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Stack #60626
| Question | Answer |
|---|---|
| projectile motion | the curved path an object follows as it is thrown or propelled near the surface of the earth |
| machine | a device that hepls do work |
| lever | a bar that pivots at a fixed point called a fulcrum |
| inclined plane | a ramp |
| air resistance | fluid friction that opposes motion of an object through air |
| compound machine | amachine made up of more than one simple machine |
| fulcrum | a bar that pivots at a fixed point on a lever |
| work input | the work you do to a machine |
| work output | the work a machine does |
| wheel and axle | a simple machine that consists of two wheels of different sizes |
| weight | measure of gravitational pull |