Science Bowl Practice Questions

Physics - 5

28.

Short Answer: Who shared the Nobel Prize in Physics in 1909 with Guglielmo Marconi for his
contribution to the development of wireless telegraphy?

ANSWER: (CARL FERDINAND) BRAUN

29.

Short Answer: Who first theoretically predicted the existence of the positron, a positively charged
electron? He received the Nobel Prize in Physics in 1933.

ANSWER: (PAUL ADRIEN MAURICE) DIRAC

30.

Short Answer: Name the female physicist who received the Nobel Prize in 1963 for her discovery
concerning the shell structure of the nucleus.

ANSWER: (MARIA GOEPPERT) MAYER

31.

Short Answer: The constant potential difference across a 2 ohm resistor is 20 volts. How many watts of
power are dissipated by this resistor?

ANSWER: 200 WATTS

32.

Short Answer: The potential difference across a 4 ohm resistor is 20 volts. Assuming that all of the
energy dissipated by this resistor is in the form of heat, how many joules of heat are radiated in 10
seconds?

ANSWER: 1000 JOULES

33.

Multiple Choice: The force acting between two point charges can be computed using which of the
following laws?

w) Ohm's Law
x) Ampere's Law
y) Coulomb's Law
z) Newton's Second Law.

ANSWER: Y -- COULOMB'S LAW