Lesson 2: Particle Physics

Multiple Choice

Finish the following:

⁵⁵Fe → β + _____

• ⁵⁵Co

• ⁵¹Cr

• ⁵⁵Cr

• ⁵¹Co

Multiple Choice

Solve this equation for alpha decay.
₈₅²⁰⁹At = ___ + ₂⁴He

• ₈₃²⁰⁵Bi
• ₈₆²⁰⁹Rn
• ₈₁²⁰⁷Tl
• ₈₅²⁰⁸At

Multiple Choice

Balance the following equation:
¹⁴₆C --> ⁰_-1e + ________

• ¹⁴₅B
• ¹⁴₆C
• ¹⁴₇N
• ⁴₂He

Multiple Choice

• A

• B

• C

• D

Multiple Choice

What is gamma radiation?

• helium nucleus

• two protons and two neutrons

• a stream of electrons

• energy

Multiple Choice

Which are the category of hadrons that contain three quarks ?

• Gluons

• Electrons

• Leptons

• Baryons

Multiple Choice

Protons and neutrons are thought to consist of smaller particles called quarks.

The ‘up’ quark has a charge of +(2/3)e

the ‘down’ quark has a charge of –(1/3) e,

where e is the elementary charge (+1.6 x 10^–19C).

How many up quarks and down quarks must a proton contain?

• 0 up quark, 3 down quarks

• 1 up quark, 1 down quark

• 1 up quark, 2 down quarks

• 2 up quarks, 1 down quark

Multiple Choice

• A

• B

• C

• D

Multiple Choice

Which quarks form a neutron?

• up, up, down

• down, down, down

• up, up, up

• up, down, down

Multiple Choice

a hadron with one quark and one antiquark

• neutron

• baryon

• hadron

• meson

Multiple Choice

Which row gives the correct classification of protons, electrons, and neutrinos?

• A

• B

• C

• D

Multiple Select

What are fundamental particles?

• Quarks

• Electrons

• Protons

• Neutrons

Multiple Choice

Which diagram represents the quark composition of an antineutron?

(see image and key on the right hand side)

• A

• B

• C

• D

Multiple Choice

In a beta-plus decay, what are being emitted along with the daughter nucleus?

• positron and antineutrino

• positron and neutrino

• electron and antineutrino

• electron and neutrino

Multiple Choice

• A

• B

• C

• D

Multiple Choice

• A

• B

• C

• D

Multiple Choice

• A

• B

• C

• D

Multiple Choice

• A

• B

• C

• D