Question 1

A chain reaction does not occur in

Accepted Answer

A)  ordinary nuclear reactors. 
B)  breeder reactors. 
C)  fusion reactors. 
D)  fission nuclear weapons. 
A)  ordinary nuclear reactors. 
B)  breeder reactors. 
C)  fusion reactors. 
D)  fission nuclear weapons. C

Question 2

If radium and chlorine combine to form radium chloride, the compound is

Accepted Answer

A)  no longer radioactive. 
B)  half as radioactive as its radium content. 
C)  as radioactive as its radium content. 
D)  twice as radioactive as its radium content. 
A)  no longer radioactive. 
B)  half as radioactive as its radium content. 
C)  as radioactive as its radium content. 
D)  twice as radioactive as its radium content. C

Question 3

Quarks are not present in

Accepted Answer

A)  electrons. 
B)  protons. 
C)  neutrons. 
D)  hadrons. 
A)  electrons. 
B)  protons. 
C)  neutrons. 
D)  hadrons. A

Question 4

An atomic nucleus has a mass that is

Accepted Answer

A)  less than the total mass of its constituent nucleons. 
B)  the same as the total mass of its constituent nucleons. 
C)  more than the total mass of its constituent nucleons. 
D)  Any of theses choices could be correct, depending on the nucleus. 
A)  less than the total mass of its constituent nucleons. 
B)  the same as the total mass of its constituent nucleons. 
C)  more than the total mass of its constituent nucleons. 
D)  Any of theses choices could be correct, depending on the nucleus.

Question 5

The number of major accidents that have occurred at nuclear power plants is

Accepted Answer

A)  3. 
B)  12. 
C)  20. 
D)  88. 
A)  3. 
B)  12. 
C)  20. 
D)  88.

Question 6

Which one or more of the following statements is true in general?

Accepted Answer

A)  Alpha particles are more able to penetrate matter than beta particles and gamma rays. 
B)  Alpha particles are less able to penetrate matter than beta particles and gamma rays. 
C)  Alpha particles are less able to penetrate matter than beta particles but more able to do so than gamma rays. 
D)  Alpha particles are more able to penetrate matter than beta particles but less able to do so than gamma rays. 
A)  Alpha particles are more able to penetrate matter than beta particles and gamma rays. 
B)  Alpha particles are less able to penetrate matter than beta particles and gamma rays. 
C)  Alpha particles are less able to penetrate matter than beta particles but more able to do so than gamma rays. 
D)  Alpha particles are more able to penetrate matter than beta particles but less able to do so than gamma rays.

Question 7

The unit in which atomic masses are usually expressed is the

Accepted Answer

A)  gram. 
B)  eV. 
C)  u. 
D)  quark. 
A)  gram. 
B)  eV. 
C)  u. 
D)  quark.

Question 8

Protons and neutrons are held together to form nuclei by the

Accepted Answer

A)  gravitational interaction. 
B)  strong interaction. 
C)  weak interaction. 
D)  electromagnetic interaction. 
A)  gravitational interaction. 
B)  strong interaction. 
C)  weak interaction. 
D)  electromagnetic interaction.

Question 9

Of the following particles, the only one that is not stable outside an atom is the

Accepted Answer

A)  electron. 
B)  proton. 
C)  neutron. 
D)  neutrino. 
A)  electron. 
B)  proton. 
C)  neutron. 
D)  neutrino.

Question 10

Enriched uranium contains

Accepted Answer

A)  more   than natural uranium. 
B)  more   than natural uranium. 
C)  plutonium. 
D)  tritium. 
A)  more   than natural uranium. 
B)  more   than natural uranium. 
C)  plutonium. 
D)  tritium.

Question 11

The number of quarks in a proton or a neutron is

Accepted Answer

A)  1. 
B)  2. 
C)  3. 
D)  4. 
A)  1. 
B)  2. 
C)  3. 
D)  4.

Question 12

All known charged particles have electric charges that are multiples of ±e except for

Accepted Answer

A)  electrons. 
B)  positrons. 
C)  protons. 
D)  quarks. 
A)  electrons. 
B)  positrons. 
C)  protons. 
D)  quarks.

Question 13

The mass number of the nucleus   is

Accepted Answer

A)  4. 
B)  5. 
C)  9. 
D)  13. 
A)  4. 
B)  5. 
C)  9. 
D)  13.

