1. What occurs when an object change its position relative to a reference point? A. acceleration B. force C. motion D. speed 2. What do we use to measure the speed of an object? A. speed= distance time B. speed= time distance C. speed= distance x time D. speed= distance - time 3. Which is a unit of speed? A. hr B. kg C. sec D. m/s 4. What do you call the materials that conduct heat? A. Breakable B. Conductors C. Insulator D. Malleable _ 5. What do you call the materials that do not conduct heat? A. Breakable B. Conductors C. Insulator D. Malleable
