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Questions and Answers
What type of friction can be illustrated by rubbing pieces of wood together to start a fire?
What type of friction can be illustrated by rubbing pieces of wood together to start a fire?
- Fluid friction
- Lubricated friction
- Dry friction (correct)
- Skin friction
What consequence of friction may lead to performance degradation or damage to components?
What consequence of friction may lead to performance degradation or damage to components?
- Thermal energy conversion
- Path dependence
- Wear (correct)
- Inter-surface adhesion
Which type of friction arises from a combination of inter-surface adhesion, surface roughness, surface deformation, and surface contamination?
Which type of friction arises from a combination of inter-surface adhesion, surface roughness, surface deformation, and surface contamination?
- Internal friction
- Dry friction (correct)
- Lubricated friction
- Fluid friction
What type of force is friction in terms of energy conservation?
What type of force is friction in terms of energy conservation?
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When motion with friction occurs, what is kinetic energy converted to?
When motion with friction occurs, what is kinetic energy converted to?
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