Question 14

Nuclear fission and fusion reactions give off energy because

Accepted Answer

A)  the binding energy per nucleon is least for nuclei of intermediate size. 
B)  the binding energy per nucleon is greatest for nuclei of intermediate size. 
C)  they result in the production of neutrons. 
D)  they result in the production of plutonium. 
A)  the binding energy per nucleon is least for nuclei of intermediate size. 
B)  the binding energy per nucleon is greatest for nuclei of intermediate size. 
C)  they result in the production of neutrons. 
D)  they result in the production of plutonium.

Question 15

Of the following particles, the one with the smallest mass is the

Accepted Answer

A)  electron. 
B)  proton. 
C)  neutron. 
D)  neutrino. 
A)  electron. 
B)  proton. 
C)  neutron. 
D)  neutrino.

Question 16

When a nucleus of the copper isotope   emits a positron, it becomes

Accepted Answer

A)   
B)   
C)   
D)   
A)   
B)   
C)   
D)

Question 17

The atomic number of a nucleus decreases when it emits

Accepted Answer

A)  a proton. 
B)  a neutron. 
C)  an electron. 
D)  a positron. 
A)  a proton. 
B)  a neutron. 
C)  an electron. 
D)  a positron.

Question 18

The number of neutrons in the nucleus   is

Accepted Answer

A)  4. 
B)  5. 
C)  9. 
D)  13. 
A)  4. 
B)  5. 
C)  9. 
D)  13.

Question 19

The strongest of the fundamental interactions is the

Accepted Answer

A)  gravitational interaction. 
B)  strong interaction. 
C)  weak interaction. 
D)  electromagnetic interaction. 
A)  gravitational interaction. 
B)  strong interaction. 
C)  weak interaction. 
D)  electromagnetic interaction.

Question 20

Which of the following is not a unit of energy?

Accepted Answer

A)  joule. 
B)  kilowatt-hour. 
C)  ampere-hour. 
D)  electron volt. 
A)  joule. 
B)  kilowatt-hour. 
C)  ampere-hour. 
D)  electron volt.

A chain reaction does not occur in

If radium and chlorine combine to form radium chloride, the compound is

Quarks are not present in

An atomic nucleus has a mass that is

The number of major accidents that have occurred at nuclear power plants is

Which one or more of the following statements is true in general?

The unit in which atomic masses are usually expressed is the

Protons and neutrons are held together to form nuclei by the

Of the following particles, the only one that is not stable outside an atom is the

Enriched uranium contains

The number of quarks in a proton or a neutron is

All known charged particles have electric charges that are multiples of ±e except for

The mass number of the nucleus is

Nuclear fission and fusion reactions give off energy because

Of the following particles, the one with the smallest mass is the

When a nucleus of the copper isotope emits a positron, it becomes

The atomic number of a nucleus decreases when it emits

The number of neutrons in the nucleus is

The strongest of the fundamental interactions is the

Which of the following is not a unit of energy?

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Organic Chemistry

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

The Universe Galaxies

Filters

Exam 8: The Nucleus

A chain reaction does not occur in

If radium and chlorine combine to form radium chloride, the compound is

Quarks are not present in

An atomic nucleus has a mass that is

The number of major accidents that have occurred at nuclear power plants is

Which one or more of the following statements is true in general?

The unit in which atomic masses are usually expressed is the

Protons and neutrons are held together to form nuclei by the

Of the following particles, the only one that is not stable outside an atom is the

Enriched uranium contains

The number of quarks in a proton or a neutron is

All known charged particles have electric charges that are multiples of ±e except for

The mass number of the nucleus is

Nuclear fission and fusion reactions give off energy because

Of the following particles, the one with the smallest mass is the

When a nucleus of the copper isotope emits a positron, it becomes

The atomic number of a nucleus decreases when it emits

The number of neutrons in the nucleus is

The strongest of the fundamental interactions is the

Which of the following is not a unit of energy?

The Scientific Method

Motion

Energy

Energy and the Future

Matter and Heat

Electricity and Magnetism

Waves

The Atom

The Periodic Law

Crystals, Ions, and Solutions

Chemical Reactions

Organic Chemistry

Atmosphere and Hydrosphere

The Rock Cycle

The Evolving Earth

The Solar System

The Stars

The Universe Galaxies

Filters