Practical Application Rockets are launched into space to send satellites into Earth’s orbit to gather useful information. Real World Examples The laws of motion can be observed in cross-checking in hockey and Newton’s cradle. Challenge Yourself Make a stomp rocket at home and see how high in the air you can launch it. First, slide one end of plastic tubing over the mouth of the soda bottle and seal it in place with electrical tape. Next place the other end of the plastic tubing over one end of a piece of PVC pipe and seal with tape. Make a rocket out of a single piece of rolled copy paper. Fold one end of the paper over and seal with tape. Slide your paper rocket onto the PVC pipe and when ready, stomp on the bottle and watch your rocket fly. Newton's First Law states that an object will remain at rest or in uniform motion in a straight line unless acted upon by an external force. Newton’s Third Law states that for every action, there is an equal and opposite reaction. Did You Know ? AT HOME EXPERIMENT Exhibit Key Concept Newton’s 1st and 3rd Laws of Motion