Question 1

When uranium-238 absorbs a neutron, it

Accepted Answer

A)  fissions. 
B)  becomes an alpha emitter. 
C)  emits a neutrino. 
D)  becomes a beta emitter. 
E)  all of these 
A)  fissions. 
B)  becomes an alpha emitter. 
C)  emits a neutrino. 
D)  becomes a beta emitter. 
E)  all of these

Question 2

The energy release in both fission and fusion is mainly in the form of

Accepted Answer

A)  beta radiation. 
B)  alpha radiation. 
C)  gamma radiation. 
D)  kinetic energy of fragments. 
E)  a combination of alpha, beta, and gamma radiation. 
A)  beta radiation. 
B)  alpha radiation. 
C)  gamma radiation. 
D)  kinetic energy of fragments. 
E)  a combination of alpha, beta, and gamma radiation.

Question 3

Which experiences the least electrical force in an electric field?

Accepted Answer

A)  electron 
B)  gamma ray 
C)  alpha particle 
D)  beta particle 
E)  All experience the same force. 
A)  electron 
B)  gamma ray 
C)  alpha particle 
D)  beta particle 
E)  All experience the same force.

Question 4

In the fissioning of uranium, a chain reaction is caused by

Accepted Answer

A)  ejected neutrons. 
B)  the kinetic energy of the decay products. 
C)  the enormous energy release. 
D)  the conversion of mass to energy. 
E)  none of these 
A)  ejected neutrons. 
B)  the kinetic energy of the decay products. 
C)  the enormous energy release. 
D)  the conversion of mass to energy. 
E)  none of these

Question 5

When an element undergoes nuclear transmutation, the result is a completely different

Accepted Answer

A)  element. 
B)  ion of the same element. 
C)  isotope of the same element. 
A)  element. 
B)  ion of the same element. 
C)  isotope of the same element.

Question 6

In which of these processes is an element of matter changed into a completely different element?

Accepted Answer

A)  nuclear fission 
B)  nuclear fusion 
C)  both of these 
D)  neither of these 
A)  nuclear fission 
B)  nuclear fusion 
C)  both of these 
D)  neither of these

Question 7

The mass of an atomic nucleon is nearly

Accepted Answer

A)  twice the mass of an electron. 
B)  four times the mass of an electron. 
C)  a thousand times the mass of an electron. 
D)  two thousand times the mass of an electron. 
A)  twice the mass of an electron. 
B)  four times the mass of an electron. 
C)  a thousand times the mass of an electron. 
D)  two thousand times the mass of an electron.

Question 8

Detonation of a fission type atomic bomb is started by

Accepted Answer

A)  igniting a small thermonuclear bomb. 
B)  splitting a small piece of uranium. 
C)  pressing together several small pieces of uranium. 
D)  turning on a laser cross fire. 
E)  none of these 
A)  igniting a small thermonuclear bomb. 
B)  splitting a small piece of uranium. 
C)  pressing together several small pieces of uranium. 
D)  turning on a laser cross fire. 
E)  none of these

Question 9

Deuterium and tritium are both

Accepted Answer

A)  isotopes of the same element. 
B)  forms of hydrogen. 
C)  both of these 
D)  neither of these 
A)  isotopes of the same element. 
B)  forms of hydrogen. 
C)  both of these 
D)  neither of these

Question 10

Which will leak more neutrons, two separate lumps of uranium or the same two lumps stuck together?

Accepted Answer

A)  two separate lumps 
B)  the same two lumps stuck together 
C)  both the same 
A)  two separate lumps 
B)  the same two lumps stuck together 
C)  both the same

Question 11

Detonation of a fusion type hydrogen bomb is started by

Accepted Answer

A)  turning on a laser cross fire. 
B)  splitting a small piece of uranium. 
C)  pressing together several small pieces of uranium. 
D)  igniting a small fission bomb. 
E)  none of these 
A)  turning on a laser cross fire. 
B)  splitting a small piece of uranium. 
C)  pressing together several small pieces of uranium. 
D)  igniting a small fission bomb. 
E)  none of these

Question 12

In order for an atom to decay to an element which is one greater in atomic number, it can emit

Accepted Answer

A)  one positron and 2 beta particles. 
B)  one alpha particle and 3 beta particles. 
C)  one beta particle. 
D)  all of these 
E)  none of these 
A)  one positron and 2 beta particles. 
B)  one alpha particle and 3 beta particles. 
C)  one beta particle. 
D)  all of these 
E)  none of these

Question 13

The high temperature of the Earth's interior is due mostly to

Accepted Answer

A)  the Earth's natural heat. 
B)  friction as plates move past one another. 
C)  radioactivity. 
D)  great internal pressure. 
A)  the Earth's natural heat. 
B)  friction as plates move past one another. 
C)  radioactivity. 
D)  great internal pressure.

