Marie Curie
The atomic number represents what part(s) of an atom?
a.) protons & neutrons
b.) protons & electrons
c.) electrons & neutrons
d.) protons
b.) protons & electrons
What are the four types of radiation? (Hint: The fourth we talked about, but not in the context of radiation. Think about fission, what is produced along with energy)
a.) gauss, alpha, gamma, delta
b.) alpha, beta, gamma, delta
c.) alpha, gamma, electron, gauss
d.) alpha, gamma, beta, neutron
d.) alpha, gamma, beta, neutron
What Historical event forced Meitner to leave Germany?
a.) WWI
b.) WWII
c.) Cold War
d.) Manhattan Project
b.) WWII
What material is best for shielding gamma rays?
a.) Paper
b.) Lead
c.) Plastic
d.) Water
b.) Lead
What particle can induce Nuclear reactions in heavy elements?
a.) Neutron
b.) Electron
c.) Proton
d.) Neutrino
a.) Neutron
What did Marie Curie set out to investigate?
a.) Where was the radiation coming from in Becquerel's experiment
b.) How does an element decay into different elements?
c.) Can radioactive decay create new radioactive material?
d.) Was an invisible radioactive substance leaving thorium?
a.) Where was the radiation coming from in Becquerel's experiment
What was the question Harriet Brooks wanted to answer?
a.) Where was the radiation coming from in Becquerel's experiment
b.) How does an element decay into different elements?
c.) Can radioactive decay create new radioactive material?
d.) Was an invisible radioactive substance leaving thorium?
d.) Was an invisible radioactive substance leaving thorium?
What happens when Uranium captures a neutron?
a.) A heavier nucleus is produced
b.) two lighter nucleus, neutrons, and energy is produced
c.) only neutrons and energy are produced
d.) only two lighter nucleus are produced
b.) two lighter nucleus, neutrons, and energy is produced
How many fissions (on average) is a reactor designed to keep a steady chain reaction?
a.) 1
b.) under 1
c.) over 1
d.) 0.5
a.) 1
What in a reactor absorbs neutrons to reduce fission?
a.) Reactor Geometry
b.) Fuel
c.) Moderator
d.) Control rods
d.) Control rods
What electromagnetic wave has the highest energy?
a.) Visible light
b.) x-ray
c.) Infrared
d.) Radio
b.) x-ray
What material can not be carbon dated?
a.) Wood or Charcoal
b.) Bone Collagen
c.) Gemstones
d.) Seeds and Plant Fibers
c.) Gemstones
About how many neutrons are released during fission of Uranium 235?
a.) 2-3
b.) 1
c.) 5-6
d.) 10+
a.) 2-3
What age did J. Ernest Wilkins start college at University of Chicago?
a.) 30
b.) 24
c.) 18
d.) 13
d.) 13
A higher mass nucleus has ______ kinetic energy than a lower mass nucleus.
a.) Higher
b.) Lower
c.) Equal
d.) Zero
b.) Lower
What equation represents radioactive decay?
a.) N(t)= N0e -𝛌t
b.) N(t)= mt+b
c.) N(t)= ln (t) + C
d.) N(t)= t1/2+ C
a.) N(t)= N0e -𝛌t
What was Thorium’s emanation? (Hint:emanation is radioactive gas released by decaying elements)
a.) Xenon
b.) Curium
c.) Radon
d.) Helium
c.) Radon
What is one of the elements produced from the fission of Uranium 235?
a.) Gallium
b.) Curium
c.) Barium
d.) Californium
c.) Barium
What is one thing that can happen to a neutron in a reactor core?
scatter, absorb, fission, or escape
Alpha decay is:
a.) 2 protons + 2 neutrons
b.) 1 proton + 1 neutron
c.) 2 protons + 2 electrons
d.) 1 proton + 1 neutron + 1 electron
a.) 2 protons + 2 neutrons
Marie Curie won the Nobel prize in 1903 in physics and 1911 in Chemistry. What year did Marie Curie die?
a.) 2026
b.) 1910
c.) 1934
d.) 1950
c.) 1934
Who did Brooks study under?
a.) Planck
b.) Rutherford
c.) Boltzmann
d.) Pierre Curie
b.) Rutherford
What did Meitner and Frisch use to calculate how much energy is released in fission? Change in _________
a.) protons
b.) nuclear mass
c.) neutrons
d.) atomic charge
b.) nuclear mass
What does the Wigner-Wilkins Distribution predict?
a.) How many neutrons are in each energy range (slow, medium, fast).
b.) How many neutrons are absorbed in the reactor.
c.) How much energy is released during fission.
d.) How much heat is released during fission.
a.) How many neutrons are in each energy range (slow, medium, fast)
What are the three peaks (in order from lower to higher energy) we saw with the fission of Californium?
Alpha decay, Larger mass decay, Smaller mass decay