Question 1

A gram of radioactive material has a half-life of one year. After 4 years, how much radioactive material will be left?

Accepted Answer

A)  1/2 g 
B)  0 g 
C)  1/8 g 
D)  1/4 g 
E)  none of these 
A)  1/2 g 
B)  0 g 
C)  1/8 g 
D)  1/4 g 
E)  none of these E

Question 2

The most harmful radiations are those that

Accepted Answer

A)  damage living cells. 
B)  kill living cells. 
A)  damage living cells. 
B)  kill living cells. A

Question 3

There is a greater proportion of carbon 14 in

Accepted Answer

A)  new bones. 
B)  old bones. 
C)  same in each 
A)  new bones. 
B)  old bones. 
C)  same in each A

Question 4

A sample of relatively active radioactive material is somewhat

Accepted Answer

A)  cooler than the environment. 
B)  warmer than the environment. 
C)  neither really 
A)  cooler than the environment. 
B)  warmer than the environment. 
C)  neither really

Question 5

A proton has the greatest mass in the nucleus of

Accepted Answer

A)  lead. 
B)  uranium. 
C)  hydrogen. 
D)  plutonium. 
E)  iron. 
A)  lead. 
B)  uranium. 
C)  hydrogen. 
D)  plutonium. 
E)  iron.

Question 6

Compared to protons, the reason neutrons are effective nuclear bullets in nuclear reactions is that a neutron has

Accepted Answer

A)  more penetrating power than a proton. 
B)  more mass than a proton. 
C)  a wider cross section than a proton. 
D)  all of these 
E)  none of these 
A)  more penetrating power than a proton. 
B)  more mass than a proton. 
C)  a wider cross section than a proton. 
D)  all of these 
E)  none of these

Question 7

The source of the Earth's natural heat is

Accepted Answer

A)  molten-hot lava. 
B)  solar energy in the form of fossil fuels. 
C)  radioactive decay in the Earth's core. 
D)  pressure on the Earth's core. 
A)  molten-hot lava. 
B)  solar energy in the form of fossil fuels. 
C)  radioactive decay in the Earth's core. 
D)  pressure on the Earth's core.

Question 8

Electrical forces inside a nucleus contribute nuclear

Accepted Answer

A)  stability. 
B)  instability. 
C)  both of these 
D)  none of these 
A)  stability. 
B)  instability. 
C)  both of these 
D)  none of these

Question 9

When a gamma ray is emitted by a nucleus, the nucleus then has appreciably less

Accepted Answer

A)  charge. 
B)  mass. 
C)  both of these 
D)  neither of these 
A)  charge. 
B)  mass. 
C)  both of these 
D)  neither of these

Question 10

Reactions that take place in a breeder reactor change

Accepted Answer

A)  ions into different ions. 
B)  molecules into different molecules. 
C)  elements into different elements. 
D)  all of these 
E)  none of these 
A)  ions into different ions. 
B)  molecules into different molecules. 
C)  elements into different elements. 
D)  all of these 
E)  none of these

Question 11

It's impossible for a hydrogen atom to emit an alpha particle.

Accepted Answer

A) True 
 B)False

Question 12

The difference in the mass of a nucleon when outside an atomic nucleus compared to inside the nucleus depends on

Accepted Answer

A)  radioactive decay. 
B)  isotopic abundance. 
C)  the distance away from the nucleus. 
D)  the atomic number of the nucleus. 
E)  gamma emission. 
A)  radioactive decay. 
B)  isotopic abundance. 
C)  the distance away from the nucleus. 
D)  the atomic number of the nucleus. 
E)  gamma emission.

Question 13

Fissioning helium would yield a net

Accepted Answer

A)  absorption of energy. 
B)  release of energy. 
C)  neither absorption nor release of energy 
A)  absorption of energy. 
B)  release of energy. 
C)  neither absorption nor release of energy

Question 14

The most abundant element in the universe is

Accepted Answer

A)  hydrogen. 
B)  lead. 
C)  helium. 
D)  americanium. 
E)  uranium. 
A)  hydrogen. 
B)  lead. 
C)  helium. 
D)  americanium. 
E)  uranium.

