Friction – Chapter 11 – Quiz Questions #5

pp. 382 - 387

1. Define FRICTION.
   
   
   
2. Define STATIC FRICTION.
   
   
   
3. Define KINETIC FRICTION.
   
   
   
4. Explain what is happening with STATIC FRICTION when you push on an object but do not move it.
   
   
   
5. Why is static friction usually greater than kinetic friction?
   
   
   
6. List the three types of KINETIC FRICTION and provide an example of each.
   
   
   
   
7. How can you reduce friction for each of the three types of kinetic friction?
   
   
   
   
8. How can you INCREASE static friction?
   
   
   
9. Describe three ways to reduce the force of friction between a heavy block and a table top.
   
   
   
10. What is the amount of static friction acting on a truck if the truck does not move and the force pulling the truck downhill is 2000N? (Note: answer must include number + direction of force).
    
    
    
11. How are balanced and unbalanced forces related to static and kinetic friction?
    
    
    
12. What happens when a net force acts upon an object?