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# 09 science exam pt1

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

The outer layer of the earth is | Crust |

The ring of fire is in what ocean | Pacific Ocean |

The crust is broken into areas know as | Plates |

The Hawaiian island were formed by a | Hot Spot |

The SI unit of mass | Gram |

The SI unit of distance | Meter |

How many centimeters are in a kilometer | 100,000 |

How many meters are in a kilometer | 1,000 |

Time can be measured in | Seconds |

Acceleration can be measured in | Meters/Second squared |

Velocity is a measurement of speed and | Direction |

Acceleration is a change in | Speed |

What formula is used to find velocity | V = D / t |

What formula is used to measure acceleration | a = Vf – Vi / tf – ti |

Something moving at a constant velocity has | No acceleration |

When a car increases its velocity it has | Positive acceleration |

What is the velocity of a vehicle that traveled if it goes 128 km in ½ hour. | 256 km/hr |

What is the acceleration of a runner who starts from rest and accelerates up to 7.0 m/s in 4.0 seconds. | 1.8 m/s^2 |

What is the average acceleration of a car which is traveling 72 km/hr and accelerates to 128 km/hr in 4 seconds | 14 km/hr/s |

What is the average acceleration of a person who runs the 100m dash in 8.0 seconds | 12.5 m/s2 |

What is the average velocity of a car which traveled 78 km in 2 hrs | What is the average velocity of a car which traveled 78 km in 2 hrs |

Who discovered Plate tectonics? | Alfred Wegener |

If your acceleration is negative what is happening? | You are slowing down |

What can detect instant velocity? | Radar Gun |