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Chapter 7 SM
Question | Answer |
---|---|
What is effort? | The total force exerted on an object. |
The rate of doing work is | Power |
Work= | Force*Distance |
Simple Machines help us | complete tasks easier |
Work out ALWAYS | <Work in |
Efficiency= | Work out/work in*100 |
Load or Resistance= | thing you are moving |
Mechanical Advantage= | Measure of how the simple machine is multiplying the force |
The distance principle is | when simple machines compensate lack of power by applying the force over a larger area. |
AMA= | Actual Mechanical Advantage |
A lever is | a rigid bar that rests on a pivot point |
Rotational Equilibrium | When two forces on opposite sides of the fulcrum are equal |
Rotational Acceleration | When a force on one side of a fulcrum is stronger than the other, it pulls the lever into motion |
Axle= | a shaft that attaches to a wheel to function as one simple machine |
Gear= | modified form of wheel and axle |
Inclined Plane is like a | ramp |
To measure MA of pulley system, you can | count the pulleys |