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Chapter 14 Vocab
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Work : The product of force and distance
Joule : The SI unit of work
Power : The rate of doing work
Watt : The SI unit of power
Horsepower : Equals 746 watts
Machine : A device that changes a force
Input Force : The force you apply on a machine
Input Distance : The distance the input force acts through
Work Input : The work done by the input force acting through the input distance
Output Force :The force you exert on a machine
Output Distance : The distance the output force is exerted
Work Output : The output force multiplied by the output distance
Mechanical Advantage : The number of times that the machine increase an input force
Actual Mechanical Advantage : Equals the ratio of the output force to the input force
Ideal Mechanical Advantage : The mechanical advantage in absence of friction
Efficiency : The percentage of work input that becomes work output
Lever : A rigid bar that is free to move around a fixed point
Fulcrum : Te fixed point the bar moves around
Input Arm : The distance between the input force and the fulcrum
Output Arm : The distance between the output and the fulcrum
Wheel and Axle : A simple machine that consists of two disks or cylinders
Inclined Plane : A slanted surface along which a force moves an object to a different elevation
Wedge : A v-shaped object whose sides are two inclined planes sloped toward each other
Screw : An inclined plane wrapped around a cylinder
Pulley : A simple machine that consists of a rope that fits into a groove in a wheel
Compound Machine : A combination of 2 or more simple machines that operate together
Chapter 14 Vocab
Across:1. | The product of force and distance | 4. | A slanted surface along which a force moves an object to a different elevation | 7. | The SI unit of work | 9. | The rate of doing work | 12. | The distance between the output and the fulcrum | 13. | A rigid bar that is free to move around a fixed point | 15. | The SI unit of power | 17. | The number of times that the machine increase an input force | 18. | A device that changes a force | 20. | The percentage of work input that becomes work output | 22. | The distance the output force is exerted | 23. | Equals the ratio of the output force to the input force |
| | Down:1. | A simple machine that consists of two disks or cylinders | 2. | The output force multiplied by the output distance | 3. | The force you apply on a machine | 5. | The distance the input force acts through | 6. | Equals 746 watts | 8. | The force you exert on a machine | 10. | The work done by the input force acting through the input distance | 11. | A combination of 2 or more simple machines that operate together | 14. | Te fixed point the bar moves around | 15. | A v-shaped object whose sides are two inclined planes sloped toward each other | 16. | An inclined plane wrapped around a cylinder | 19. | The distance between the input force and the fulcrum | 21. | A simple machine that consists of a rope that fits into a groove in a wheel |
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© 2016
PuzzleFast.com, Noncommercial Use Only
Chapter 14 Vocab
Across:1. | The product of force and distance | 4. | A slanted surface along which a force moves an object to a different elevation | 7. | The SI unit of work | 9. | The rate of doing work | 12. | The distance between the output and the fulcrum | 13. | A rigid bar that is free to move around a fixed point | 15. | The SI unit of power | 17. | The number of times that the machine increase an input force | 18. | A device that changes a force | 20. | The percentage of work input that becomes work output | 22. | The distance the output force is exerted | 23. | Equals the ratio of the output force to the input force |
| | Down:1. | A simple machine that consists of two disks or cylinders | 2. | The output force multiplied by the output distance | 3. | The force you apply on a machine | 5. | The distance the input force acts through | 6. | Equals 746 watts | 8. | The force you exert on a machine | 10. | The work done by the input force acting through the input distance | 11. | A combination of 2 or more simple machines that operate together | 14. | Te fixed point the bar moves around | 15. | A v-shaped object whose sides are two inclined planes sloped toward each other | 16. | An inclined plane wrapped around a cylinder | 19. | The distance between the input force and the fulcrum | 21. | A simple machine that consists of a rope that fits into a groove in a wheel |
| |
© 2016
PuzzleFast.com, Noncommercial Use Only