Describing and measuring motion worksheet answer keyUnderstanding the main ideas.1.800m/4 min = 200 m/min2.1600 m/10 min = 160 m/min3.160 m/min east4.look for the beginning of the horizontal line = 800 m5.As he was beside her = no he was not moving relative to her, he was moving with herBuilding Vocabulary6.International System of Units7.Motion reference point8.Velocity9.Speed10. meter