click below
click below
Normal Size Small Size show me how
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 |