Week1 Ilab1

Name: ___Keith Greer_______________ Date: _____1/09/16______ (20 points as marked)

1. (1 point) What is the precision of the caliper?

The precision is 0.0001

2. (2 points) Record your measurements of the diameter of the quarter in the table below.

| diameter (d) | radius (r) |

measurement #1 | 0.951 | |

measurement #2 | 0.949 | |

measurement #3 | 0.951 | |

measurement #4 | 0.9485 | |

measurement #5 | 0.951 | |

average | 0.9501 | 0.47505 |

3. (2 points) Record your measurements of the thickness of the quarter in the table below.

| thickness (t) |

measurement #1 | 0.0625 |

measurement #2 | 0.0631 |

measurement #3 | 0.0619 |

measurement #4 | 0.0631 |

measurement #5 | 0.0625 |

average | 0.06262 |

4. (0 points) Which coin did you choose for the next part of the experiment?

A nickel.

5. (2 points) Record your measurements of the diameter of the coin in the table below.

| diameter (d) | radius (r) |

measurement #1 | 0.835 | |

measurement #2 | 0.836 | |

measurement #3 | 0.835 | |

measurement #4 | 0.836 | |

measurement #5 | 0.836 | |

average | 0.8356 | 0.4178 |

6. (2 points) Record your measurements of the thickness of the coin in the table below.

| thickness(t) |

measurement #1 | 0.0781 |

measurement #2 | 0.0781 |

measurement #3 | 0.0782 |

measurement #4 | 0.0782 |

measurement #5 | 0.0781 |

average | 0.07814 |

7. (1 point) Why is it a good idea to average your measurements?

It equally weights the numbers to find middle range.

8. (1 point) What is the precision of your diameter measurements?

The precision is a 0.0001.

9. (1 point) What is the precision of your thickness measurements?

The precision is a 0.00001.

10. (3 points) Use the averages of your measurements and the coin masses listed in the table in the introduction, and calculate the volume and density for the quarter and your coin. Record your results in the table below. Be sure to use the appropriate number of significant...