Saturday, November 3, 2018

LEAFLET: SCIENCE OF SKIING


DID YOU KNOW THAT
YOU CAN LEARN PHYSICS
WHILE SKIING ?

This is about the science involved in downhill skiing.

Why is skiing on packed powder better than skiing right after a snowfall?
What things can I do to be sure of a nice smooth ride down the slope?

What kind of simple machine is a ski slope?

What is aerodynamics? And what does it have to do with skiing?


WHAT KIND OF FORCES ARE INVOLVED IN

 DOWNHILL SKIING?


Energy:  Potential energy at the top of the ski slope -- which changes to kinetic energy when you're in motion.

Gravity:  A force that pulls you to the earth, so it aids downhill motion.

Friction:  Friction occurs when 2 moving surfaces meet.  A lot of friction (rough, bumpy) makes motion harder; and a little friction (smoother) makes motion easier.

Aerodynamics:  Wearing smooth clothes and crouching help you to reduce friction between yourself and the air ››  less drag.  Your shape is more like a bird or a plane  (aerodynamic.)




NOTE

Center of mass, or center of gravity:

Bending your knees helps you find your center of balance.




WHAT KIND OF THINGS CAN I LOOK FOR 

 WHEN I HIT THE SLOPES?


First of all, that ski slope is actually a machine – what we call a simple machine. It's an inclined plane, just like a ramp is. It makes work easier. And if you had to ski down a hill that wasn't smooth, skiing would be harder. Wouldn't it?

After a fresh snowfall, the hill is not so smooth until the snow becomes packed. As you're standing at the top of the hill getting ready to push off, 
your position there gives you a lot of potential energy: the higher you are, the more you have.

Crouching down and pushing off -- kinetic energy of motion combined with the pull of gravity ….. along with a smooth surface and smooth skis -- means YOU will have an exciting ride down the hill!
\
 \
  \___ Whee !                           




REFERENCES:

Skiing: It's All About Friction

Marcia Howell, Univ. of Utah

NOTE: Univ. of Utah is a good resource for sport science 
in general.


NBCLearn.com and the National Science Foundation 
 did videos at the 2010 Winter Olympics on sport science, 
narrated by Lester Holt. See YouTube:     

http://www.nbclearn.com/portal/site/learn/cuecard/47275


Thursday, September 20, 2018

T A B L E O F C O N T E N T S

PLEASE NOTE:   
THIS LIST IS IN CHRONOLOGICAL ORDER, STARTING WITH THE FIRST ENTRY.
THE BLOG IS IN REVERSE CHRONOLOGICAL ORDER, STARTING WITH THE LATEST.

I'D BE HAPPY TO HEAR FROM YOU ABOUT ANYTHING IN THIS BLOG.  THANK YOU!


12/12/10

SHORT SCIENCE LESSON
Energy

01/24/11

HELP WANTED!

02/10/11

OUTLINE:  NEWTON  1-2-3 GO!
Power Point Slides

02/11/11

RACERS
Potential and Kinetic Energy

02/10/11
AMERICAN EDUCATION
The potential in this approach


02/21/11

WELCOME!

How a “dry gulcher” at BC led to this idea!

03/31/11

AN UNFORGETTABLE EXPERIENCE

“Philosophiae Naturalis Principia Mathematica”


08/10/12
UPDATE -- AND “THE GRAVITY/ENERGY TEAM MARCH”
(to the tune of “Battle Hymn of the Republic”)

08/31/12
“THE LAWS OF MOTION”
(to the tune of “The Locomotion”)

08/22/13
IDEAS FOR SCIENCE FAIR PROJECTS
(from ScienceBuddies.org) 

08/22/13
ESTABLISHING A PHYSICS AND GEOMETRY GAME CLUB

08/22/13
THINGS I LIKE TO DO
Interest Inventory for P & G Game Club

12/22/13
“BREAKING” NEWS”

12/22/13
WOULD LOVE YOUR FEEDBACK

02/13/14
GATEWAY TO SCIENCE TV SHOW, Episode 1
Featuring NBCLearn.com winter sports videos (figure skating and skiing)

02/15/14
“THE SLED:  A MATTER OF SOME GRAVITY”
My story, teaching energy and gravity involved in sledding

03/06/14
GATEWAY TO SCIENCE TV SHOW, Episode 2
Hockey geometry from NBCLearn.com; reading my story

03/07/14
CAMBRIDGE SCIENCE FESTIVAL 2014
Recommended “Carnival” events

03/26/14
DOPPLER EFFECT
Doppler Effect and Malaysia Airlines

04/01/14
MORE CAMBRIDGE SCIENCE FESTIVAL SUGGESTIONS

04/09/14
“GADGETS & GIZMOS”
Two physics books about just having fun:  grades 6-8 and grades 9-12

04/14/14
SCIENCE FUN WEEK RECOMMENDATIONS
Including:  Quincy College enters the Cambridge Science Festival!

