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# Momentum

Question | Answer |
---|---|

what is the conservation of energy? | energy can neither be created or destroyed, only its form can be changed |

what is the definition of work done? | work done = force ( in the direction of movement) x distance moved |

what is the unit of energy? | the joule |

What is the definition of power? | energy converted / time taken |

what is gravitational potential energy? | energy due to an objects position. |

Momentum is defined as? | mass x velocity |

what is the unit of power? | watts or joule / sec |

power = force x ? | velocity |

state Newton's first law | in class. |

how is Ke calculated? | 1/2 x mass x (velocity) 2 |

State Newton's second law | in class |

what are the units for momentum | Ns or kg m/s |

what is the definition of one newton? | in class. |

what is the KE of an object | energy due to the objects motion. |

mathematically, what is Newton's second law? | f = m (dv / dt) |

what is the definition of impulse? | F x t = change in momentum. |

How can the change in momentum be found from the F vs t graph of an object? | the area under the graph. |

state Newton's 3rd law | in class |

Created by:
pvirdi