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# vocab 1

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

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

newtons first law | The first law is often called the law of inertia: objects at rest will remain at rest unless acted upon by a force or object, and an object moving at a constant speed will continue to move at that speed unless acted upon by a force or object. |

newtons second law | the acceleration of an object is dependent upon two variables - the net force acting upon the object and the mass of the object. the formula Force equals mass times acceleration. The formula is: Force = Mass x Acceleration |

newtons third law | 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.The math formula for speed is distance divided by time. |

Velocity | How fast an object is moving and in which direction. The formula of velocity used in physics is the same as the formula used for measuring average speed per direction. |

Elasticity | The tendency of solid materials to return to their original shape after being deformed. If the material is elastic, the object will return to its initial shape and size when these forces are removed. |

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 | wavelengths that you can see. the basic colors are: Red Orange Yellow Green Blue Indigo Violet |