1. Aim: An Introduction to Physics

5. Units This Year Math Review Math Review Kinematics Kinematics Energy Energy Electricity Electricity Magnetism Magnetism Waves Waves Light Light Modern Modern

6. Estimating nearest order of magnitude Human Lifespan Human Lifespan 70 years (round to nearest base 10) 100 years 10 2 years Width of your fingernail Width of your fingernail 1 cm (no need to round) 10 -2 m

7. Height of a 12 story building (each story is about 10 meters) Height of a 12 story building (each story is about 10 meters) 120 meters 100 meters 10 2 meters

8. Units International System of Units (SI) International System of Units (SI) Fundamental SI units: Fundamental SI units: Quantity SI Unit SI symbol Masskilogramkg Lengthmeterm Timeseconds Electric Current ampereA Amount of Substance molemol TemperaturekelvinK

9. Derived Units

10. Common SI Comparisons Head of a pin = 2 mm Head of a pin = 2 mm Width of pinky = 1 cm Width of pinky = 1 cm Height of doorknob, distance between outstretched arms = 1 meter Height of doorknob, distance between outstretched arms = 1 meter Height of 1 story = 10 m Height of 1 story = 10 m

11. 1 liter of water = 1 kg 1 liter of water = 1 kg Small person = 50 kg Small person = 50 kg Football player = 100 kg Football player = 100 kg Duration of a heartbeat at rest = 1 second Duration of a heartbeat at rest = 1 second

12. Current flowing into a computer = 1 amp Current flowing into a computer = 1 amp Maximum current to household device = 10 amps Maximum current to household device = 10 amps Water freezes at 273 Kelvin, boils at 373 Kelvin Water freezes at 273 Kelvin, boils at 373 Kelvin Room temperature is about 300 Kelvin Room temperature is about 300 Kelvin 12 grams of Carbon-12, or the number of carbon atoms in the ‘lead’ of a pencil = 1 mol 12 grams of Carbon-12, or the number of carbon atoms in the ‘lead’ of a pencil = 1 mol

13. Pages for Additional Reading Page 18-19, 27 Page 18-19, 27