Questiona | Answer |
---|---|

acceleration | This is the rate at which velocity changes. |

balanced forces | This is when forces are combined and there is a zero net force and no change in motion. |

motion | You can tell that this has occured because an object's position has changed compared to its reference point. |

net force | This is the resulting force when two or more forces are combined. |

speed | This is the distance covered in a period of time. |

unbalanced forces | When forces are combined, this results in a net force and causes a change in motion. |

reference point | This is an object that seems to stay still. |

velocity | This is the speed of an object in a given direction. |

action force | The force that is put on an object. |

gravity | This is the invisible attaction obetween two objects. Its strength depends on mass and distance. |

inertia | This is the tendency of objects to resist changes in motion. |

momentum | This is the measure of an object's motion based on mass and velocity. |

weight | This measures the force of gravity on an objcet. |

reaction force | This is the force that an object puts back onto the object putting a force on it. |

F = MA | This is the formula associtated with Newton's 2nd Law. |

Newton's Second Law | An example of this law is the harder you kick a soccer ball the farther it will go. |

Newton's Third Law | An example of this law is when you put a force on a table leg with your toe, the table leg puts a force back on your toe. |

Newton's First Law | The reason we wear seatbelts can be explained by using this law of motion. |

Flash Cards