1. The Physics of Sports

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

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

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

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 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. 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. Conservation of Momentum

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

15. http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html

16. Air Resistance (drag)

17. FRICTIONFRICTION

19. Resistance & Friction

20. The Power of Spin

21. Spins in Figure Skating

22. Reaction Time

23. Downhill skier speed: 80 mph

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

25. Measure your reaction time…

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

27. 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!

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

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

30. The Physics of Sports