# [NFB-Science] Gravity experiments

Larry Wayland lhwayland at sbcglobal.net
Mon Aug 13 01:34:51 UTC 2018

```No, it is not complicated at all. It is just a simple little physics formula. You can plug any number in for the varable "a" and "t" and play with it.  Look up the gravitational forces for the planets and you can get an idea of the difference of each planet. Try the sun and compare it to the earth. Its very interesting.
Larry

-----Original Message-----
From: NFB-Science [mailto:nfb-science-bounces at nfbnet.org] On Behalf Of Jamie P. via NFB-Science
Sent: Sunday, August 12, 2018 4:06 PM
To: NFB Science and Engineering Division List
Cc: Jamie P.
Subject: Re: [NFB-Science] Gravity experiments

It is not at all calculus. Calculus involves rates or change, or derivatives. You can use calculus to write this equation, but it is not necessary. It is algebra at best, because algebra involves replacing numbers with symbols to represent patterns. But you don’t need any prior learning or experience beyond basic arithmetic to do this. All you have to do is plug in the numbers you want for the symbols that represent them. X is position. A is acceleration. T is time. We know that the acceleration on earth is six times what it is on the moon. And we can choose the fixed time or height as we see fit. Choose the time, and it should give you how far the object falls. Choose a distance, and it gives you how long the object takes to fall that far. So it’s algebra at its most basic. But absolutely not calculus at this stage.

Sent from my iPhone

> On Aug 12, 2018, at 13:19, Kendra Schaber via NFB-Science <nfb-science at nfbnet.org> wrote:
>
> Hi Noreen!
> Thank you for the link!!! I hope it will prove useful!!!
>
>
> Thank you for taking the time to read this Email!
> Blessed be!!!
> Kendra Schaber
> Chemeketa Community College,
> 350 Org,
> Citizen’s Climate Lobby,
> National Federation of the Blind of Oregon,
> Capitol Chapter,
> Salem, Oregon.
> Home Email:
> Redwing731 at gmail.com
> Chemeketa Community College Email:
> Kschaber at my.Chemeketa.edu
> Phone:
> 971-599-9991
> “When the student is ready, the teacher will appear”, Author unknown.
> Sent from my iPhone SE.
> Sent from my Gmail Email
> Get Outlook<https://aka.ms/qtex0l> for iOS
> ________________________________
> From: 30042300260n behalf of
> Sent: Sunday, August 12, 2018 05:48
> To: nfb-science at nfbnet.org
> Cc: ngrice5456 at aol.com
> Subject: Re: [NFB-Science] Gravity experiments
>
> Kendra,
> You want to simplify the math problem by having kids figure out their weight on the Moon. Here's a link that explains how to do that.
>
>
> https://sciencing.com/calculate-weight-moon-7812905.html
>
>
> Sincerely,
> Noreen
>
>
>
> -----Original Message-----
> From: Kendra Schaber via NFB-Science <nfb-science at nfbnet.org>
> To: NFB Science and Engineering Division List <nfb-science at nfbnet.org>; 'NFB Science and Engineering Division List' <nfb-science at nfbnet.org>
> Cc: Kendra Schaber <redwing731 at gmail.com>
> Sent: Sat, Aug 11, 2018 5:44 am
> Subject: Re: [NFB-Science] Gravity experiments
>
> Hi all!
> Since I’m going to take math in the winter for my own journey as a college student, this formula will help me out in practicing math. I don’t know if the younger students will be ready for this equation. As I read it, the equation looks like it might be advanced algebra or calculus. I know that schools are teaching algebra to younger students than they did in the past. But I don’t know how many of our students will be ready for this one. We get students from 4 all the way to 17 years old in our BELL program in Oregon. However, I’ll keep it around anyway for the mathamitions of the class room. Besides, I’ll want to give it a try myself just to find out if I get the correct answer or as close to it as the math itself allows because even math is not totally exzact, particularly with circles. I’ve even heard of unsolved math problems. However, this is a good tester even for me.
>
>
> Thank you for taking the time to read this Email!
> Blessed be!!!
> Kendra Schaber
> Chemeketa Community College,
> 350 Org,
> Citizen’s Climate Lobby,
> National Federation of the Blind of Oregon,
> Capitol Chapter,
> Salem, Oregon.
> Home Email:
> Redwing731 at gmail.com
> Chemeketa Community College Email:
> Kschaber at my.Chemeketa.edu
> Phone:
> 971-599-9991
> “When the student is ready, the teacher will appear”, Author unknown.
> Sent from my iPhone SE.
