Question 1

Helium always has two neutrons in its nucleus.

Accepted Answer

A) True 
 B)False

Question 2

How big is the nucleus of an atom?

Accepted Answer

A) about 1% of the volume of the whole atom 
B) about a millionth of the volume of the whole atom 
C) about a billionth of the volume of the whole atom 
D) about a trillionth of the volume of the whole atom 
A) about 1% of the volume of the whole atom 
B) about a millionth of the volume of the whole atom 
C) about a billionth of the volume of the whole atom 
D) about a trillionth of the volume of the whole atom

Question 3

Nuclear fusion is the source of energy in stars.

Accepted Answer

A) True 
 B)False

Question 4

The symbol indicating the mass number of a nucleus is A.

Accepted Answer

A) True 
 B)False

Question 5

A nucleus of sulfur-35 undergoes beta decay.Write the reaction equation and determine the identity of the daughter nucleus.

Accepted Answer

(a)³⁵₁₆S → ³⁵₁₇Cl

Question 6

Magnetic confinement is used in controlled fusion experiments to

Accepted Answer

A) provide neutrons. 
B) accelerate nuclei. 
C) control a plasma. 
D) excite nuclei into higher energy levels. 
E) inject energy into nuclei. 
A) provide neutrons. 
B) accelerate nuclei. 
C) control a plasma. 
D) excite nuclei into higher energy levels. 
E) inject energy into nuclei.

Question 7

A nucleus of radium-223 undergoes alpha decay.(a)Write the reaction equation and (b)determine the identity of the daughter nucleus.

Accepted Answer

(a)²²³₈₈Ra → ¹¹⁹₈₆Rn

Question 8

When uranium-238 (Z = 92)is bombarded with a neutron,it can change into

Accepted Answer

A) uranium-237. 
B) uranium-239. 
C) protactinium-239 (Z = 91). 
D) neptunium-239 (Z = 93). 
E) none of the above. 
A) uranium-237. 
B) uranium-239. 
C) protactinium-239 (Z = 91). 
D) neptunium-239 (Z = 93). 
E) none of the above.

Question 9

Fission is used in

Accepted Answer

A) atomic bombs. 
B) power plants. 
C) energy for stars. 
D) hydrogen bombs. 
E) a tokamak reactor. 
A) atomic bombs. 
B) power plants. 
C) energy for stars. 
D) hydrogen bombs. 
E) a tokamak reactor.

Question 10

Which of the following is not a method of producing nuclear fusion?

Accepted Answer

A) heating a magnetically confined plasma 
B) forcing nuclei together using lasers 
C) cooling nuclei to very cold temperatures 
D) forcing nuclei together with a nuclear fission explosion 
A) heating a magnetically confined plasma 
B) forcing nuclei together using lasers 
C) cooling nuclei to very cold temperatures 
D) forcing nuclei together with a nuclear fission explosion

Question 11

A nuclear reactor could explode like an atomic bomb.

Accepted Answer

A) True 
 B)False

Question 12

The hydrogen in the universe was formed by

Accepted Answer

A) the energy of the Big Bang. 
B) nuclear fusion reactions in stars. 
C) radioactive decay of heavy elements. 
D) none of the above. 
A) the energy of the Big Bang. 
B) nuclear fusion reactions in stars. 
C) radioactive decay of heavy elements. 
D) none of the above.

Question 13

Gamma radiation is used to kill harmful bacteria in food.

Accepted Answer

A) True 
 B)False

Question 14

When radium-223 (Z = 88)decays to radon-119 (Z = 86),the other particle emitted is a(n)__________.

Accepted Answer

The answer of When radium-223 (Z = 88)decays to radon-119...

Question 15

The number of protons in a nucleus is the

Accepted Answer

A) mass number. 
B) neutron number. 
C) atomic number. 
D) isotope number. 
E) none of the above 
A) mass number. 
B) neutron number. 
C) atomic number. 
D) isotope number. 
E) none of the above

Question 16

Why is nuclear reactor waste radioactive?

