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32 Cards in this Set
- Front
- Back
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Machine |
Any device that helps people do work |
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Load |
The mass of an object that is moved or lifted by a machine |
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Inclined plane |
A sloping surface or ramp |
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Fulcrum |
The fixed point on a lever |
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Work |
The use of force to move an object a certain distance when both the force and motion of the object are in the same direction |
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Wedge |
A simple machine with a thick and thin edge. It is used to split or pierce objects |
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Wheel and axle |
A wheel and axle is basically a lever which can be used continuously |
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Winch |
A wheel and axle with a rope attached |
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Gear train |
A group of two or more interlocking gears |
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Screw |
Is a combination of an inclined plane wrapped around the axle of a wheel and axle machine |
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Pulley |
A system of a wheel and axle with a grooves rim that can change the direction of a mechanical advantage of a rope pulled over it |
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Screw |
Is a combination of an inclined plane wrapped around the axle of a wheel and axle machine |
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Pulley |
A system of a wheel and axle with a grooves rim that can change the direction of a mechanical advantage of a rope pulled over it |
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Fixed pulley |
Attached to something and does not move |
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Movable pulley |
A type of pulley that will change the direction of the effort force pulley which is directly attached to the load and can move |
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Compound pulley |
Pulley system containing several pulleys |
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Block and tackle |
A compound pulley system containing fixed and movable pulleys |
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Sprockets |
Gears that connect through chains |
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Potential energy |
Energy that is stored in an objects position and shape |
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Kinetic energy |
The energy of motion |
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Mechanical energy |
An objects combined potential and kinetic energy |
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Law of conservation of energy |
In a closed system the amount of energy will never change no matter how it is transformed or transferred |
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Thermal energy |
Energy an object has from the motion of molecules (heat) |
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Chemical energy |
Energy stored in chemical bonds |
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Nuclear energy |
Energy stored in the nucleus of an atom. Released by converting mass (matter) into energy |
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Nuclear energy |
Energy stored in the nucleus of an atom. Released by converting mass (matter) into energy |
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Electromagnetic energy |
The energy of electric and magnetic interactions |
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Force |
A push or a pull |
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Gravity |
A force that works on any two objects in the universe |
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Friction |
A force that resists the motion of 2 surfaces that are in contact |
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Fluid |
A substance that can easily flow |
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Drag |
The force of the fluid particles exert on an object moving through them to slow the object down |
