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# The Physics of Sports - PowerPoint PPT Presentation

The Physics of Sports. Fermilab. Tevatron, 4 miles around. Main Injector, 2 miles around. Physics explains things that are very, very large. Physics explains things that are very, very small. Physics explains things that are right in front of us. Newton’s First Law.

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## PowerPoint Slideshow about ' The Physics of Sports' - ayla

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Presentation Transcript

Tevatron,

4 miles around

Main Injector,

2 miles around

• Objects at rest remain at rest

• Objects in motion remain in motion

UNTIL YOU APPLY A FORCE

F = ma

What forces are important in sports?

• Ball arrives on 100 downward trajectory

• Big Mac swings up at 250

• Ball takes off at 350

• The optimum home run angle!

Courtesy of A. Nathan, University of Illinois. http://www.npl.uiuc.edu/~a-nathan/pob/

For every action there is an equal and opposite reaction.

Potential Energy

Kinetic Energy

Kinetic Energy

Compression Energy

Heat and Sound Energy

If m1 = m2, then v1 = v2

• Ball material, size, shape, and texture

• Properties of the club, bat, racquet, or stick

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

Air Resistance (drag)http://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html

Fhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.htmlRICTION

Resistance & Frictionhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html

The Power of Spinhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html

Spins in Figure Skatinghttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html

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

Downhill skier speed: 80 mphhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html

Reaction Time in Baseballhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html

Courtesy of R. Adair through A. Nathan.

Equation used: t = √((2d)/g)

Physical laws explain the worldhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.html

• Newton’s Laws of Motion

• Conservation of Energy

• Conservation of Momentum

These laws help us explain everything

Physics really is everywhere!

Visit Fermilabhttp://ffden-2.phys.uaf.edu/211_fall2002.web.dir/Daniel_Lenord/vault.htmlwww.fnal.gov

• Buffalo viewing

• Bicycling

• Walking

• Canoeing

• Fishing

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

• Lederman Science Center

• Tours

• Saturday morning physics