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Questions and Answers
Which of the following is an example of static friction?
Which of the following is an example of static friction?
- Riding a bike on a smooth, dry pavement
- Sliding on a wet, slippery road
- Ice skating on a frozen lake
- Pushing a heavy box across a carpeted floor (correct)
What is the cause of kinetic friction?
What is the cause of kinetic friction?
- Surface roughness of the objects in contact (correct)
- The temperature of the environment
- The weight of the objects
- The color of the objects
Which factor affects the magnitude of frictional force between two surfaces?
Which factor affects the magnitude of frictional force between two surfaces?
- The speed of the moving object
- The color of the surfaces
- Normal force pressing the surfaces together (correct)
- The distance between the surfaces