04/27/14
POPPING A WHEELIE
Do you know the physics?  

05/05/14
KHAN ACADEMY - A WONDERFUL SCIENCE INSTRUCTION RESOURCE

05/06/14
AN INVITATION

05/07/14
PROPOSAL: QUINCY DAY AT THE CAMBRIDGE SCIENCE FESTIVAL

05/12/14
LEAFLET: BICYCLE PHYSICS

05/24/14
BICYCLE RODEO, QUINCY, MASS.

05/25/14
PROPOSAL: SCIENCE GAMES FAIR / CARNIVAL

06/05/14
LEAFLET: PHYSICS OF HULA HOOPING

06/19/14
THE NATIONAL SCIENCE TEACHERS ASSOCIATION (NSTA)
And a gift that I won at the annual convention in Boston

06/19/14
LEAFLET: PHYSICS OF JUMP ROPING

06/26/14
JUMPING ROPE RHYMES

06/30/14
K E Y

07/07/14
THE SCIENCE OF SOFTBALL

007/07/14
THE PHYSICS OF BASEBALL

07/10/14
GOOD NEWS, ESPECIALLY FOR PARENTS OF YOUNG KIDS

07/20/14
PHYSICS OF FOOTBALL
Aerodynamics. Styrofoam glider instructions.

08/08/14
LEAFLET: PHYSICS OF SKATEBOARDING
Doing an ollie

09/23/14
CARTOONS

10/11/14
VIDEO: DR. BASEBALL EXPLAINS “THE WAVE”

10/11/14
VIDEO: VISIT TO ISAAC NEWTON’S HOME

10/15/14
WHAT’S IN A NAME?
From “Newton 1-2-3 Go!” to Gateway to Science: Sports and Games

10/27/14
ABOUT KIDS: JUST 3 THINGS!

11/09/14
CONNECT A MILLION MINDS.COM
Great site! Magic Johnson video. Booklet on football. More!

11/10/14
WHAT’S ALREADY OUT THERE --
in terms of learning physics through games and sports?

01/27/15
ANNOUNCING: SOUTH SHORE SCIENCE FUN HOUSE
At Quincy Center for Innovation 4/25/15, part of the Cambridge Science Festival

06/08/15

TAKE A GUIDED TOUR THROUGH THE SOUTH SHORE SCIENCE FUN HOUSE HELD ON SATURDAY, APRIL 25, 2015

06/08/15

GLIDERS GALORE!   A World In Motion

07/02/15

SCIENCE OF BASKETBALL. A video.

07/05/15

SCIENCE OF CHEERLEADING

7/18/15

SCIENCE OF BASKETBALL -- with a video link

7/20/15

Bicycle Electrical Power at Arizona Diamondbacks AND MNS Power.
Electrical power in a soccer ball, too.

09/02/15

Message to Parents from the National Science Teachers Association

09/03/15

Stoked About Physics

09/29/15

FanFest at Boston College, 2015

11/02/15

LEAFLET:  Chunkin' Pumpkins

02/02/16

LEAFLET:  Science of Skiing

02/19/16

Proposal for a Legislative Resolution

02/19/16

COLLISION!  What's That?

03/27/16

SOUTH SHORE SCIENCE FESTIVAL   
(W.A.V.E.S. --  Wicked Awesome Ventures Into Exciting Science)

03/29/16

The Rainbow Fish / art activity sheet
Combining a story with science and art activities

05/02/16

String-Can Telephones
Science Week with Grade 2 at Saint Agatha School, Milton, Mass.

06/27/16

Lesson Plan:  String-Can Telephones

05/29/16

LEAFLET:  Basketball Backspin

07/02/16

Rare Metals Used in iPhones

09/10/16

Introducing:  POWER OF TEN lists

09/10/16

LEAFLET:  Science of Swimming

10/09/16

A Football Really Rising on its Tippity-Toes?

