Physics forces quiz

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9th grade Physics Mind Map on Physics forces quiz, created by Cara Denton on 06/11/2017.
Cara Denton
Mind Map by Cara Denton, updated more than 1 year ago
Cara Denton
Created by Cara Denton over 6 years ago
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Resource summary

Physics forces quiz
  1. Newton's 1st Law
    1. An object in motion will stay in motion at a constant velocity unless acted upon by an unbalanced force
      1. AKA the law of inertia
        1. inertia is an object's resistance to change in motion
        2. or if at rest will stay at rest unless...
      2. Forces
        1. Normal Force
          1. the ground pushing up on you
          2. Gravitational Force
            1. The force made by the earth (or other planet) pulling you towards it
            2. Friction
              1. the force that occurs when 2 objects rub against each other
                1. negligible
              2. Newton's 2nd Law
                1. Fnet=ma
                  1. the sum of all forces = mass * acceleration
                    1. acceleration - m/s^2
                      1. mass - kilograms
                        1. Fnet - Newtons
                        2. USE THIS EQUATION FOR EVERYTHINGGGGG
                          1. example problem
                            1. A 5kg box is being pushed to the right 5N. Find the acceleration.
                              1. Fnet=ma
                                1. 5=5a
                                  1. a=1m/s^2
                        3. Free Body Diagrams
                          1. A diagram that shows all the forces that are happening on an object
                            1. Newton's 3rd Law
                              1. every action has an equal opposite reaction
                                1. BUT the 2 forces don't cancel out b/c they are acting on each other - 2 diff objects
                              2. other handy things to know
                                1. gravity acceleration on earth is -9.80 m/s^2
                                  1. 1 kilogram, kilometer, etc = 1000 meter/gram/etc
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