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Simple Machines
Simple Machines Vocab
Term | Definition |
---|---|
Wheel and Axle pt.1 | they rotate together |
Wheel and Axle pt.2 | a force is transferred from one to another |
Wheel and Axle pt.3 | Axle moves faster than the wheel making the work easier ( increases speed ) |
Simple Machine pt.1 | Wheel attached to an Axle. |
Simple Machine pt.2 | a simple device for changing the amount and/or force to move an object. |
Simple Machine Example pt.1 | lever |
Simple Machine Example pt.2 | inclined plane |
Simple Machine Example pt.3 | wedge |
Simple Machine Example pt.4 | pulley |
Simple Machine Example pt.5 | wheel and axle |
Simple Machine Example pt.6 | screw |
Lever definition | a simple machine made of a bar that pivots on a fixed support or fulcrum |
How does a lever work? | a force applied by pushing down one one end of the lever results in a force pushing up at the other end. |
What is a Pulley? | a pulled rope over a wheel |
What does a Pulley do? pt.1 | Changes the direction of force |
What does a Pulley do? pt.2 | increases the applies force making work easier. |
What is an Inclined Plane? | a flat surface raised at an angle like a ramp |
What does an Inclined Plane do? | used for lifting a heavy load instead of straight up. |
Extras facts about Inclined Planes pt.1 | the angle (steepness) determines effort needed to raise the weight. |
Extras facts about Inclined Planes pt.2 | the increased distance decreases the force required. |
What is a wedge made of? | made up of two Inclined Planes put together. the planes meet up and form a sharp edge. |
What is a Wedge used for? | used to push objects apart, or cut |
Extra facts about Wedges | the thinner the wedge the easier the work |
What is a Screw? | a spirally grooved solid cylinder |
What is a Screw made of? | an Inclined Plane wrapped around a cylinder |
Extra facts about Screws | the less distance between the threads the easier the work. |