dieging lenses (glasses fo nea-sighed people) b) Dieging mios (secuiy mios) c) Coneging lenses (magnifying glasses o glasses fo fa-sighed people) d) Coneging mios (makeup mios) 4

5 44. An objec 1.0 cm all is placed 8.0 cm in fon of a 15.0 cm focal lengh coneging lens. a) Find he image disance (di = -17 cm) b) Calculae he magnificaion (M =.14) c) Sae he following abou he image fomed: i. Is i eal o iual? (iual) ii. Is i magnified o educed? (magnified) iii. Is i upside down o igh side up (RSU) 45. Whie ligh is iewed hough muliple diffacion gaings spaced 6.8x10-6 m apa. A ainbow is seen on a sceen o he igh of he ligh, 1.5 mees fom he iewe, and he iole finge is measued a exacly 9.3 cm fom he ligh. a) Wha is he elociy of he whie ligh? (3x10 8 m/s) b) Wha is he elociy of he iole ligh? (3x10 8 m/s) c) Wha is he waelengh of he iole ligh? (41.6 nm) d) Wha is he fequency of he iole ligh? ( m/s) e) If he ligh wee iewed hough diffacion gaings spaced 7.5x10-6 m apa, wha colo of ligh would be obseed a he 0cm mak? (you wouldn see ligh, hese ae micowaes) 46. Wha kind of image can be ceaed fom: a) a plane mio (RSU same size) b) a coneging mio o lens (RSU and lage, USD and lage, smalle o same size) c) a dieging mio o lens (RSU and smalle) 47. Ligh of waelengh 575 nm falls on a double-sli and he hid ode bigh finge is seen a an angle of 68.7 o. Wha is he sepaaion beween he double slis? (1.85x10 6 m) 48. Wha happens o he speed of a plane as i ges close o he sun? (i speeds up) 49. Wha happens o he angula momenum of a plane as i ges close o he sun? (momenum is always conseed) 50. A speeds ha appoach he speed of ligh: a) wha happens o ime? (Time slows by he faco ( ' 1 c b) Wha happens o lengh? (lengh inceases by (l = l 1 ) c c) Wha happens o mass? (momenum inceases) 51. Define he following: ficional foce, nomal foce, esulan foce, gaiaional foce, oque, Momen of ineia, fequency, peiod, capacio, diode, elecon ol, diffacion, efacion, polaizaion, oal inenal eflecion, ciical angle, 5. Know unis fo: displacemen, elociy, acceleaion, ampliude, fequency, peiod, ime, angula elociy, cuen, elecic chage, hea enegy, momenum, foce, kineic enegy, loudness, inensiy, powe, magneism, elecomoie foce, esisance, magneic flux, wok, waelengh, index of efacion, coefficien of ficion, capaciance, elecic poenial, oque, momen of ineia 53. Know he conibuions o expeimens of he following people: Aisachos, Polemy, Galileo, Keple, Bahe, Maxwell, Michaelson-Moely, Young, Einsein, Compon, Daisson and Geme )) 5

6 54. Know he names of hese equaions: 1 m OI 1 B R = o + a x o a y g o sin R g Q = mct o ax ( m i m m Fg G 1 1 m) m1 1 m l T m 11 m ( m1 m) f ) F = ma g V = IR m Enegy = qv Emf NBA ' 1 c q1q Fe k F = p/ p = m W f = mgd (on a fla suface) PE = mgh U sp = 1/ kx F = m(- o ) F sp = kx C = KE o A/d V = Ed W = qed Q V k Q = CV m = dsin m = dy/l mgcos PV = nrt 6