What do You Think ? what if you dropped a 1 pound weight from a
height of 1 foot and then dropped the 1 pound weight from a tall
Which would make the biggest crater ?
Designing your Pinewood Body should take into account
Science and Physics rather than just Style.. Sure a cool looking
pinewood racer will make all the other racers look at your car and
say.. Wow! Thats a COOL Pinewood car!.. But, After the Pinewood
Race, you probably will be taking your car home and no trophy IF
you dont take the principals of Science and Physics and incorporate
them into your Pinewood Car.
But the Pinewood Professor says "No problem!" We
can still make a real cool looking pinewood racer AND make it Fly
right by the rest of the other cars. All you have to do is think
about a few main ideas while designing your car.. So.. what do you
think about the One Pound Weight ?? Science and physics tells us
that the Longer that Gravity has a chance to influence a Weight,
the BIGGER the Crater.. Every time..
The Design of your pinewood derby car body, that's right, Your
Pinewood BODY is super important. You may be thinking aerodynamics
or wind resistance - the smoother the better, and while that's true
to some extent, It's not what we are really talking about here..
We are talking about the ratio between the amount of Pinewood and
Lead Weight as well as the Position of itís Center of Mass.
Huh? what am
I talking about?? YOUR car! Of Course !!
Well, science doesnt actually "SAY" that, It says
(in simplified form)
Potential Energy = Mass (weight of your car) x Height
(how high your center of mass is on the track) x Gravity Well Let's
apply some of that "Science" to Pinewood Racing.. First, we need
to talk about Potential energy
you ever heard someone (probably one of the adults at your race) say,
ďI could just take a block of wood and make it run as fast as all
those cars out there?Ē Are you kidding me, no chance ! And Iíll explain
why. When your car is on the starting line, it has a limited amount
of potential energy. I say limited, because the energy is limited
by two factors. 1.) the weight of your car. 2.) How high that weight
is up one the track. Most pinewood racing rules allow the car to weigh
up to 5 ounces (141.5 grams). If you use less than the allowed 5 ounces,
you are shorting yourself potential energy. This would be bad.
When your Pinewood racer on the starting line it is Full of Potential
energy - Or at least as much energy as you have allowed it to have
(hopefully very close to 5 ounces). Gravity is the FORCE that is
pulling down on it.
It can be a little confusing.. That's why we try to help Pinewood
racers such as yourself with our new DVD Pinewood Speed Secrets 3
- The Science of Speed which not only makes complicated principals
of science- easy to understand, but also provides you with the best
learning tool ever invented - the opportunity to SEE exactly how to
do it! Now we now know for sure that we MUST take Full advantage of
Gravity (which is the only, I repeat -ONLY-- positive force you have
Pulling you down the Slope of the Race Track. You MUST take extra
time and thought designing your pinewood derby body to take advantage
of Every Ounce of potential energy available to you. Other Pinewood
Racers are trying to squeeze every bit of performance out of their
cars and they will leave you in the dust and they will walk away with
the trophy if you donít fully explore this critical aspect of Pinewood
Body design fully.
And More power from Gravity than the other Pinewood Racers in your
heat, means YOU have the advantage! In Essence, All other things
equal, YOUR pinewood racer will "WEIGH MORE" than all the other
cars on the track at the Transfer ZONE.. And if your car weighs
MORE than the other pinewood cars, YOUR CAR WILL BE FASTER! Remember
what I said about the 1 pound weight.. Now at the transfer zone,
the other cars will weigh zero (no effective potential energy).
Your Car, If you follow our Easy to build procedures will weigh
MORE than zero (your car will STILL have potential energy LEFT!)..
|When the race starts, gravity continues to pull down on your
pinewood derby car until the track becomes flat. Now we can
talk about My Favorite ZONE THE TRANSFER ZONE
This transfer zone, slope track to flat track is THE critical area,
which separates the winners from all the rest. When you look at
the transfer zone from a side view, it may not look like much. Just
a small change in elevation between the slope track to flat track,
but when your cars center of mass reaches the flat track Gravity
can no longer help it. So you can see why itís so important to have
gravity act on the center of mass for as long as possible to squeeze
out as much Positive energy as possible. That's Why in our New DVD
Pinewood Speed Secrets 3 , The Science of Speed, we show you what
other racers dont know. How to get MORE power out of the transfer
zone than anyone else on the pinewood derby race track!
I beleive you will WIN this Year !!
So when designing your pinewood derby car body for maximum potential
energy we must: Design to maximize the Concentration of MASS (weight)
taking into account the TRANSFER ZONE. We do this by optomizing
the ratio of Pinewood to Lead Weight (or tungsten weight) as well
as optomizing the Position of Center of Mass with regards to the
TRANSFER ZONE. There you have it.. now you probably already know
more than most of the pinewood racers you will be competing with
but maybe not.. So Let's Keep Reading and Learning how Science and
Physics applys to your pinewood car!
Now on to Weight Placement!! ------>>>>