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# Math Skills for Sci

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

What is the SI unit for mass | Kilograms |

What is the SI unit for volume | liter |

What is the SI unit for amount of a substance? | mole |

What is the SI unit for intensity of light? | Candella |

What is the SI unit for length | meter |

What is the SI unit for current of electricity | ampere |

What is the SI unit for temperature | Kelvin |

What is the SI unit for time | seconds |

Which type of measurement system does most of the world use? | SI System |

SI system is based on powers of what? | 10 |

What are the 6 prefixes that we commonly use in science class for the SI system? | k-kilo, h-hect, da-deca, d-deci, c-centi, m-milli, |

What is the pneumonic device to remember the metric prefixies? | King Hector Died Unexpectedly Drinking Chocolate Milk |

What is the English system based off of? | The sizes of living things. |

Are the metric system and the SI system the same thing? | No metric system is part of the SI system |

How many grams are in a kilogram | 1000 g in a kg |

How many milliliters are in a liter? | 1000 mL in a L |

Convert 25g to kg | .025kg |

Convert 5L to ml | 5000ml |

Convert 2dL to mL | 200 mL |

Convert 3m to mm | 3000mm |

What rules are there using dimensional analysis? | Always write out your units. Same unit goes diagonal. Multiply the top and divide by the bottom. |

Use your conversion factor sheet and convert 55m into inches | 55m I 100cm I 1in = 2165 in 1m 2.54cm |

What is accuracy? | Getting close to a known value |

What is precision? | Getting a similar value repeatedly |

If arrows are clustered together but not on a bullseye, what would you call that in terms of accuracy and precision? | not accurate but precise |

If there are more significant figures, then the number is | more accurate |

Rules for significant figures | all non zeros zeros between numbers zeroes to the right of the decimal if something significant is to the left |

How many sig figs in this number 34.00 | 4 |

how many sig figs in this number 43000 | 2 |

How many sig figs in this number 0.0003 | 1 |

How many sig figs in this number 1.002 | 4 |

How many sig figs in this number 0.003200 | 4 |

How many sig figs in this number 1.0900 | 5 |

Why do we use scientific notation? | it allows you to work with numbers that are normally too big or too small, with less difficulty |

What would 3.4x10^5 look like? | 340000 |

What would 3.03x10^-3 look like? | .00303 |

What would 5.9x10^2 look like? | 590 |

Scientific notation always has one number to the left of the decimal | true |

negative exponents in scientific notation are given to numbers that are less than one | true |

positive exponents in scientific notation are given to numbers that are more than one | true |

Created by:
senecairishscience