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# Chapter 10 Motion

### motion vocabulary

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

Force of attraction between objects. | Gravity |

Anything that is shot or thrown through the air. | projectile |

A push or a pull. | force |

Projectiles follow a ______ path. | curved |

Does mass remain constant everywhere in the universe? | yes |

Unit for force. | Newton |

Forces that are equal is size but opposite in direction are ..... | balanced forces |

Force created by two objects sliding past each other. | Friction |

A 15 newton forces to the right acts on a 10 newton force to the left. Which direction does the object move? | right |

What kind of friction is air resistance? | fluid friction |

Measure of the force of gravity on an object. | weight |

When the only directional force acting on an object is gravity, the object is experiencing.. | freefall |

All objects near the earth's surface _______ at 9.8 m/s/s. | accelerate |

What is the fastest speed a falling object can reach? | terminal velocity |

What is the net force of a 10 N force to the left acting on a 10 N force acting to the right? | zero |

Which law states that an object stays in motion until an unbalanced force acts upon it? | Newton's 1st law |

Which law states that force equals mass x acceleration? | Newton's 2nd law |

Tendency of an object to resist a change in motion. | inertia |

The greater the _____, the greater the inertia. | mass |

Which law states that for every action, there is an equal and opposite reaction force. | Newton's 3rd law |

Gravity is affected by mass and _______. | distance |

The product of mass x velocity is ..... | momentum |

An object that orbits another object is called a(n).... | satellite |

Force that makes an object move in a circular path. | centripetal |