Grade 9 Physics
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Grade 9 Science Experiment 1 - Projectile Motion - Does a marble projectile fall straight down?



Buy ALL 5 Grade 9 Physics Projects for only $1.00:


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  • This is a downloadable e-book program.

  • You will NOT receive a physical package shipped to you in the mail.

  • Once you have made your payment via PayPal, select the option to return to this website

  • You will be returned to the download page where you can immediately download all 5 projects and get started right away.

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If anything goes wrong with your purchase, and you did not get to the download page, please contact me and I'll email you the download link (this could take up to 24 hours)


Purpose: 


The purpose of this science fair project is to demonstrate Galileo's theory that horizontal and vertical motions are independent.  Galileo's theory says that if you project a ball horizontally and drop another ball from the same height, both balls will strike the ground at the same time.  The force of gravity pulls the ball towards the center of the earth.  This pull causes the ball to travel in a curved path because it moves horizontally as it falls to the ground.


In this science fair project you will create an incline launching pad.  A marble will be rolled down this launching pad and will be projected horizontally.  Physics plays a role as you observe the effects of the pull of gravity and horizontal displacement. 


Hypothesis: 


Horizontal and vertical motion of an object are independent.


Variables:


1.  Height of the ruler launch pad

2.  Weight and size of the marbles


Materials Needed: 


  • Wooden Ruler with grooves
  • Marbles of varying weights and sizes
  • Nails
  • A Brick
  • 12 inch x 6 inch Wooden board
  • Plumb line with a plumb bob
  • Graph Paper
  • Pencil

Buy ALL 5 Grade 9 Physics Projects for only $1.00:


Read This Before Placing your Order:


  • This is a downloadable e-book program.

  • You will NOT receive a physical package shipped to you in the mail.

  • Once you have made your payment via PayPal, select the option to return to this website

  • You will be returned to the download page where you can immediately download all 5 projects and get started right away.

  • This program is NOT available in stores, so you can only access it through this website.


If anything goes wrong with your purchase, and you did not get to the download page, please contact me and I'll email you the download link (this could take up to 24 hours)



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