Simple Machines

5. The distance from the tallest part of the ramp to the ground
6. Machines that have lots of components
9. The force made by the object we want to move--main part of a lever
10. ______ class lever - has the point of resistance in the middle
11. A simple machine that uses a wheel
12. It is a rigid bar that lets us exert force on a point of support and lift objects
13. When people are the main source of energy that makes a machine move
15. There are ______ classes of levers

1. The shape a ramp makes against the ground
2. A common example of a first class lever, found in the classroom
3. ______ class lever - has the force in the middle
4. A ramp that lets us raise and lower objects
7. The distance from the beginning to the end of a ramp
8. In a first class lever, the point of support is ______ the force and the resistance
10. The point of ______ is a main part of a lever
14. The center part of a pulley