7 Written Questions

1. 3 types of levers
2. wheel with teeth along its circumference
3. resistence arm, fulcrum, effort arm
4. combination of two or more simple machines
5. on joule per second
6. fulcrum, effort arm, resistence arm
7. inclined plane wrapped in a spiral around a cylindrical post

6 Multiple Choice Questions

1. 3 types of inclined planes
   1. second class lever -
   2. inclined plane
   3. third class lever -
   4. inclined plane, screw, wedge
2. grooved wheel with a rope or chain running along the groove
   1. pulley
   2. screw
   3. wedge
   4. power
3. inclined plane with one or two sloping sides
   1. gear
   2. watt
   3. wedge
   4. lever
4. measure of how much of the work put into a machine is changed to useful work put out by a machine
   1. effort arm
   2. efficiency
   3. pulley
   4. screw
5. the fixed point of a lever
   1. fulcrum
   2. pulley
   3. screw
   4. lever
6. simple machine consisting of two wheels of different sizes that rotate together
   1. resistance arm
   2. inclined plane
   3. wedge
   4. wheel and axle

6 True/False Questions

1. lever → bar that is free to pivot or turn about a fixed point

   True        False

2. second class lever - → fulcrum, resistence arm, effort arm

   True        False

3. effort arm → the part of the lever on which the effort force is applied

   True        False

4. inclined plane → simple machine consisting of two wheels of different sizes that rotate together

   True        False

5. power → rate at which work is done

   True        False

6. resistance arm → part of the lever that exerts the resistance force

   True        False