1. Machines, Machines, Machines

2. When a force moves an object in the direction you are pushing or pulling that object Work

3. Since work involves transferring energy this is the unit for work Joule

4. Work divided by time power

5. The unit describing power watt

6. Something that changes the direction the force goes or overcomes force machine

7. The work you do on a machine – like pushing a lawnmower Work input

8. The work the machine does – like cutting the grass Work output

9. How many times the machine multiplies force Output force/Input force Mechanical advantage

10. How much work you get out of a machine compared to what you put in it. Work output/ Work Input Mechanical Efficiency

11. Fixed point on a lever – can be in different positions depending on the class of lever Fulcrum

12. A bar rotating around a fixed point – like a teeter-totter lever

13. A wheel that a rope goes over pulley

14. Using a fixed pulley and a moveable pulley together Block and Tackle

15. Two circular objects of different sizes Wheel and Axle

16. A straight, slanted surface like a ramp Inclined Plane

17. Two inclined planes that move – like a scissors Wedge

18. An inclined plane (flat slanted surface) wrapped around a cylinder Screw

19. A machine made up of two or more simple machines Compound Machine

20. A ll machines are made from these – lever, screw, pulley, wedge, inclined plane, and wheel and axle. Simple Machine