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Classical Physics

Classical Physics. Year 10 Pathway C Mr. D. Patterson. Outcomes. Define work as the product of pushing an object (F) over a distance (s) Solve problems using W = Fs = mas. What would you call more work?. Lifting a pen off the floor or lifting a brick off the floor?.

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Classical Physics

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  1. Classical Physics Year 10 Pathway C Mr. D. Patterson

  2. Outcomes • Define work as the product of pushing an object (F) over a distance (s) • Solve problems using W = Fs = mas

  3. What would you call more work? • Lifting a pen off the floor or lifting a brick off the floor? What makes each one require more work? • Pushing a wheelbarrow across a driveway or pushing the same wheelbarrow up the street?

  4. Work • Work is the product of the displacement an object moves and the net force applied to the object in that same direction. • W = work (J) F = force (N) • s = displacement (m) m= mass (kg) • a = acceleration (ms-2)

  5. Example • How much work is done dragging a body for the mafia with a force of 30 N for 200 m?

  6. Example • How much work is done pushing a macbook air up Mt Everest? • hint: Mt Everest is 9 km high and a macbook air has a mass of 1 kg

  7. Outcomes • Define work as the product of pushing an object (F) over a distance (s) • Solve problems using W = Fs = mas • Matthews and Winter Set 21

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