, Matter & Interactions 3rd Edition
Test Question Collection
Chapter 2
October 4, 2010
The questions and equation sheets are in LaTeX. The source for each problem is in a separate .tex file in
a folder that includes that problem’s .eps graphics files, if any. See the SampleTest folder for an example
of how to assemble these problems into an exam, including how to put several problems on a single page.
1
, Things you must know:
Definition of average velocity
Definition of momentum The Momentum Principle
Other physical quantities:
1
γ≡
|v | 2
1−
c
ˆ
f = cos θx , cos θy , cos θz unit vector from angles
Constant Symbol Approximate Value
Speed of light c 3 × 108 m/s
Approx. grav field near Earth’s surface g 9.8 N/kg
Electron mass me 9 × 10−31 kg
Proton mass mp 1.7 × 10−27 kg
Neutron mass mn 1.7 × 10−27 kg
Avogadro’s number NA 6.02 × 1023 atoms/mol
milli m 1 × 10−3 kilo K 1 × 103
micro μ 1 × 10−6 mega M 1 × 106
nano n 1 × 10−9 giga G 1 × 109
pico p 1 × 10−12 tera T 1 × 1012
2
, The Momentum Principle
3
Test Question Collection
Chapter 2
October 4, 2010
The questions and equation sheets are in LaTeX. The source for each problem is in a separate .tex file in
a folder that includes that problem’s .eps graphics files, if any. See the SampleTest folder for an example
of how to assemble these problems into an exam, including how to put several problems on a single page.
1
, Things you must know:
Definition of average velocity
Definition of momentum The Momentum Principle
Other physical quantities:
1
γ≡
|v | 2
1−
c
ˆ
f = cos θx , cos θy , cos θz unit vector from angles
Constant Symbol Approximate Value
Speed of light c 3 × 108 m/s
Approx. grav field near Earth’s surface g 9.8 N/kg
Electron mass me 9 × 10−31 kg
Proton mass mp 1.7 × 10−27 kg
Neutron mass mn 1.7 × 10−27 kg
Avogadro’s number NA 6.02 × 1023 atoms/mol
milli m 1 × 10−3 kilo K 1 × 103
micro μ 1 × 10−6 mega M 1 × 106
nano n 1 × 10−9 giga G 1 × 109
pico p 1 × 10−12 tera T 1 × 1012
2
, The Momentum Principle
3
