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Mini-Quiz: Lubricated Coefficient of Sliding Friction

by Ron Kurtus

Take this Mini-Quiz to check your understanding of the lesson material.

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1. Why should environmental conditions be mentioned?

Because the environment is important to everyone

Grease gets thicker in colder temperatures, affecting the coefficient

Grease gets thicker in a humid climate, affecting the coefficient

2. Should the type and amount of grease be stated in listing coefficient?

No, because only surface roughness determines friction

No one is sure whether the type makes any difference

Yes, because lubrication varies greatly with material

3. When should you make your own friction measurements?

When the exact amount of friction needs to be known

When the normal force varies

You do not need to use anything but a table of values

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.

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Try to help others

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Resources and references

Ron Kurtus' Credentials

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Friction Resources - Extensive list

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Top-rated books on Friction Science

Top-rated books on Friction Experiments

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mini-quiz_friction_sliding_lubricated.htm

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Where are you now?

School for Champions

Friction topics

Mini-Quiz: Lubricated Coefficient of Sliding Friction

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Friction topics

• Friction Overview

Basics

• Uses of Friction
• Problems from Friction
• Causes of Friction
• Modes of Friction
• Types of Friction
• Standard Friction Equation

Sliding friction

• Sliding Friction
• Coefficient of Sliding Friction
• Normal Force in Sliding Friction
• Static Sliding Friction on an Incline
• External Force and Sliding Friction
• Reducing Sliding Friction
• Lubricated Sliding Friction

Rolling friction

• Rolling Friction or Resistance
• Normal Force in Rolling Friction
• Starting Rolling Motion
• Coefficient of Rolling Friction
• Rolling Friction and Automobile Tires
• Traction Friction of Tires

Fluid friction

• Fluid Friction
• Factors in Changing Fluid Friction

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