10/21/10

Post date: Oct 21, 2010 3:56:40 PM

Bell ringer: What is physics?

    • Measurements

      • Are a form of observation

      • May provide evidence to help us formulate a theory

      • Accurate measurements help us make more accurate theories

    • The SI system (the metric system)

      • Used everywhere except USA and Australia

      • Used in SCIENCE

      • Uses prefixes to make larger or smaller increments

    • Distances

      • How far between two points

      • Basic unit is the meter (m)

      • For small measurements, we use the centimeter (1/100th of a meter) or the millimeter (1/1000th of a meter)

      • For large measurements, we use the kilometer (1000 meters)

      • To measure distance, we can use meter sticks and rulers

    • Bill Nye - Measurements