simple meachins

2. machine consisting of two or more simple machines operating together, as a wheelbarrow consisting of a lever, axle, and wheel.
6. force A lever is a simple machine that consists of a rigid bar supported at one point
11. variable a variable (often denoted by x ) whose variation does not depend on that of another.
12. machine any of the basic mechanical devices for applying a force
14. the principal or horizontal axis of a system of coordinates, points along which have a value of zero for all other coordinates.
15. activity involving mental or physical effort done in order to achieve a purpose or result.

1. the point on which a lever rests or is supported and on which it pivots.
3. variable a variable (often denoted by y ) whose value depends on that of another.
4. a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
5. strength or energy as an attribute of physical action or movement.
7. a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained.
8. the secondary or vertical axis of a system of coordinates, points along which have a value of zero for all other coordinates.
9. force must overcome in order to do work on an object via a simple machine.
10. advantage the ratio of the force produced by a machine to the force applied to it,
13. a statement of fact, deduced from observation, to the effect that a particular natural or scientific phenomenon always occurs if certain conditions are present.