2003 Practice Final Exam

2003 Practice Final Exam - 1 PHYSICS 6 FINAL EXAM SPRING...

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1 PHYSICS 6 FINAL EXAM SPRING 2003 NAME___________________________________________ This is a closed book, closed notes exam. You may use calculators. Make sure you show all your work! You will get partial credit for correct intermediate steps. Useful data and equations: 1 Mole (of substance with atomic mass number [or atomic weight] A) = A grams, which contains No units Avogadro's Number: No = 6.0 x 10 23 speed or velocity = v = distance/time or v = d/t acceleration = change of velocity over time = v / t acceleration due to gravity = g = 9.8 m/s 2 d = (1/2)gt 2 Force = mass × acceleration Work = force × distance Power = Energy/time Classical Momentum = p = m u (m = mass, u = velocity) Classical Kinetic Energy = 1/2 mv 2 Velocity of light: c = 3 x 10 8 meter/sec Relativity relations: Rest Energy = m 0 c 2 Binomial distribution for k identical objects out of n choices (e.g. k heads in n tosses): n!/((n-k)!k!) · ( p ) k (1- p ) n-k where p is the probability for a single one of the k's (e.g. head) c = λ f where λ is wavelength, f is frequency Photon E = h f deBroglie: λ =h / p Bohr model: E n = (-13.6 eV) / n 2 Heisenberg's Uncertainty x p h / 4 π Radioactive decay N(t)=N(0)2 -(t/T(1/2)) Activity = 0.69 N / T(1/2) (N=no. of nuclei, T(1/2) is half life in seconds, Activity is in Bq) 1 Bq = 1 disintegration/sec 1 Curie = 3.7 x 10 10 Bq Constants: Avogadro's Number: N 0 = 6.0 x 10 23 Velocity of light: c = 3 x 10 8 meter/sec Planck's constant h = 6.6x10 -34 J·s or h = 4.1x10 -15 eV· s Units: Mass: 1 Kilogram Energy: 1 J(oule) = 1 Kg m 2 / sec 2 ; 1 electron Volt (eV) = 1.6x10 -19 J 1 MeV = 1.6x10 -13 J Power: 1 Watt = 1 J/s 1 MegaWatt = 10 6 Watt ---------------------------------------------------------------------------------------- time dilation: t = t 0 1- v 2 c 2 length contraction: L = L 0 1- v 2 c 2 velocity addition u = u +V 1+ V u c 2
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2 NAME _________________________________________________ Grades: points /possible points I /100 (multiple choice) II /50 I I I / 3 0 IV /30 V / 5 0 VI________________________/40 (sentences) Total: /300 ----------------------------------------------------------------------------------------------------------
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This note was uploaded on 03/10/2008 for the course PHY 6 taught by Professor Garyr.goldstein during the Spring '06 term at Tufts.

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2003 Practice Final Exam - 1 PHYSICS 6 FINAL EXAM SPRING...

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