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Published byAvice Watkins Modified over 9 years ago
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Drill: Use the metric prefixes to define these terms
IOT POLY ENGINEERING I1-08 Drill: Use the metric prefixes to define these terms WHAT IS THE DEFINITION OF … Millisecond Kilogram Megawatt Nanometer =10-3 seconds =103 grams =106 Watts =109 meters
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Base Units 7 FUNDAMENTAL SI UNITS: LENGTH - meter MASS - kilogram
IOT POLY ENGINEERING I1-08 Base Units 7 FUNDAMENTAL SI UNITS: LENGTH meter MASS kilogram TIME second ELECTRIC CURRENT ampere THERMODYNAMIC TEMPERATURE - Kelvin AMOUNT OF MATTER mole LUMINOUS INTENSITY candela
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IOT POLY ENGINEERING I1-08 Derived Units Base units can be multiplied or divided to create derived units Examples Area = Length*Width Has units of Length2(ex ft2, m2) Volume = Length * Width * Height Has units of Length3 (ex. ft3, m3) Speed = Distance/Time Has units of Length/Time (ex. mph, m/s)
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Derived Units Units can be converted between different types of units
IOT POLY ENGINEERING I1-08 Derived Units Units can be converted between different types of units Ex. Convert 2 feet into inches. Use conversion factor (1 ft = 12in) Set up ratios to multiply factors
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Derived Units Ex: Convert 3 miles into inches
IOT POLY ENGINEERING I1-08 Derived Units Ex: Convert 3 miles into inches 1 ft = 12 inches 1 mile = 5280 ft Ex: Convert 3 kilometers to centimeters 1 km = 1000 m 1 cm = 0.01 m
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Derived Units Ex: Convert 55 miles/hr into m/s I1-08 1 mile = 5280 ft
IOT POLY ENGINEERING I1-08 Derived Units Ex: Convert 55 miles/hr into m/s 1 mile = 5280 ft 1 ft = 12 inches 1 inch = 2.54 cm 1 cm = 0.01m 1 hr = 60 min 1 min = 60 s
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Classwork With a partner convert the following I1-08
IOT POLY ENGINEERING I1-08 Classwork With a partner convert the following 5 lbs into kg (1kg = 2.2 lb) Convert 10 mph into m/s Convert 2 miles into kilometer
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Homework Convert 3 miles into feet Convert 4 km into mm
IOT POLY ENGINEERING I1-08 Homework Convert 3 miles into feet 1 mile = 5280 feet Convert 4 km into mm 1 km = 1000m 1 mm = m Convert 20 feet into meters 1 ft = 12 in 1 in = 2.54 cm 1 cm = 0.01m
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