PS 10.3-10.5 Review
Across
- 3. this type of friction affects sliding objects already in motion
- 4. simple machines provide________main forms of assistance
- 6. the force of gravity is__________proportional to an the distance between two objects
- 7. ratio of work output to work input
- 11. under ideal conditions, the work put into a machine is ____to the work received from the machine
- 14. the scientist who formulated the law of gravitation
- 16. the machine modifies the input into its_____
- 19. examples of this simple machine are steering wheels, doorknobs, screwdrivers
- 21. this simple machine resembles an inclined plane wrapped around a rod; as it is turned, it applies force along its axis
Down
- 1. the transfer of energy from one object to another by a force
- 2. the force of gravity is______proportional to an object’s mass
- 5. power is inversely related to _____
- 6. this simple machine is a sloping surface that allows an object to be raised without lifting it straight up
- 8. the resistance arising to an object’s motion through a fluid or across a surface
- 9. this is a special form of inclined plane that modifies the applied force and directs it to the side
- 10. devices for doing work
- 12. this type of friction affects stationary objects
- 13. SI unit for work
- 15. the rate of doing work; work per unit time
- 17. this simple machine consists of a wheel over which a rope or cable passes
- 18. the force applied to a machine
- 19. SI unit for power
- 20. simple machine that consists of a rigid bar or beam resting upon a pivot