Across
- 2. purpose or task
- 5. a lever that has the fulcrum between the load and the point where the effort is exerted move the load
- 7. simple machine made up of a flat surface, such as a board, at an angle to another flat surface, such as ground or a table top; ramp
- 8. measurement of how well a machine or device uses energy; can be calculated by dividing mechanical advantage by speed or ratio or by dividing work output by work input
- 9. system that uses a liquid under pressure to move loads; device that uses liquids in a confined space to transfer forces; works according to Pascal's law
- 10. simple machine made up of two wheels of different diameters that turn together; a longer motion on the wheel produces a shorter but more powerful motion on the axle
- 12. a law that states: when pressure is applied to a liquid in a container, the pressure and it's force is transmitted equally and undiminished throughout the liquid; an enclosed liquid transmits pressure equally in all directions
- 13. measure of the amount of force applied to a given area; as an equation p=F/A, where p is ________, f is force, and a is area; measured in Pascals
- 14. systems in which simple machines all work together; parts of a _______ _______ that have just one function are called subsystems and often contain a simple machine
- 17. smaller group of parts within a complex machine that performs a specific function
- 18. simple machine made up of a rigid bar or plank that rotates on a fixed object called a pivot or fulcrum
- 20. measure of how the speed of the object is affected by a machine; calculated by dividing the input distance distance by the output distance
- 23. force applied to operate a machine
Down
- 1. force a machine applies to an object
- 3. force that opposes motion
- 4. amount by which a machine can multiply a force; calculated by dividing the output force by the input force
- 6. simple machine that looks like an inclined plane, but is forced into an object
- 11. special type of linkage for transferring the energy from the engine to the wheels in large vehicles such as cars and trucks
- 15. belt of chain to transport energy from an energy source to an object
- 16. tool or device made up of one basic machine
- 17. a group of parts within a complex machine that performs a specific function
- 19. simple machine made up of a wire, rope, or cable moving on a grooved wheel; may be made up of one or many wheels; can be fixed in place or movable
- 20. simple machine that consists of a cylinder with a groove cut in a spiral on the outside
- 21. the physical form of the device that makes it usable
- 22. pair of wheels with teeth that interlink; when they rotate together, one ____wheel transfers turning motion and force to the other