A | B |

Machine | A device, simple ot complicated that uses energy to perform a useful task or function. |

Energy | The ability to work |

Work | The result of force being exerted on an object and the object moving in the general direction of the force |

System | A complex machine made up of simpler working parts. Each of which may be made up of one or more simple machines. |

Subsystem | One of the working parts that make up a complex machine. |

Inclining plane | A type of simple machine, in its simplest form, a sloping ramp which reduces the effert force needed to move a load. |

Pulley | A type of simple machine, in its simplest form, a wheel with a groove along the edge to recieve a rope used either to reduce the Effort force needed to lift a load or to allow a load to go up . |

Effort force | The force that you exert |

Lever | A type of simple machine, in its simplest form, a striaght ridid bar that pivots on a falcrom. |

Wheel and Axel | a type of simple machine, in its simplest form a large wheel and a smaller wheel mounted onto a common axis so the the wheels can rotate. |

force advantage | the advantage that is provided by a machine when the efferot force is smaller than the force of gravity is on the load being moved. |

speed advantage: | a speed increase provided by a machine |

wedge | a simple machine, w kind of inclining plane consisiting of a V-shape type of material. |

screw | a type of simple machine, essentialy a inclining plane wrpped around a cylinder. |