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# Vocab

### Physics, Math & Formula Notes

Term | Definition |
---|---|

Gravity | The force which attracts objects towards one another, especially the force that makes things fall to the ground |

Isaac Newtonâ€™s 1st Law of Motion | The first law is often called the law of inertia |

2nd Law of Motion | The second law states that the acceleration of an object is dependent upon two variables.Acceleration is produced when a force acts on a mass. |

3rd Law of Motion | The third law states for every action, there is an equal and opposite reaction |

Acceleration | The rate at which the velocity of an object changes over time |

Force | Any interaction which tends to change the motion of an object. Force is a push or pull upon an object resulting from the object's interaction with another object. |

Speed | How fast an object is moving; usually measured by how much distance is covered in a certain amount of time. |

Velocity | How fast an object is moving and in which direction. Speed describes only how fast an object is moving, whereas velocity gives both how fast and in what direction the object is moving. |

Elasticity | The tendency of solid materials to return to their original shape after being deformed. |

Trajectory | The path described by a projectile flying or an object moving under the action of given forces. |

Terminal Velocity | The maximum velocity attainable, especially by a freely falling body, under given conditions. Also known as terminal speed. |

Sound Waves | The form that sound takes when it passes through air, water, etc. |

Light Waves | Spectrum of wavelengths that you can see. Each wavelength is sensed as a color. The basic colors in the spectrum are: (also colors of the rainbow) ROYGBIV |

Physics & Math Formula Sheet | This is a reference guide for the key formulas for math & physics calculations used in game development |

Speed | Speed can be thought of as the rate at which an object covers distance.The math formula for speed is distance divided by time. |

Velocity | Velocity is similar to speed, but it has direction.The formula of velocity used in physics is the same as the formula used for measuring average speed per direction. For example, velocity A is 10 m/s E, V is 20 m/s SE, and C is 15 m/s NE |

Acceleration | Acceleration is an expression of the change in the velocity of an object. |

Newton's Laws of Motion | Newton's Laws of Motions were invented by the famous English mathematician, physicist and astronomer Sir Isaac Newton. Sir Isaac Newton formulated three laws of motion which are still widely used today. |