1. The Physics of Sports Geneva Middle School 25 February 2010

2. Physics explains things that are very, very small.

3. Fermilab Accelerator Complex Tevatron, 4 miles around Main Injector, 2 miles around

4. Physics explains things that are very, very large.

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

6. Newton’s First Law Objects at rest remain at rest Objects in motion remain in motion UNTIL YOU APPLY A FORCE

7. Newton’s Second Law F = ma What forces are important in sports?

8. Flight Path

9. The Home Run Swing Ball arrives on 10 0 downward trajectory Andre Dawson and Frank Thomas swing up at 25 0 Ball takes off at 35 0 The optimum home run angle! Courtesy of A. Nathan, University of Illinois. http://www.npl.uiuc.edu/~a-nathan/pob/

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

11. Conservation of Energy Potential Energy Kinetic Energy Compression Energy Heat and Sound Energy

12. Conservation of Momentum If m 1 = m 2, then v 1 = v 2

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

14. How fast can you throw a ball?

15. Momentum transferred Energy stored and released David Rawlings, PGA Golf Professional http://golflessonslondon.wordpress.com/

16. Hockey Slap Shot

17. http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html Pole Vault Progress

18. Air Resistance (drag)

19. FRICTIONFRICTION

21. Resistance & Friction

22. The Power of Spin

23. Spins in Figure Skating

24. Reaction Time

25. Downhill skier speed: 80 mph

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

27. Measure your reaction time…

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

29. Physical laws explain the world Newton’s Laws of Motion Conservation of Energy Conservation of Momentum These laws help us explain everything about sports, but there is more to learn. Physics really is everywhere!

30. Visit Fermilab www.fnal.gov Buffalo viewing Bicycling Walking Roller blading Canoeing Fishing

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

32. The Physics of Sports