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# Physical Sci. 8a-d

### force, mass, gel., accel., grav. force

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

The resistance of any physical object to any change in its state of motion | inertia |

What happens to an objects downward velocity as it falls to Earth? | Increases by 9.8 m/s for every second it falls |

Distance is equal to | Speed x Time |

Speed is equal to | Distance divided by Time |

Time is equal to | Distance divided by Speed |

When would an action and a reaction force not cancel themselves out? | When the forces act on two different objects |

What does Newton's second law of motion say about acceleration? | increases as mass decreases |

Without gravity, a dropped feather and rock will land??? | At the same time |

Newtons 3rd law states that for every action there is...? | An equal and opposite reaction |

Gravitational velocity increase every second by how much? | 9.8 m/s |

What is an objects velocity after falling for 10 seconds? | 98 m/s |

Which of Newton's laws explains Enertia? | First law |

A moving object not acted upon by an unbalanced force will...? | Remain in motion |

Why do bubbles rise? | They are less dense than water |

Newton's second law says that Force is equal to...? | Mass x Speed |

Force is measured in...? | Newtons |

What materials can flow to fit their container? | Gases and Liquids |

What is the speed of a plane that travels 5000 meters in 10 sec? | 500 m/s |

What type of friction is air resistance? | Fluid friction |

Newton's 1st law applies to what type of objects? | Moving and not moving |

The distance and direction from its original starting point | Displacement |

Density is equal to? | Mass divided by volume |

Volume is equal to? | Mass divided by Density |

Force is equal to? | Acceleration x Mass |

Created by:
FordLCHS