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m,p,a, and e

meausrement, precision, accuracy, and error

QuestionAnswer
measurement to know quantity-means of communicating
unit basis to measurement-label for numbers
observation using 5 senses, take in
direct observation you did it, 5 senses
indirect observation you did it with help, equipment
precision repeatable data-precise, comes from people
accuracy how close you are to the right answer, comes from equipment
+ with _ under it 5% means... 100 mL could be really anywhere from 95 mL to 105mL
errors mistakes-people, equipment, environment
systemic errors ~from people or equipment~ errors with a system -calibration -observation -can be controlled or minimized ex)something is wrong with the equipment.
random errors ~from envrionment~ unpredictable/cannot be controlled or fixed ex) what the air pressure was like that day
volume the amount of space something occupies
density property of matter-how much stuff something has packed into it
what is the density of water and when does something float? 1g/mL and if an object has a less density that water, it floats
quantitative numbers
qualititative no numbers
Created by: c.s.g.6
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