Unit 2 Force & Motion Ch. 5 Sec. 1 Matter in Motion
What’s moving in the pictures? REMINDER… Matter is constantly in motion! from the Earth around the sun to electrons around an atom’s nucleus
Motion motion - occurs when something changes position or moves from Point A to Point B to determine if motion has occurred a point of reference (something not in motion) is needed for comparison (Figure 2 p. 167)
Distance and Displacement Movement from Point A to Point B involves both… the length of the path traveled b/w 2 points [ex. the route you walk to get from the front of the school to this classroom] Displacement includes the distance b/w 2 points AND direction - to determine displacement you must connect Point A & Point B w/ a straight line