Phys 4, Section 2                                                                 May 2, 2002

1. Who introduced the value h = 6.6 × 10^-34 J·s into physics?
A) Einstein         B) Bohr         C) Planck         D) Marsden

2. In Einstein's photoelectric effect equation: K_max = hf - φ , what does φ stand for?
A) kinetic energy     B) potential energy     C) binding energy     D) momentum

3. What modern problem solved by early quantum methods was concerned with the
ultraviolet catastrophe?
A) blackbody radiation     B) photoelectric effect         C) line spectra
D) scattering problems

4. Who proposed the concept of the nuclear atom?
A) Einstein         B) Thomson     C) Planck     D) Rutherford         E) Geiger

5. Who proposed the concept of the plum pudding atom?
A) Einstein         B) Thomson     C) Planck     D) Rutherford         E) Geiger

6. Geiger invented a counter to alleviate the boredom of manual counting in a
project he was working on under
A) Einstein     B) Thomson         C) Planck         D) Rutherford

7. The possible reversal of ordering of events (due to the concept of simultaneity
as explained in special relativity) destroys the traditional philosophical concept
that effect always follows cause.
A) true                 B) false

8. A child sitting next to a window is spinning a toy while riding on a high-speed
spaceship. The top will appear to spin more rapidly to an observer who is
A) on the spaceship             B) on earth watching the spaceship go by
C) both observers will see the top with the same spin rate.

9. In the muon-mountain example discussed in class, the muon was not surprised
to reach the base of the mountain alive because
A) the mountain was quite short
B) the muon's clock was running very slowly
C) both of these reasons

10. Who tried to give a reason why orbiting electrons do not lose energy?
A) Einstein         B) Bohr         C) Planck         D) Rutherford

Answers: 1-c, 2-c, 3-a, 4-d, 5-b, 6-d, 7-b, 8-a, 9-a, 10-b