PHYS 245 Final Exam

1
PHYS 245 Final Exam

• Students must bring photo ID to exam
• Students must bring a ParSCORE scantron (light
  green) to final.

2
Final Exam Notes

• . Tests cover a mixture of major and minor
  topics
• Finals cover major topics
• About 18 of this final is a test on Chapters
  31, 32 33, so this 18 will include some minor
  topics
• Exam will be almost twice as long as tests have
  been but you will have 3x as much time
• About 75 multiple choice. Some questions may be
  worth more than others as on the last test.
• Last lecture will review first three topics
  listed on next page (and perhaps others.)
• Also, Dr. Ehrlich will have a review session for
  all recitations on May 4, 2004 from
  900am-1100am in Robinson A246.
• The equation list at the end of these notes is
  subject to change.
• Office Hours
• May 3 130pm 230pm
• May 4 200pm-400pm
• May 6 1030am-1130am 130pm-230pm
• May 7 1030am-1130am 130pm-230pm
• Students must bring photo ID to exam

3
Final Exam Notes

• List of major topics
• Electric circuits and power
• Electric Potential and electric and magnetic
  fields
• Lenses
• Half-life processes (RC and radioactive decay)
• Quantum Physics
• Mass-Energy problems (Nuclear Physics)
• Nature of Electromagnetic Radiation
• Elementary Particles
• Structure of Matter (Atoms, Nuclei)

4
Coverage of Ch 31, 32 33

• These chapters were not on the last test and thus
  will be about 18 of final. The best guide to
  the coverage of these chapters is the lecture
  notes.
• Since this material was not covered by a test,
  some questions on relatively minor topics will be
  included
• Ch 31 we covered 31-1 to 31-4
• Ch 32 we covered 32 3,4,5,6,9, 10,11 partially
• Ch 33 we covered 33-3,4,6,7 partially
• Problems will come from Chapter 31 as well as
  Hubbles law.

5
??1/2 0.693 RC.
Mass of electron me 0.00054858 u 0.511
MeV/c2 9.11 x 10-31 kg. Mass of proton mp
1.007276 u 938.27 MeV/c2 1.67265 x
10-27kg. Mass of neutron mn 1.008665 u
939.57 MeV/c2 1.67495 x 10-27 kg. Plancks
Constant h 6.626 x 10-34 J s h / (2?)
1.0546 x 10-34 J s 1.0 eV 1.6 x 10-19
J Electronic charge e 1.6 x 10-19 C c2
931.5 MeV / u Speed of Light c 3.00x108
m/s Coulomb constant k 9.00 x 109 Nm2 /
C2 Hubble Constant (22 km/s) / (106 light
years) 1.0 year 3.1x107 seconds