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# Physics Midterm

### Physics Midterm Review

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

What is Physics? | is a branch of science that involes the study of the physical world. |

What is Dimensional Analysis? | the method of treating the units as algebraic quantities. |

What is the Scientific Method? | a method of observing, experimenting, and analyzing to answer questions about the natural world. |

What is Scientific Law? | a rule of nature that sums up related observations to describe patterns in nature. |

What is Centripetal Force? | the net force toward the center of the circle. |

*What are Kepler's Laws?* | 1. states that a Planet, or any other object orbits around the Sun2. states that there is an imaginary line from the Sun to all the Planets.3. states that the square of the period of the orbit must be equal to the cube of the orbit's semi-major axis. |

*What are Newton's Laws* | 1. states that every object will remain at rest 2. states the velocity of an object changes when it is subjected to an external force.F = m * a 3. states that for every action (force) in nature there is an equal and opposite reaction. |