Mechanical Advantage – Quiz Questions

pp. 434 - 437

1. Define mechanical advantage.
   
   
2. Can an inclined plane have a mechanical advantage of less than one? Why or why not?
   
   
3. What is the mechanical advantage of a single fixed pulley?
   
   
4. What is the mechanical advantage of a pulley system with 4 supporting strands?
   
   
5. What is the mechanical advantage of a single MOVEABLE pulley?
   
   
6. In many of our labs we used a Force Produced and Force Applied to derive Mechanical Advantage. What is the formula?
   
   
7. Is it any advantage to use a machine that has a mechanical advantage of less than one?
   
   
8. A ramp at ANY ANGLE must have a mechanical advantage greater than what?
   
   
9. You have access to a short, steep ramp and a long, gradual ramp. Obviously, they require different amounts of effort to move a heavy object up each ramp. Compare the WORK done by the two ramp systems.
   
   
10. In our levers lab it was suggested that it is possible to lift a car with your little finger. Explain the lever system that would make this possible.