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# Physics 30 Unit 1

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

Mass*Velocity (mv) | Momentum |

Mass*Acceleration (ma) | Force |

∆Velocity/∆Time (∆v/∆t) | Acceleration |

Mass*Gravity (mg) | Weight |

Force*∆Time (F*∆t) | Impulse |

Mass*Gravity*Height (mgh) | Potential energy |

1/2mv^2 | Kinetic energy |

Mass is measured in | Kilograms (kg) |

Velocity is measured in | Metres per second (m/s) |

Momentum is measured in | Kilogram metres per second (kg*m/s) |

Acceleration is measured in | Metres per second per second (m/s^2) |

Force is measured in | Newtons (N) |

Energy is measured in | Joules (J) |

Velocity is | The rate of change of an object's position |

Force is | An influence on an object's motion |

Momentum is | The product of the mass of an object and its velocity |

Newton's first law | An object's velocity does not change without an external force |

Newton's second law | The net force of an object is equal to the rate of change of its momentum |

How is impulse found in a net force-time graph | By calculating the area under the graph |

Elastic collisions are | Collisions where the objects in a system have the same initial and final kinetic energy values |

Inelastic collisions | Collisions where the objects in a system have different initial and final kinetic energy values |

Open systems are | Systems where outside forces act on the objects within |

Closed systems are | Systems where outside forces can not act on the objects within |

Impulse is | the product of the net force acting on an object during an interaction for a period of time |

Created by:
vahajuddin