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Newton’s first law states that an object will move forever unless an unbalanced force is acted upon it. The video shows a ball rolling across the floor and is then stopped. This demonstrates Newton’s first law because because the ball keeps on rolling until stopped by an unbalanced force. But it appears that Newton’s first law doesn’t always apply, for this experiment the ball rolled at a seemingly constant speed and then stopped by an unbalanced force, but if it wasn’t stopped we would see the ball keep on rolling and gradually slow down and come to a stop because of friction of the ball against the floor and air resistance.

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Newton’s second law states that an object will accelerate when acted upon a force. The acceleration depends on the force divided by the mass of the object. The video shows a water bottle being pushed. This demonstrates Newton’s second law because the bottle accelerates when a force is acted upon it. But Newton’s second law doesn’t always apply, for example if the objects mass is too great and the force acting on it is low, then the object won’t accelerate.

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Newton’s third law states that for every action there is an equal opposite reaction. The video shows a bouncy ball being a dropped and bouncing on the table. This demonstrates Newton’s third law because the action of dropping the ball is met with an opposite reaction of the ball bouncing back up. But it appears that Newton’s third law doesn’t always apply, for this experiment the reaction was opposite but it wasn’t equal, because the ball didn’t bounce all the way back to it’s starting point, it bounced only 17cm off the table, but it was dropped off a height of 25cm.