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Levers and Pulleys W-K
Terms in this set (18)
A class 1 lever has the __ in the middle.
A class 2 lever has the __ in the middle.
A class 3 lever has the __ in the middle.
A movable pulley gives you a __ advantage.
A single-fixed pulley gives you a __ advantage.
If you use a movable pulley to gain a mechanical advantage, what is the price?
If you have a load that weighs 40N, how many newtons will it take to lift it if you use a movable pulley?
What kind of lever is a crowbar?
What kind of lever is a pair of tweezers?
What kind of lever is a wheelbarrow?
The fixed point around which a lever rotates.
The force needed to overcome/lift the load.
The resistance to be overcome by the simple machine.
The wedge, the pulley, the lever, the inclined plane, the wheel and axle, and the screw are all examples of __.
A measure of force used on a spring scale.
60N load + 4 ropes supporting the load = how much effort (in Newtons) do you need in order to raise the load with a pulley?
A combination of at least one fixed and at least one movable pulley gives you what advantages?
Directional and Mechanical
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