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The Physics of Sports Main Injector, 2 miles around Tevatron, 4 miles around Fermilab.

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Presentation on theme: "The Physics of Sports Main Injector, 2 miles around Tevatron, 4 miles around Fermilab."— Presentation transcript:

1

2 The Physics of Sports

3 Main Injector, 2 miles around Tevatron, 4 miles around Fermilab

4 Argonne National Laboratory

5 Physics explains things that are very, very large.

6 Physics explains things that are very, very small.

7 Physics explains things that are right in front of us.

8 Newton’s First Law

9 Objects at rest remain at rest Objects in motion remain in motion UNTIL YOU APPLY A FORCE

10 Newton’s First Law

11 Objects tend to resist a change in motion. This is called: Inertia

12 Newton’s Second Law This is an equation F = (something) X (something)

13 Newton’s Second Law F = ma Force = mass X acceleration What forces are important in sports?

14 Flight Path

15 Energy in the baseball/bat collision

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17 The Home Run Swing Ball arrives on 10 0 downward trajectory Big Mac swings up at 25 0 Ball takes off at 35 0 The optimum home run angle! Courtesy of A. Nathan, University of Illinois.

18 Newton’s Third Law For every action there is an equal and opposite reaction.

19 Newton’s Third Law

20 Conservation of Energy Potential Energy Kinetic Energy Compression Energy Heat and Sound Energy

21 Conservation of Momentum If m 1 = m 2, then v 1 = v 2

22 Conservation of Momentum

23 Ball material, size, shape, and texture Properties of the club, bat, racquet, or stick Equipment features

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25 Air Resistance (drag)

26 FRICTIONFRICTION

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29 Resistance & Friction

30 The Power of Spin

31 Spins in Figure Skating

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33 Reaction Time

34 Downhill skier speed: 80 mph

35 Reaction Time in Baseball Courtesy of R. Adair through A. Nathan.

36 Measure your reaction time…

37 Compare your reaction time… Equation used: t = √((2d)/g)

38 Physical laws explain the world Newton’s Laws of Motion Conservation of Energy Conservation of Momentum These laws help us explain everything about sports. Physics really is everywhere!

39 Visit Fermilab Buffalo viewing Bicycling Walking Roller blading Canoeing Fishing

40 Visit Fermilab Lederman Science Center Tours Saturday morning physics Ask a Scientist On-line activities: www-ed.fnal.gov

41 The Physics of Sports


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