Forces can make things move., It can also make things stop moving., The boy makes the school bag move by pulling., The woman makes the wheelchair move by pushing., The girl makes the dog go slower by pulling., The boy makes the football change direction by pushing., There are two types of forces., Contact forces only work if the objects are touching., Non-contact forces work without the objects touching., Objects fall to the ground because of the force of gravity., Magnets can pull objects towards them without touching them., Electrostatic force is another non-contact force.,

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