11/03/16

Catch Some Fantastic Feats on This Video from "People Are Awesome"

12/16/16
San Francisco 49ers STEAM Education Program


12/17/16
LA Galaxy -- Science of Soccer

12/17/16 
The Science of Sport -- A Comprehensive Program!  (introduction)

12/29/16
ARIZONA...WHERE THEY'VE GOT IT TOGETHER TO HELP KIDS LEARN THE SCIENCE OF SPORT!   (detailed)

12/31/16
3rd SOUTH SHORE SCIENCE FESTIVAL  4/22/17

4/25/17
Report on the South Shore Science Festival -- The Song

5/4/17
Science Week 2017, St. Agatha School:  TORQUE

9/13/17
Basketball Math and Geometry from WikiHow

9/21/17
What If Teachers Were Treated Like Pro Athletes?!  Think Of It!

9/25/17
Needed:  Science Fair Projects on Sport Science -- 
Science fair ideas from Science Buddies

11/28/17
NFL Football Exhibit (temporary) -- Boston Museum of Science

12/16/17
South Shore Science Festival IV -- Saturday 4/21/18

12/29/17
Edgerton Center at MIT:  Laser Mazes

5/20/18
South Shore Science Festival 4/21/18

6/10/18
LEAFLET:  PLAYGROUND SCIENCE

6/30/18
LEAFLET:  FOOTBALL

Saturday, June 30, 2018

LEAFLET Football

front, outside, right of leaflet


DID YOU KNOW THAT
YOU CAN LEARN PHYSICS
THROUGH FOOTBALL?

Start to learn about some basic science involved in this game.
It looks at the following questions:

What are some examples in football of potential energy and kinetic energy?

What is 'collision' and what does it have to do with football?

http://sportscience-kathy.blogspot.com

GATEWAY TO SCIENCE:
SPORTS AND GAMES

Quincy, Mass.

inside, left
POTENTIAL ENERGY

and
KINETIC ENERGY

Potential energy is energy of position or place – where you are in the right place to do the job.

Kinetic energy is energy of motion – you are now in action.


QUESTIONS FOR YOU:
Where can you clearly observe potential energy & kinetic energy...

at the line of scrimmage?

when the quarterback is going to pass the ball?

... when the kicker is going for a point after touchdown?


inside, middle
WHAT IS COLLISION?

Collision is much more than an auto accident. 
 Collision happens whenever any two objects touch each other – 
whether it's a light touch or a hard touch. It ranges from:

elastic collision (with a lot of 'give') 
 …..............................to:..........................
inelastic (or non-elastic) collision (OUCH!, this has NO 'give'),

on a scale from 1 to 10 (see below).

Egg Toss (or Water Balloon) Contest: This is one example. 
If you throw the egg gently at close range, 
the catcher experiences elastic collision, say a 1.

On the other hand, if you throw the egg hard and at a distance, 
the egg might break (SPLAT!!) on the catcher; 
call this a 10 (completely non-elastic).

If, however, the catcher moves their hands back 
 (we call this 'giving with' the egg, or it has some 'give'), 
then it increases the distance and time – 
and may result in the egg not being broken. 
This moves it back toward the elastic range, 
and the collision might be a 7.


inside, right

WHAT DO WATER BALLOONS AND EGGS 
HAVE TO DO WITH FOOTBALL?
Playing a water balloon or egg toss game could be a good way to learn how to minimize injuries. First of all, minimizing injury is the reason that helmets and padding are worn. More than equipment is involved in protecting against injury, though.

Knowing how to fall is another way. If a player falls hard on the ground, injury may result. However, if he can roll – thereby extending the time and distance of impact – he is more likely to emerge unharmed.

You know the boxing term,
roll with the punches?
That's about collision!


outside, left
NOTES:









You could think of collision as
being on a scale from 1 to 10:

elastic 1 2 3 4 5 6 7 8 9 10 nonelastic

My scale may help you get the idea of collision.







_______________

Sports and games are the gateway to science, and YOU hold the key!



outside, center
Playing football...

is just one of endless ways to gain an understanding of physics and geometry. I hope this leaflet introduces you to seeing things you never saw before – or wondered about but just didn't know where to start.

Physics and geometry come into play in every activity and event going on around us.
Knowing how things work can add to your performance and to your fun. So give it a try. How?

  • Start with the information here
  • You may not understand everything in it right away, but for now, use what you do understand
  • Do an online search of your own
  • See what books or videos your library has
  • Share them with friends, your class, your team, your scout troop
  • Read my blog and tell others:
    sportscience-kathy.blogspot.com

Thank you! 

 Kathy Hogan