Transcript Slide 1
When you look at this person napping on a picnic blanket, from one meter away, how many times would we have to back up from him to see the entire U.S? a. 101 b. 107 c. 108 d. 1021 1 Topic: The Metric System Metric System Le Systeme International d’Unites (SI) or SI – aka: Metric System – Adopted in 1960 – Standard International measurement – Powers of Ten 2 Topic: The Metric System What is the difference between mass and weight? • Mass measures • Weight the quantity of measures the matter gravitational pull on matter • Standard unit = kg (kilogram) • Standard unit = N (Newtons) • Instrument = Balance • Instrument = Spring scale 3 Topic: The Metric System Length Distance measurement Standard unit = m (meter) Instrument = Ruler 4 Topic: The Metric System Volume • Amount of space occupied by an object • For non-liquid volumes, standard unit = m3 (cubic meter) • For liquid volumes, standard unit = L (liter) • 1 mL = 1cm3 • Instrument = Graduated cylinders or rulers 5 Topic: The Metric System Temperature Heat measurement Standard unit = ⁰C (⁰Celsius) Instrument = Thermometer 6 Topic: The Metric System (k) (h) (da) (d) (c) (m) (µ) (n) kilo 103 hecto 102 deca 101 deci 10-1 centi 10-2 milli 10-3 micro 10-6 nano 10-9 100 Length m Mass g Volume L 7