> Sent from my Gmail Email
> Get Outlook<https://aka.ms/qtex0l> for iOS
> ________________________________
> From: NFB-Science <nfb-science-bounces at nfbnet.org> on behalf of Larry Wayland via NFB-Science <nfb-science at nfbnet.org>
> Sent: Friday, August 10, 2018 9:15:19 PM
> To: 'NFB Science and Engineering Division List'
> Cc: Larry Wayland
> Subject: Re: [NFB-Science] Gravity experiments
>
> The formula for calculating the excellaration of a falling object is
> D=.5a*t^2
> D is distance, a is acceleration
> T is time
> On earth, the acceleration is 32 feet per second per second.
> On the moon the accelerationis 32/6 or 5.33333feet per second per second
> Now plug the numbers into the variable a and devide by 2 for the earth it will give you 16
> For the moon that will give you 2.666
> Now if you let a object fall for 2 seconds on the earth that will be 2 squared or 4. Now multiply 4 times 16 which will give you 64 feet so in 2 seconds a object will fall 64 feet on the earth. Bythe way the object will be falling 64 feet per second at that point as well.
> Now the moon.
> Let a object fall for 2 seconds on the moon.
> So we square the time which is 2. So that will be 4.
> Now multiply 4 times 2.666 and you will get 10.664
> So on earth a object will fall 64 feet in two seconds.
> On the moon the object will fall 10.6 feet in two seconds.
> Here we are dropping the object in a vaccume on the earth as it will be on the moon.
> Hope that helps.
>
>
>
>
>
>
>
> -----Original Message-----
> From: NFB-Science [mailto:nfb-science-bounces at nfbnet.org] On Behalf Of Kendra Schaber via NFB-Science
> Sent: Friday, August 10, 2018 8:27 PM
> To: nfb-science at nfbnet.org
> Cc: Kendra Schaber
> Subject: [NFB-Science] Gravity experiments
>
> Hi all!
> I’m looking for ideas on how to compare the gravity of the earth to the gravity of the moon. The moon is one sixth the gravity of the earth. Does anyone have ideas on how to show the gravity from both the earth and the moon?
>
>
> Thank you for taking the time to read this E Mail!
> Blessed be!!!
> Kendra Schaber,
> Chemeketa Community College,
> 350 Org,
> Citizen’s Climate Lobby,
> National Federation of the Blind of Oregon,
> Capitol Chapter,
> Salem, Oregon.
> Home email:
> Redwing731 at gmail.com
> Chemeketa Community College Email:
> Kschaber at my.Chemeketa.edu
> Phone:
> 971-599-9991
> "When the student is ready, the teacher will appear" Author Unknown.
> Sent From My iPhone SE.
> Sent from My Gmail Email.
> Get Outlook Express for IOS.
>
> _______________________________________________
> NFB-Science mailing list
> NFB-Science at nfbnet.org
> http://nfbnet.org/mailman/listinfo/nfb-science_nfbnet.org
> To unsubscribe, change your list options or get your account info for NFB-Science:
> http://nfbnet.org/mailman/options/nfb-science_nfbnet.org/lhwayland%40sbcglobal.net
>
>
> _______________________________________________
> NFB-Science mailing list
> NFB-Science at nfbnet.org
> http://nfbnet.org/mailman/listinfo/nfb-science_nfbnet.org
> To unsubscribe, change your list options or get your account info for NFB-Science:
> http://nfbnet.org/mailman/options/nfb-science_nfbnet.org/redwing731%40gmail.com
> _______________________________________________
> NFB-Science mailing list
> NFB-Science at nfbnet.org
> http://nfbnet.org/mailman/listinfo/nfb-science_nfbnet.org
> To unsubscribe, change your list options or get your account info for NFB-Science:
> http://nfbnet.org/mailman/options/nfb-science_nfbnet.org/ngrice5456%40aol.com
>
> _______________________________________________
> NFB-Science mailing list
> NFB-Science at nfbnet.org
> http://nfbnet.org/mailman/listinfo/nfb-science_nfbnet.org
> To unsubscribe, change your list options or get your account info for NFB-Science:
> http://nfbnet.org/mailman/options/nfb-science_nfbnet.org/redwing731%40gmail.com
> _______________________________________________
> NFB-Science mailing list
> NFB-Science at nfbnet.org
> http://nfbnet.org/mailman/listinfo/nfb-science_nfbnet.org
> To unsubscribe, change your list options or get your account info for NFB-Science:
> http://nfbnet.org/mailman/options/nfb-science_nfbnet.org/blackbyrdfly%40gmail.com

_______________________________________________
NFB-Science mailing list
NFB-Science at nfbnet.org
http://nfbnet.org/mailman/listinfo/nfb-science_nfbnet.org
To unsubscribe, change your list options or get your account info for NFB-Science:
http://nfbnet.org/mailman/options/nfb-science_nfbnet.org/lhwayland%40sbcglobal.net

```