Question 15

Generally speaking, the larger a nucleus is, the greater its

Accepted Answer

A)  stability. 
B)  instability. 
C)  neither stability nor instability. 
A)  stability. 
B)  instability. 
C)  neither stability nor instability.

Question 16

When a lump of uranium is broken into smaller pieces, the total surface area of the lump

Accepted Answer

A)  increases. 
B)  remains the same. 
C)  decreases. 
A)  increases. 
B)  remains the same. 
C)  decreases.

Question 17

If iron were used as nuclear fuel, it would be best

Accepted Answer

A)  fused. 
B)  fissioned. 
C)  neither fused nor fissioned. 
A)  fused. 
B)  fissioned. 
C)  neither fused nor fissioned.

Question 18

The operation of a cloud chamber relies on

Accepted Answer

A)  acceleration. 
B)  condensation. 
C)  evaporation. 
D)  polarization. 
E)  magnetization. 
A)  acceleration. 
B)  condensation. 
C)  evaporation. 
D)  polarization. 
E)  magnetization.

Question 19

When a beta particle is ejected from a nucleus, the nucleus then has slightly

Accepted Answer

A)  smaller charge and significantly greater mass. 
B)  greater mass and charge. 
C)  greater mass and smaller charge. 
D)  smaller mass and significantly greater charge. 
A)  smaller charge and significantly greater mass. 
B)  greater mass and charge. 
C)  greater mass and smaller charge. 
D)  smaller mass and significantly greater charge.

Question 20

If uranium were split into three equal segments instead of two, the reaction would be

Accepted Answer

A)  less energetic. 
B)  as energetic. 
C)  more energetic. 
D)  Not enough information is given for a reasonable estimate. 
A)  less energetic. 
B)  as energetic. 
C)  more energetic. 
D)  Not enough information is given for a reasonable estimate.

A gram of radioactive material has a half-life of one year. After 4 years, how much radioactive material will be left?

The most harmful radiations are those that

There is a greater proportion of carbon 14 in

A sample of relatively active radioactive material is somewhat

A proton has the greatest mass in the nucleus of

Compared to protons, the reason neutrons are effective nuclear bullets in nuclear reactions is that a neutron has

The source of the Earth's natural heat is

Electrical forces inside a nucleus contribute nuclear

When a gamma ray is emitted by a nucleus, the nucleus then has appreciably less

Reactions that take place in a breeder reactor change

It's impossible for a hydrogen atom to emit an alpha particle.

The difference in the mass of a nucleon when outside an atomic nucleus compared to inside the nucleus depends on

Fissioning helium would yield a net

The most abundant element in the universe is

Generally speaking, the larger a nucleus is, the greater its

When a lump of uranium is broken into smaller pieces, the total surface area of the lump

If iron were used as nuclear fuel, it would be best

The operation of a cloud chamber relies on

When a beta particle is ejected from a nucleus, the nucleus then has slightly

If uranium were split into three equal segments instead of two, the reaction would be

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Exam 16: The Atomic Nucleus and Radioactivity

A gram of radioactive material has a half-life of one year. After 4 years, how much radioactive material will be left?

The most harmful radiations are those that

There is a greater proportion of carbon 14 in

A sample of relatively active radioactive material is somewhat

A proton has the greatest mass in the nucleus of

Compared to protons, the reason neutrons are effective nuclear bullets in nuclear reactions is that a neutron has

The source of the Earth's natural heat is

Electrical forces inside a nucleus contribute nuclear

When a gamma ray is emitted by a nucleus, the nucleus then has appreciably less

Reactions that take place in a breeder reactor change

It's impossible for a hydrogen atom to emit an alpha particle.

The difference in the mass of a nucleon when outside an atomic nucleus compared to inside the nucleus depends on

Fissioning helium would yield a net

The most abundant element in the universe is

Generally speaking, the larger a nucleus is, the greater its

When a lump of uranium is broken into smaller pieces, the total surface area of the lump

If iron were used as nuclear fuel, it would be best

The operation of a cloud chamber relies on

When a beta particle is ejected from a nucleus, the nucleus then has slightly

If uranium were split into three equal segments instead of two, the reaction would be

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