Lab 10 - Coefficient of Friction Material: Flat surface for ramp, Object with flat surface, scale, protractor. Procedure: Step 1: Record the material of the ramp Step 2: Record the material of the object that will be touching the surface of the ramp. Step 3: Use the scale to measure the mass of the object. Step 3: Place the ramp on a flat horizontal surface. Step 4: Place the object on one end and a protractor on the other end. Step 5: Slowly lift up the end of the ramp by the object, opposite the end with the protractor. Step 6: Lift until the object just begins to slide down the ramp. Step 7: Record the angle in the charge. Step 8: Perform the experiment again with three more different material inclines or objects. 2 3 4 7 8 F = mgsin tan(an gle) F/FN Material of the Angle Weight Object Material of the F = Ramp w=mg mgcos WEod Nastic 20 30L1962N °2.23N .1962 N 2.23N Wood Wood Cardbcard Wood Cordbacrd Plastic Summary: 1. Which friction did we measure? 2. As the angle increases how does the coefficient of friction change? 3. How does the answer to column seven (F/FN) compare to column eight (tan(angle))? According to the formula tan(angle), does the mass affect the coefficient of friction?

Lab 10 - Coefficient of Friction Material: Flat surface for ramp, Object with flat surface, scale, protractor. Procedure: Step 1: Record the material of the ramp Step 2: Record the material of the object that will be touching the surface of the ramp. Step 3: Use the scale to measure the mass of the object. Step 3: Place the ramp on a flat horizontal surface. Step 4: Place the object on one end and a protractor on the other end. Step 5: Slowly lift up the end of the ramp by the object, opposite the end with the protractor. Step 6: Lift until the object just begins to slide down the ramp. Step 7: Record the angle in the charge. Step 8: Perform the experiment again with three more different material inclines or objects. 2 3 4 7 8 F = mgsin tan(an gle) F/FN Material of the Angle Weight Object Material of the F = Ramp w=mg mgcos WEod Nastic 20 30L1962N °2.23N .1962 N 2.23N Wood Wood Cardbcard Wood Cordbacrd Plastic Summary: 1. Which friction did we measure? 2. As the angle increases how does the coefficient of friction change? 3. How does the answer to column seven (F/FN) compare to column eight (tan(angle))? According to the formula tan(angle), does the mass affect the coefficient of friction?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Concept explainers

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.

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Lab 10 - Coefficient of Friction
Material: Flat surface for ramp, Object with flat surface, scale, protractor.
Procedure:
Step 1: Record the material of the ramp
Step 2: Record the material of the object that will be touching the surface of the ramp.
Step 3: Use the scale to measure the mass of the object.
Step 3: Place the ramp on a flat horizontal surface.
Step 4: Place the object on one end and a protractor on the other end.
Step 5: Slowly lift up the end of the ramp by the object, opposite the end with the protractor.
Step 6: Lift until the object just begins to slide down the ramp.
Step 7: Record the angle in the charge.
Step 8: Perform the experiment again with three more different material inclines or objects.
3
4
6
7
8
F/FN
tan(an
gle)
Material of the
Material of the
Angle Weight
FN =
F =
Ramp
Object
w=mg
mgcos
mgsin
301962 N
flastic 20 2.23
/962N
2.23N
Wood
weod
wood
Cardbcarct
Woud
Cordbaard
Plastic
Summary:
1. Which friction did we measure?
2. As the angle increases how does the coefficient of friction change?
3.
How does the answer to column seven (F/FN) compare to column eight (tan(angle))?
4. According to the formula tan(angle), does the mass affect the coefficient of friction?

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