51 | Mechanical efficiency (given measured performance,ideal performance) | |

52 | Mechanical efficiency for lifting object (given weight,heigth,force,distance) | |

53 | Mechanical efficiency for block and tackle (given load weight,force,number of rope pulley) | |

54 | Mechanical efficiency for block and tackle (given weight of material,weight of segments) | |

55 | Mechanical efficiency for block and tackle (given friction,length,force,distance) | |

56 | Hooke's law | |

57 | Displacement of the spring (given force and constant) | |

58 | Elastic potential energy (potential energy stored in a spring ) | |

59 | Potential energy | |

60 | Potential energy (mass, gravity, and altitude) | |

61 | Mass (given gravity potential energy , altitude and gravity acceleration) | |

62 | Altitude of the object (given gravity potential energy ,mass and gravity acceleration). | |

63 | Gravitational potential energy general formula (given mass and distance) | |

64 | Potential energy (general formular) | |

65 | Tensile stress | |

66 | Work done by a torque | |

67 | Work done by a torque (given torque and angle of rotation) | |

68 | Angle of rotation (given work and Torque) | |

69 | Torque (given lever arm, force and angle) | |

70 | Angle of the rotation (given force and Torque) | |

71 | Force (given level arm, angle and torque) | |

72 | Length of the lever arm (given force,angle and torque) | |

73 | Torque (give work and angle of rotation) | |

74 | Torque (given force directed perpendicularly to the position of particle and arm length) | |

75 | Distance from the axis of rotation to the particle (given Torque and force) | |