In this topic you will learn about different types of movement.

A moving object changes its position. Position is the location of an object. Everything has a position. Your nose has a position in the middle of your face. A race car has a position at the starting line. Some positions change. A race car moves from the starting line to the finish line. Other positions don't change. Your nose stays in the middle of your face.

When an object changes position it is in motion. Motion is a change of position. Some motions are hard to see. A kicked ball may look like a blur. A snail moves so slowly that it doesn't seem to be moving.

Some things move faster than others. Things that move faster have a greater speed. Speed is how fast an object moves. You can judge an object's speed by how quickly it changes position. A fast-moving object changes position quickly. A slow-moving object takes longer to change position.

How is speed measured? You must measure two things: time and distance. Fast-moving objects go long distances in a short period of time. Slow-moving objects take longer to travel the same distance.