Newton’s Laws of Motion

                      Law #1 – Law of inertia

• An Object at rest will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

  • Say that you are in a car and you forgot to wear a seatbelt or just didn’t wear a seatbelt and the car hit something like a tree or another car, then your body would pull you forward and since you weren’t wearing a seat belt and either the airbag would save you or you would fly through the windshield and fall you would probably break something too! Thats all because your body wants to keep going further and it doesn’t want to stop!

                  Another Example:

• Say that you are lying on the couch watching tv or reading with your favorite snack with your favorite blanket. Your body would to want stay at rest because its comfortable and that would be a time when your body would want to be at rest!

How does what you learned apply to a pinball machine?

Newton’s 3 laws can apply to a pinball machine. For example, in law 1, it says: “A object will remain at rest unless acted on by an unbalanced force. An object in motion continues in motion with the same speed and in the same direction unless acted upon by an unbalanced force.” If you had a pinball machine with a marble, say. and the marble wouldn’t move unless you did something to it, like hitting it with a shooter on the pinball machine or a flapper. If you didn’t hit it, it would stay there for hours, but, if it was on an unbalanced force then it would roll down until it hits a steady platform.

                Law #2 -F=ma

         (Force = Mass x Acceleration)

“Acceleration is produced when a force acts on a mass. The greater the mass, (of the object being accelerated), the greater the amount of force needed (to accelerate the object).”

For Example,

• If you were pushing someone on the swing then you would need to have enough force to accelerate the mass.

• Or If you were pulling someone on a sled then you would need enough force to accelerate the mass!

• Thats all Because its Heavy and without force the mass won’t accelerate and stay still!

Law #3

               Action + Reaction Law

       “For Every action there is an equal and opposite reaction!”

For Example,

If 2 people were pushing against each other with their hands and they were on scooters then they would both push backwards!

                                                                                              Or

If you were to tie a balloon with air in it, and not tie it  put it on a string in a straight and then let it go then it would go straight down the line of the string and blow the spit out everywhere!

These examples are both examples of Newton’s 3rd Law of motion because the Law is about  Action and Reaction and for the 1st example it had a lot to do with action and reaction because when 2 people push their hands against each other like the law is when they push their hands against each other then

they would both go backwards because when they push their hands against each other then the action is them pushing their hands against each other and the reaction is them both pushing back. But there is one small thing that could make one person stay where they are and then the other person would go backwards and that would be if that person would weigh a lot more than the other person but that normally would not happen it could sometimes though!