https://padlet.com/ranelson/ogbli2frrl3i Motion en-us 2017-09-26 13:59:53 UTC 2017-10-02 14:07:56 UTC hello@padlet.com ranelson https://padlet.com/ranelson/ogbli2frrl3i/wish/191254926 Motion occurs when an object moves its position relevant to a reference point. The frame of reference is a coordinate system in which the position of objects are measured. Distance is how far an object moves. Displacement is the distance and direction of an object's change in position from the starting point. ]]> 2017-09-26 14:02:12 UTC https://padlet.com/ranelson/ogbli2frrl3i/wish/191254926 ranelson https://padlet.com/ranelson/ogbli2frrl3i/wish/191262700 Speed is the distance an object travels per unit of time. Any change over time is called a rate. Speed can be calculated by the equation distance(in meters) divided by the time(in seconds). If you are traveling at a constant speed, you can measure your speed over any distance interval. Average speed is the total distance traveled divided by the total time of travel. Instantaneous speed is the speed at any given point of time. If an object is traveling at a constant speed, the instantaneous speed doesn't change. ]]> 2017-09-26 14:14:07 UTC https://padlet.com/ranelson/ogbli2frrl3i/wish/191262700 ranelson https://padlet.com/ranelson/ogbli2frrl3i/wish/191269115 On a distance-time graph, the distance is plotted on the vertical axis and time is on the horizontal axis. Each axis must have a scale that covers the range of numbers.]]> 2017-09-26 14:24:32 UTC https://padlet.com/ranelson/ogbli2frrl3i/wish/191269115 ranelson https://padlet.com/ranelson/ogbli2frrl3i/wish/191270750 Velocity is the speed of an object and the direction of its motion. Because velocity depends on direction as well as speed, the velocity of an object can change even when the speed is constant.]]> 2017-09-26 14:27:30 UTC https://padlet.com/ranelson/ogbli2frrl3i/wish/191270750 ranelson https://padlet.com/ranelson/ogbli2frrl3i/wish/191273063 The crust and mantle combine to make the lithosphere. The lithosphere is broken up into plates that move slowly across the layer below. The moving plates cause earthquakes and volcanoes and also cause oceans to change sizes. The plates also cause continents to change shape and size. The plates move very slowly, only centimeters a year.]]> 2017-09-26 14:31:04 UTC https://padlet.com/ranelson/ogbli2frrl3i/wish/191273063