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Simple Machines
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Mazzie Fraser
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Lignende mindmaps
Mindmap-oversigt
Simple Machines
af
Mazzie Fraser
1. 1st Class Levers
1.1. A lever in which the fulcrum is positioned between the load and the effort.
1.2. -scissors
1.3. -staple remover
2. 2nd Class Levers
2.1. A lever in which the load lies between the fulcrum and effort.
2.2. -wheel borrow
2.3. -bottle opener
3. 3rd Class Levers
3.1. A lever in which the effort is placed between the fulcrum and the load.
3.2. -a broom
3.3. -a fishing pole
4. Incline Planes
4.1. A slanted surface along with a force moves and object to a different elevation.
4.2. -a slide
4.3. -a ramp
5. Wedge
5.1. A V-shaped object whose sides are two inclined planes sloped toward each other.
5.2. -an axe
5.3. -girl shoes (wedges)
6. Screw
6.1. An inclined plane wrapped around a cylinder.
6.2. -a cap to a jar of peanut butter
6.3. -a light bulb
7. Wheel and Axle
7.1. A simple machine that consists of two rigidly attached disks or cylinders, each one with a different radius.
7.2. -a ferris wheel
7.3. -a bike
8. Pulley
8.1. A simple machine that consists of a rope that fits into a groove in a wheel.
8.2. -a flag pole pulley
8.3. -a crane
9. Work
9.1. The product of distance and force in the direction an object moves.
9.2. Formula: Work = Force x Distance
9.3. Unit: Joules (J)
9.4. -pushing a heavy shopping cart
9.5. -carrying a brief case
10. Power
10.1. The rate of doing work.
10.2. Formula: Power = Work / Time
10.3. Unit: Watts (W)
10.4. -a light bulb
10.5. -a person running
11. Mechanical Advantage
11.1. The number of times that a machine increases an input force.
11.2. Formula: MA = Output Force / Input Force
11.3. Formula: MA = Input Distance / Output Distance
11.4. Unit: no unit
11.5. -a wheel borrow carrying rocks
11.6. -a hammer pulling out a nail
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