Coefficient of Friction Lab
Materials:
Wax paper
Food wrap
Butcher paper
Spring scale
Foil
String
Textbook
Procedure:
1.
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6.
Tape down which ever “surface” your book will be sitting on.
Place book 5 inches from the edge of the table.
Attach string to book
Attach string to spring scale
Pull spring until the book just starts to move.
Record the number of Newtons on data sheet.
Surface
Bare Table
Foil
Plastic Wrap
Wax Paper
Butcher Paper
Mass of book
in Kg
Fn
Fn=mass x g
Fs
Force to start object
moving
Coef. Of Friction
Coif Friction = Fs / Fn