Okay the first one to answer the following questions gets best answer?
1. The unit used to express work is the______________
2.A______________ is an inclined plane that is wrapped in a spiral.
3.______________ is the rate at which work is done.
4.____________ occurs when a force causes an object to move in the direction of the force.
5. The work you do on a machine is called the work________
7.The mechanical____________ of a machine compares the input force with the output force.
9. When two kinds of pulleys are used together, the system is called a ______________
11. A__________________ is a device that helps make work easier by changing the size or direction of force.
12. A____________ is a double inclined plane that moves
13. Machines that are made up of two or more simple machines are called _____________ machines.
14. A_____________ is a simple machine consisting of two circular objects of different sizes
16. The work done by a machine is called the work __________
17. The fixed point at which a lever pivots is called a___
6. not there….
8. also not there
9. block and tackle?
14. Wheel and Axle
(hooray for bribing people to do homework for you!)
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