This

**preview**shows half of the first page. to view the full**3 pages of the document.**PHY1331 – Chapter 1 Textbook Notes

Classical mechanics (Newtonian) “motion of objects that are large relative to

atoms and move at speeds much slower than the speed of light”

Mechanics include length, mass and time, but must choose a standard.

SI Units

Length meter (m)

Mass kilogram (kg)

Time second (s)

Temperature kelvin

Electric current ampere

Amount of substance mole

Fundamental Quantities are: length, time, mass

Derived Quantities are: area, speed, density

Density

Symbol is p

Measured in kg/m3

Equation p = m/V

oV = m/p

om = pV

Review

- Proton carries a positive charge

- Atomic number identifies the number of protons of a chemical element

- Mass number is the number of protons and neutrons (can vary)

- [ ] = means dimensions

Quarks

- 6 different particles that include both protons and neutrons

oup = +2/3

odown = -1/3

ostrange = -1/3

ocharmed = +2/3

obottom = -1/3

otop = +2/3

Dimensional Analysis

- a method used to simplify problems

- quantities only be added/subtracted if they have the same dimensions

- Area (A) = L2 (m2)

- Volume (V) = L3 (m3)

find more resources at oneclass.com

find more resources at oneclass.com

###### You're Reading a Preview

Unlock to view full version