ABSTRACT

Forces are pushes and pulls. We cannot see them but we can notice the effects of them. There are forces of friction, air resistance and gravity. Forces are balanced and unbalanced. When the pull and push are balanced there is no effect; whatever is experiencing the force does not move. When the forces are unbalanced there is movement. When something is not moving there are still forces acting upon the object. Forces make things speed up and slow down. In an object moving at constant speed, the forces are rebalanced. Many playground toys display forces in action, such as swings, slides and see saws. The wind is a force.