Question 1

Which of the following provides the minimum amount of protection you need to block the following form of radiation? beta

Accepted Answer

A) lead suit 
B) suntan lotion 
C) thick leather 
D) T-shirt 
E) none of the above 
A) lead suit 
B) suntan lotion 
C) thick leather 
D) T-shirt 
E) none of the above

Question 2

In the 19th century the famous physicist Lord Kelvin estimated the age of Earth to be much much less than its present estimate.What information did Kelvin not have to account for his error?

Accepted Answer

A) Lord Kelvin knew only classical physics and had no knowledge of anthropological dating. 
B) Lord Kelvin had no knowledge of radio waves for measuring distance and age of planets since they have not yet been introduced into science. 
C) Lord Kelvin was not aware of radioactive decay,a source of energy to keep Earth warm for billions of years. 
D) Lord Kelvin never gave any estimate of the age of Earth. 
A) Lord Kelvin knew only classical physics and had no knowledge of anthropological dating. 
B) Lord Kelvin had no knowledge of radio waves for measuring distance and age of planets since they have not yet been introduced into science. 
C) Lord Kelvin was not aware of radioactive decay,a source of energy to keep Earth warm for billions of years. 
D) Lord Kelvin never gave any estimate of the age of Earth.

Question 3

Elements above uranium in the periodic table do not exist in any appreciable amounts in nature because they have short half-lives.Yet there are several elements below uranium in atomic number with equally short half-lives that do exist in appreciable amounts in nature.How can you account for this?

Accepted Answer

A) These are isotopes formed by living bodies. 
B) These isotopes were placed in nature by the testing of nuclear bombs. 
C) These isotopes were formed from the fusion of even smaller isotopes. 
D) These isotopes result from the radioactive decay of uranium. 
A) These are isotopes formed by living bodies. 
B) These isotopes were placed in nature by the testing of nuclear bombs. 
C) These isotopes were formed from the fusion of even smaller isotopes. 
D) These isotopes result from the radioactive decay of uranium.

Question 4

Is the mass of an atomic nucleus greater or less than the sum of the masses of the nucleons composing it? Why don't the nucleon masses add up to the total nuclear mass?

Accepted Answer

A) Greater.We need to add the masses of the surrounding electrons to the masses of the nucleons. 
B) Neither.The mass of the atomic nucleus is exactly the sum of the masses of the nucleons. 
C) Less.The individual nucleons have greater mass when separated from the nucleus.This additional mass is a result of the energy of separation. 
D) Greater.The mass of the atomic nucleus also has mass of the "atomic glue" that holds the nucleons together in the nucleus. 
A) Greater.We need to add the masses of the surrounding electrons to the masses of the nucleons. 
B) Neither.The mass of the atomic nucleus is exactly the sum of the masses of the nucleons. 
C) Less.The individual nucleons have greater mass when separated from the nucleus.This additional mass is a result of the energy of separation. 
D) Greater.The mass of the atomic nucleus also has mass of the "atomic glue" that holds the nucleons together in the nucleus.

Question 5

If carbon-14 is a beta emitter,what is the likely product of radioactive decay?

Accepted Answer

A) nitrogen-14 
B) carbon-12 
C) oxygen-18 
D) berrylium-10 
E) none of the above 
A) nitrogen-14 
B) carbon-12 
C) oxygen-18 
D) berrylium-10 
E) none of the above

Question 6

Which of the following nuclear equations correctly describes alpha emission?

