Question 1

What is the minimum energy required to produced an electron-position pair? A electron has a rest mass of 0.511 MeV/c2.

Accepted Answer

A)  0.511 MeV 
B)  1.022 MeV 
C)  2.044 MeV 
D)  3.066 MeV 
A)  0.511 MeV 
B)  1.022 MeV 
C)  2.044 MeV 
D)  3.066 MeV

Question 2

The reaction p + p ? p + ?+ + ? is allowed.

Accepted Answer

A) True 
 B)False

Question 3

A distinctive feature of quarks is that they

Accepted Answer

A)  are always observed singly, since they do not readily interact with other particles. 
B)  have zero charge. 
C)  have zero rest mass. 
D)  have fractional electric charge. 
A)  are always observed singly, since they do not readily interact with other particles. 
B)  have zero charge. 
C)  have zero rest mass. 
D)  have fractional electric charge.

What is the minimum energy required to produced an electron-position pair? A electron has a rest mass of 0.511 MeV/c².

The reaction p + p ? p + ?⁺ + ? is allowed.

A distinctive feature of quarks is that they

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Exam 9: A Universe of Particles

What is the minimum energy required to produced an electron-position pair? A electron has a rest mass of 0.511 MeV/c2.

The reaction p + p ? p + ?+ + ? is allowed.

A distinctive feature of quarks is that they

Measurements in Physics, Motion in One Dimension and Motion in Two Dimensions

Force and Newtons Laws of Motion, Oscillations, Gravitation, Work and Energy

Solids, Fluids, Waves, Sound, Temperature, Thermal Expansion, and Ideal Gases

Heat, the Laws of Thermodynamics, Electric Charges, Forces, and Fields

Electric Energy, Potential, Capacitors, Electric Current, Resistance, Circuits, Magnetic Fields and Forces

Geometrical Optics, Electromagnetic Induction and Alternating Current

Wave Optics and Modern Physics

Nuclear Physics and Atomic Physics

Filters

What is the minimum energy required to produced an electron-position pair? A electron has a rest mass of 0.511 MeV/c².

The reaction p + p ? p + ?⁺ + ? is allowed.