Newton has three laws of motion.
The first law states that an object at rest (not moving) will stay resting until acted on by an unbalanced force. And that any moving object will remain moving in that direction with the same speed unless acted on by another unbalanced force. This means that objects in motion continue to do whatever they are until they are moved or stopped by another element.
Ex. My water bottle is at rest standing up. When i hit it with my hand, the force applied would be unbalanced, causing the water bottle to fall over.
Newton's second law of motion is that force is equal to mass times acceleration. (Acceleration is produced when force acts on mass). These have a direct relationship so as the mass increases, so does the force.
Ex. A filled water bottle would have more mass than an empty one right? So the filled bottle would need more forced applied to be knocked over. The left bottle was really easy to knock over because it was completely empty and there was barely any mass holding it upright. The other was heavier making me apply more force to tip it over.
Newton's third law states that "For every action, there is an equal and opposite re-action" so for every force, there is an equally sized force but in the opposite direction.
Ex. If I pushed the bottle from the top, but didn't apply enough force for me to knock it over, it would come back with force towards me.
Simple stuff guys! :]
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