Question 14

Hydrogen is a first-rate fuel for

Accepted Answer

A)  nuclear reactions. 
B)  chemical reactions. 
C)  both of these 
D)  neither of these 
A)  nuclear reactions. 
B)  chemical reactions. 
C)  both of these 
D)  neither of these

Question 15

The atomic number of an element is the same as the number of its

Accepted Answer

A)  neutrons. 
B)  nucleons. 
C)  protons. 
D)  neither of these 
A)  neutrons. 
B)  nucleons. 
C)  protons. 
D)  neither of these

Question 16

When a nucleus emits a beta particle, its atomic number

Accepted Answer

A)  decreases by 2. 
B)  increases by 2. 
C)  decreases by 1. 
D)  increases by 1. 
E)  none of these 
A)  decreases by 2. 
B)  increases by 2. 
C)  decreases by 1. 
D)  increases by 1. 
E)  none of these

Question 17

The effect of putting small amounts of Pu-239 with U-238 is converting U-238 to

Accepted Answer

A)  Pu-239. 
B)  Pb-206. 
C)  U-235. 
D)  Th-239. 
E)  Pa-239. 
A)  Pu-239. 
B)  Pb-206. 
C)  U-235. 
D)  Th-239. 
E)  Pa-239.

Question 18

The half-life of a radioactive substance is INDEPENDENT of

Accepted Answer

A)  the age of the substance. 
B)  the number (if large enough) of atoms in the substance. 
C)  the temperature of the substance. 
D)  whether the substance exists in an elementary state or in a compound. 
E)  all of these 
A)  the age of the substance. 
B)  the number (if large enough) of atoms in the substance. 
C)  the temperature of the substance. 
D)  whether the substance exists in an elementary state or in a compound. 
E)  all of these

Question 19

The half-life of an isotope is one day. At the end of two days the amount that remains is

Accepted Answer

A)  none. 
B)  one-half. 
C)  one-eighth. 
D)  one-quarter. 
E)  none of these 
A)  none. 
B)  one-half. 
C)  one-eighth. 
D)  one-quarter. 
E)  none of these

Question 20

An atom with an imbalance of electrons to protons is

Accepted Answer

A)  an isotope. 
B)  a hadron. 
C)  a baryon. 
D)  an ion. 
E)  none of these 
A)  an isotope. 
B)  a hadron. 
C)  a baryon. 
D)  an ion. 
E)  none of these

When uranium-238 absorbs a neutron, it

The energy release in both fission and fusion is mainly in the form of

Which experiences the least electrical force in an electric field?

In the fissioning of uranium, a chain reaction is caused by

When an element undergoes nuclear transmutation, the result is a completely different

In which of these processes is an element of matter changed into a completely different element?

The mass of an atomic nucleon is nearly

Detonation of a fission type atomic bomb is started by

Deuterium and tritium are both

Which will leak more neutrons, two separate lumps of uranium or the same two lumps stuck together?

Detonation of a fusion type hydrogen bomb is started by

In order for an atom to decay to an element which is one greater in atomic number, it can emit

The high temperature of the Earth's interior is due mostly to

Hydrogen is a first-rate fuel for

The atomic number of an element is the same as the number of its

When a nucleus emits a beta particle, its atomic number

The effect of putting small amounts of Pu-239 with U-238 is converting U-238 to

The half-life of a radioactive substance is INDEPENDENT of

The half-life of an isotope is one day. At the end of two days the amount that remains is

An atom with an imbalance of electrons to protons is

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Temperature, Heat, and Thermodynamics

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Exam 16: The Atomic Nucleus and Radioactivity

When uranium-238 absorbs a neutron, it

The energy release in both fission and fusion is mainly in the form of

Which experiences the least electrical force in an electric field?

In the fissioning of uranium, a chain reaction is caused by

When an element undergoes nuclear transmutation, the result is a completely different

In which of these processes is an element of matter changed into a completely different element?

The mass of an atomic nucleon is nearly

Detonation of a fission type atomic bomb is started by

Deuterium and tritium are both

Which will leak more neutrons, two separate lumps of uranium or the same two lumps stuck together?

Detonation of a fusion type hydrogen bomb is started by

In order for an atom to decay to an element which is one greater in atomic number, it can emit

The high temperature of the Earth's interior is due mostly to

Hydrogen is a first-rate fuel for

The atomic number of an element is the same as the number of its

When a nucleus emits a beta particle, its atomic number

The effect of putting small amounts of Pu-239 with U-238 is converting U-238 to

The half-life of a radioactive substance is INDEPENDENT of

The half-life of an isotope is one day. At the end of two days the amount that remains is

An atom with an imbalance of electrons to protons is

About Science

Atoms

Equilibrium and Linear Motion

Newtons Laws of Motion

Momentum and Energy

Gravity, Projectiles, and Satellites

Fluid Mechanics

Temperature, Heat, and Thermodynamics

Heat Transfer and Change of Phase

Static and Current Electricity

Magnetism and Electromagnetic Induction

Waves and Sound

Light Waves

Properties of Light

Quantum Theory

Physics of Rotation and Equilibrium

Filters