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# Math Skills for Sci

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