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Forces

Forces. 2 Important Points. What is mass? The AMOUNT of matter making up things Certain things weigh more than others although they take up the same space What is force ? Force is the strength of the object to move in a certain direction

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Forces

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  1. Forces

  2. 2 Important Points • What is mass? • The AMOUNT of matter making up things • Certain things weigh more than others although they take up the same space • What is force? • Force is the strength of the object to move in a certain direction • It is basically an object (with mass) with acceleration • Example: Skydiving • You speed up. Air underneath you can’t push back enough to keep you in the air. • Gravity wins. Adapted from the Wikimedia Commons file “Tandemskydive.png“http://upload.wikimedia.org/wikipedia/commons/2/2c/Tandemskydive.png

  3. Another Example • Lifting up on something heavy • Like a table • The table wins. • Force of the table’s weight pushes down and you can’t lift up with enough force to get it off the ground. Adapted from the Wikimedia Commons file “Force_examples.svg“http://en.wikipedia.org/wiki/File:Force_examples.svg

  4. How Does this Apply to Math? • Lift • Has an equation • Weight • Also has an equation • (Force=mass * gravity) • Drag • Has an Equation • Thrust • Has an Equation • THEY ARE SYSTEMS • Opposing equations are set equal to each other to solve for (as an example): • The LIFT needed to overcome the WEIGHT of the plane! Adapted from the Wikimedia Commons file “Aeroforces.svg“http://en.wikipedia.org/wiki/File:Aeroforces.svg

  5. How Does this Apply to Math? FORCE OF LIFT • Lift • Has an equation • Weight • Also has an equation • (Force=mass * gravity) • Drag • Has an Equation • Thrust • Has an Equation • THEY ARE SYSTEMS • Opposing equations are set equal to each other to solve for (as an example): • The LIFT needed to overcome the WEIGHT of the plane! • During this process, you solve for variables! Adapted from the Wikimedia Commons file “Boeing_747-8_N747EX_First_Flight.jpg“http://en.wikipedia.org/wiki/File:Boeing_747-8_N747EX_First_Flight.jpg WEIGHT

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