Grade 9 Physics
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Grade 9 Science Experiment 4 - How does Friction Affect the Motion of Objects?



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  • 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)


Purpose: 


The purpose of this science fair project is to explore the physics of friction.  Friction is the force between two surfaces when they are rubbed together.  The science fair project will demonstrate the effects of friction in many instances including smooth and rough surfaces.


Following are properties of Friction:


  • Two smooth surfaces rubbed together causes little friction.
  • Two rough surfaces rubbed together causes great friction.
  • Less friction occurs when a liquid is between the two surfaces.
  • More friction occurs when two surfaces are forced against each other.

A common example of the effects of friction deal with the icy, snowy roads in the winter.  Icy, snowy roads can be very slippery because the liquid water doesn't cause much friction with a car tire.  Therefore, sand and salt are sprinkled on the roads.  The sand is a rougher substances that will cause more friction with car tires thus helping cars to avoid sliding off the road.


Hypothesis: 


Rubbing smooth surfaces together will yield less friction than rubbing rough surfaces together.


Variables:


1. Rough surface

2. Smooth surface

3. Oiled surface


Materials Needed:


  • Two bricks
  • Wooden board (2ft by 1ft or a size of your choosing)
  • Roller skates
  • Rubber bands
  • Oil
  • Glass panes
  • Sandpaper
  • Pencil
  • Paper

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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