Motion Mind Map
← MotionDescribing motion by speed and direction, finding speed from distance and time, and reading position-time graphs to compare fast, slow, and stopped objects.
- positionWhere an object is compared with a chosen reference point.Mark the ball’s position every second.
- reference pointA chosen place or object used to describe position, motion, or height.The tree is our reference point for the race.
- distanceThe length of a path traveled between places.The distance from home to school is two kilometers.
- directionThe way something moves or points.The ball changed direction when it hit the wall.
- motionA change in an object’s position over time.The motion of the car was smooth and steady.
- speedHow far something moves in a certain amount of time.The cheetah’s speed was 100 kilometers per hour.
- average speedTotal distance divided by total time.Her average speed for the run was 3 meters per second.
- elapsed timeThe amount of time that passes from the start of an event to the end.The elapsed time for the race was 45 seconds.
- unit rateHow much of one quantity there is for one unit of another, like meters for each second.A unit rate of 5 meters per second means 5 meters every second.
- position-time graphA graph showing position against time; a steeper line means faster motion along the measured direction. Its slope can be positive or negative.The flat part of the position-time graph shows when the bike stopped.
- stationaryNot moving.The parked bus is stationary.
- constant speedMoving the same distance in each unit of time, without speeding up or slowing down.The train moved at a constant speed across the flat land.