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Work and machines

Name:                                         Date:
Across
The force air exerts onto a moving object
Unit of force
Where it pivots
Another word for output force
used to move objects and can change the direction of force
the ratio of the force produced by a machine to the force applied to it, used in assessing the performance of a machine
Can make work easier but not reduce amount
2 or more simple machines working together
Rexistence/ load
A machine can make the work easier by increasing the distance and decreasing the amount of force used
The universal force that attracts objects to each other
Used to split objects
Wedge with inclined plane wrappped around it
Output force
The push or pull exerted on an object
Down
Effort
Two objects act on the same object in opposite directions
the ratio of the useful work performed by a machine
Ramp used to increase distance and decrease force
A state where opposing forces are balanced
Forces act on a object at rest, but it does not move
Forces that cause a change of motion of an object
Unit for work
Reduces friction
The quantity of motion of a moving body(product of mass and velocity)
How hard it is to change an object's motion
The force that opposes motion of two objects in contact
Stick with a fulcrum that changes directions and force to lift things
Wheels with teeth
Done on an object when a force is exerted that causes the object to move