Big Hint Start a reference sheet for conversion factors: –Length; 12 inches = 1 foot, 3 feet = yard, 1,760 yds = 5,280 ft = 1 mile 10 mm = 1 cm, 100 cm = 1 meter, 1,000 meters = 1 km 1 x 10 9 nm = 1 x 10 6 μm = 1 x 10 3 mm = 1 meter 2.54 cm = 1 inch km = 1 mile More conversions shown in the front flap of the textbook.

Big Hint Start a reference sheet for conversion factors: –Mass; 1,000 mg = 1 gram, 1,000 g = 1 kg g = 1 lb More conversions shown in the front flap of the textbook.

Big Hint Start a reference sheet for conversion factors: –Time; 60 seconds = 1 min, 60 min = 1 hr, 24 hrs = 1 day, 365 days = 1 yr 3,600 sec = 1 hr More conversions shown in the front flap of the textbook.

Big Hint Start a reference sheet for conversion factors: –Volume; 1 ml = 1 cm 3 1 dm 3 = 1,000 cm 3 = 1 Liter 1,000 mL = 1 L L = 1 gallon More conversions shown in the front flap of the textbook.

Big Hint Start a reference sheet for conversion factors: –Temperature; 0°C = 32°F, 100°C = 212°F °C = (°F - 32) / 1.8 = 5 x (°F - 32) / 9 K = °C More conversions shown in the front flap of the textbook.

Practice Convert the following: –60 mph = ? ft/s

Practice Convert the following: – 77°F = ? K (note, no ° symbol used with K)

Practice Convert the following: – 30 km/h = ? m/s

Practice Convert the following: –500 mL = ? L

Conversions Conversion Example - 1: –The speedometer on your fancy European car reads 25 m/s, and you are driving in a posted 75 km/hr speed zone. Are you speeding?

Conversions Conversion Example - 2: –A truck driver put 500 liters of diesel fuel (ρ = 0.76 g/cm 3 ) into the fuel tank of his vehicle. In kilograms, how much did the mass of the truck increase?

Conversions Conversion Example - 3: –Change the density of 1 g/cm 3 to kg/m 3.