Accepted Answer

A)  $\begin{array} { c } 
238 \
92
\end{array}$ U ? $\begin{array} { c } 
234 \
90
\end{array}$ Th + $\begin{array} { c } 
4\
2
\end{array}$ He 
B)  $\begin{array} { c } 
238\
92
\end{array}$ U ? $\begin{array} { c } 
234 \
92
\end{array}$ U + $\begin{array} { c } 
4\
2
\end{array}$ He 
C)  $\begin{array} { c } 
238\
92
\end{array}$ U ? $\begin{array} { c } 
242 \
94
\end{array}$ Pu + $\begin{array} { c } 
4 \
2
\end{array}$ He 
D)  $\begin{array} { c } 
238\
92
\end{array}$ U ? $\begin{array} { c } 
4 \
2
\end{array}$ He 
E) none of the above 
A)  $\begin{array} { c } 
238 \
92
\end{array}$ U ? $\begin{array} { c } 
234 \
90
\end{array}$ Th + $\begin{array} { c } 
4\
2
\end{array}$ He 
B)  $\begin{array} { c } 
238\
92
\end{array}$ U ? $\begin{array} { c } 
234 \
92
\end{array}$ U + $\begin{array} { c } 
4\
2
\end{array}$ He 
C)  $\begin{array} { c } 
238\
92
\end{array}$ U ? $\begin{array} { c } 
242 \
94
\end{array}$ Pu + $\begin{array} { c } 
4 \
2
\end{array}$ He 
D)  $\begin{array} { c } 
238\
92
\end{array}$ U ? $\begin{array} { c } 
4 \
2
\end{array}$ He 
E) none of the above

Question 7

The image below shows a beam of radiation passing between two electrically charged plates.  
-Which of the beams is due to a high energy electron?

Accepted Answer

A) a 
B) b 
C) c 
D) all of the above 
E) none of the above 
A) a 
B) b 
C) c 
D) all of the above 
E) none of the above

Which of the following provides the minimum amount of protection you need to block the following form of radiation? beta

In the 19th century the famous physicist Lord Kelvin estimated the age of Earth to be much much less than its present estimate.What information did Kelvin not have to account for his error?

Elements above uranium in the periodic table do not exist in any appreciable amounts in nature because they have short half-lives.Yet there are several elements below uranium in atomic number with equally short half-lives that do exist in appreciable amounts in nature.How can you account for this?

Is the mass of an atomic nucleus greater or less than the sum of the masses of the nucleons composing it? Why don't the nucleon masses add up to the total nuclear mass?

If carbon-14 is a beta emitter,what is the likely product of radioactive decay?

Which of the following nuclear equations correctly describes alpha emission?

The image below shows a beam of radiation passing between two electrically charged plates. -Which of the beams is due to a high energy electron?

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light

Atoms and the Periodic Table

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Time - Reading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: The Nature of Science

Filters

Exam 13: The Atomic Nucleus and Radioactivity

Which of the following provides the minimum amount of protection you need to block the following form of radiation? beta

In the 19th century the famous physicist Lord Kelvin estimated the age of Earth to be much much less than its present estimate.What information did Kelvin not have to account for his error?

Elements above uranium in the periodic table do not exist in any appreciable amounts in nature because they have short half-lives.Yet there are several elements below uranium in atomic number with equally short half-lives that do exist in appreciable amounts in nature.How can you account for this?

Is the mass of an atomic nucleus greater or less than the sum of the masses of the nucleons composing it? Why don't the nucleon masses add up to the total nuclear mass?

If carbon-14 is a beta emitter,what is the likely product of radioactive decay?

Which of the following nuclear equations correctly describes alpha emission?

The image below shows a beam of radiation passing between two electrically charged plates. -Which of the beams is due to a high energy electron?

Patterns of Motion and Equilibrium

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Thermal Energy and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light

Atoms and the Periodic Table

Elements of Chemistry

How Atoms Bond and Molecules Attract

Mixtures

How Chemicals React

Two Classes of Chemical Reactions

Organic Compounds

Rocks and Minerals

Plate Tectonics and Earths Interior

Shaping Earths Surface

Geologic Time - Reading the Rock Record

The Oceans, Atmosphere, and Climatic Effects

Driving Forces of Weather

The Solar System

Stars and Galaxies

The Structure of Space and Time

Prologue: The Nature of Science

Filters