Watch the following video and answer the questions below. Stop the video at time – 5:00
1. “Without friction it would be ______________ anything”.
2. Friction can be defined as _______.
3. What is kinetic friction?
4. Why do rougher materials experience a greater frictional force?
5. What are the two main factors that affect the strength of kinetic friction?
6. What are TWO differences between static friction and kinetic friction?