DCS # | DEMONSTRATION | REFERENCE | ABSTRACT |
---|---|---|---|

5H20.00 | Forces on Magnets | ||

5H20.10 | magnets on a pivot | PIRA 200 | One magnet is placed on a pivot, the other is used to attract or repel the first. |

5H20.10 | magnets on a pivot | 5H20.10 | A magnet is placed in a cradle. A second magnet is used to attract and repel the first. |

5H20.10 | interaction between bar magnets | Er-2 | Bar magnets on pivots. |

5H20.10 | magnetic attraction/repulsion | Disc 19-01 | One magnet is placed on a pivot, the other is used to attract or repel the first. |

5H20.15 | snap the lines of force | PIRA 1000 | |

5H20.15 | snap the lines of force | 5H20.15 | |

5H20.20 | levitation magnets | PIRA 500 | |

5H20.20 | levitation magnets | 5H20.20 | Two ring magnets are placed on an upright test tube with like poles facing. |

5H20.20 | levitation of magnetic discs | Er-11 | Two disc magnets are suspended with like poles facing on an inverted test tube. |

5H20.21 | magnetic suspension | Er-10 | Two notched bar magnets are held with like poles facing. |

5H20.23 | centrally levitating magnets | PIRA 1000 | |

5H20.24 | linearly levitating magnets | PIRA 1000 | |

5H20.30 | inverse square law | PIRA 1000 | |

5H20.30 | inverse square law | 5H20.30 | Same as AJP 31(1),60. |

5H20.30 | inverse square law - magnetism | AJP 41(12),1332 | A balance to measure the repulsion of two bar magnets. See AJP 31(1),60. |

5H20.30 | inverse square law - magnetism | AJP 31(1),60 | A balance is made out of a meter stick with a magnet on one end facing the pole of another similar magnet. Adjust the distance between the magnets and slide the counterbalance along the meter stick until equilibrium is reached. |

5H20.30 | magnetic balance | E-86 | Use a bar magnet brought near a second bar magnet counterweighted and on a knife edge to roughly verify the inverse square law. |

5H20.33 | hanging magnets | E-87 | Hang two magnets horizontally and parallel. Use the inverse square law to compute the pole strength from the length of the suspension, the saturation, and mass of the magnets. |

5H20.35 | inverse square law balance | PIRA 1000 | |

5H20.35 | inverse square law | 5H20.35 | |

5H20.35 | inverse squared power - magnetism | AJP 51(11),1023 | Three simple variations of magnets levitating in a glass tube are used to show a force varying with the inverse of the distance squared. |

5H20.40 | inverse fourth law - dipoles | PIRA 1000 | |

5H20.40 | inverse fourth power - magnetism | 32-1.2 | Equipment shows the force between two dipoles varies as the inverse fourth power of the separation. Pictures. |

5H20.50 | inverse seventh law - magnet/iron | PIRA 1000 | |

5H20.50 | inverse seventh power - magnetism | 32-1.3 | Apparatus to show the force between a magnet and a piece of soft iron varies with the inverse seventh of the separation. Diagram, Picture. |

Reference | Description |
---|---|

M-1 | Sutton |

Ma-1 | Freier & Anderson |

M-1d | Hilton |

8-2.8 | Meiners |

1A12.01 | University of Minnesota Handbook |

AJP 52(1),85 | American Journal of Physics |

TPT 15(5),300 | The Physics Teacher |

Disc 01-01 | The Video Encyclopedia of Physics Demonstrations |

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