Accepted Answer

A) Radiation from the reactor makes everything in or near it radioactive. 
B) Used fuel rods contain fission fragments which are radioactive. 
C) Spent fuel rods pick up contamination from the reactor. 
D) all of the above 
A) Radiation from the reactor makes everything in or near it radioactive. 
B) Used fuel rods contain fission fragments which are radioactive. 
C) Spent fuel rods pick up contamination from the reactor. 
D) all of the above

Question 17

What does the moderator do in a nuclear reactor?

Accepted Answer

A) It is a safety feature that limits the nuclear reaction. 
B) It absorbs neutrons. 
C) It slows down neutrons. 
D) none of the above 
A) It is a safety feature that limits the nuclear reaction. 
B) It absorbs neutrons. 
C) It slows down neutrons. 
D) none of the above

Question 18

When a nucleus in an excited state decays to the ground state,a beta particle is emitted.

Accepted Answer

A) True 
 B)False

Question 19

The symbol indicating the number of neutrons in a nucleus is __________.

Accepted Answer

The answer of The symbol indicating the number of neutrons...

Question 20

The determination of the composition of a material by bombarding it with neutrons and monitoring the emitted radiation is neutron activation analysis.

Accepted Answer

A) True 
 B)False

Helium always has two neutrons in its nucleus.

How big is the nucleus of an atom?

Nuclear fusion is the source of energy in stars.

The symbol indicating the mass number of a nucleus is A.

A nucleus of sulfur-35 undergoes beta decay.Write the reaction equation and determine the identity of the daughter nucleus.

Magnetic confinement is used in controlled fusion experiments to

A nucleus of radium-223 undergoes alpha decay.(a)Write the reaction equation and (b)determine the identity of the daughter nucleus.

When uranium-238 (Z = 92)is bombarded with a neutron,it can change into

Fission is used in

Which of the following is not a method of producing nuclear fusion?

A nuclear reactor could explode like an atomic bomb.

The hydrogen in the universe was formed by

Gamma radiation is used to kill harmful bacteria in food.

When radium-223 (Z = 88)decays to radon-119 (Z = 86),the other particle emitted is a(n)__________.

The number of protons in a nucleus is the

Why is nuclear reactor waste radioactive?

What does the moderator do in a nuclear reactor?

When a nucleus in an excited state decays to the ground state,a beta particle is emitted.

The symbol indicating the number of neutrons in a nucleus is __________.

The determination of the composition of a material by bombarding it with neutrons and monitoring the emitted radiation is neutron activation analysis.

The Study of Motion

Newtons Laws

Energy and Conservation Laws

Physics of Matter

Temperature and Heat

Waves and Sound

Electricity

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Exam 11: Nuclear Physics

Helium always has two neutrons in its nucleus.

How big is the nucleus of an atom?

Nuclear fusion is the source of energy in stars.

The symbol indicating the mass number of a nucleus is A.

A nucleus of sulfur-35 undergoes beta decay.Write the reaction equation and determine the identity of the daughter nucleus.

Magnetic confinement is used in controlled fusion experiments to

A nucleus of radium-223 undergoes alpha decay.(a)Write the reaction equation and (b)determine the identity of the daughter nucleus.

When uranium-238 (Z = 92)is bombarded with a neutron,it can change into

Fission is used in

Which of the following is not a method of producing nuclear fusion?

A nuclear reactor could explode like an atomic bomb.

The hydrogen in the universe was formed by

Gamma radiation is used to kill harmful bacteria in food.

When radium-223 (Z = 88)decays to radon-119 (Z = 86),the other particle emitted is a(n)__________.

The number of protons in a nucleus is the

Why is nuclear reactor waste radioactive?

What does the moderator do in a nuclear reactor?

When a nucleus in an excited state decays to the ground state,a beta particle is emitted.

The symbol indicating the number of neutrons in a nucleus is __________.

The determination of the composition of a material by bombarding it with neutrons and monitoring the emitted radiation is neutron activation analysis.

The Study of Motion

Newtons Laws

Energy and Conservation Laws

Physics of Matter

Temperature and Heat

Waves and Sound

Electricity

Electromagnetism and Em Waves

Optics

Atomic Physics

Special Relativity and Elementary Particles

Filters