Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
12 Cards in this Set
- Front
- Back
|
Measurement |
Always involve comparison |
|
|
Comparison |
Always involve uncertainty |
|
|
Measurement and Uncertainty Measurement |
Are inherently uncertain, the last figure of a properly recorded measurement is just an estimate. |
|
|
Meniscus |
The curved interface between air and liquid |
|
|
In reading any scale, |
Your line of sight should be perpendicular to the scale to avoid parallex reading errors. |
|
|
A ------ will occur in the last place of a measurement if the measurement value fell exactly on a scale division. |
Zero |
|
|
Presicion is |
One way of checking error in measurement. It tells how close the several measurements are to the same value. |
|
|
Accuracy |
Tells how close a measurement to the true or accepted value. |
|
|
Quantitave measurement is |
Measuring quantity or putting value to something. It involves how much of something is present. |
|
|
Qualitative measurement means |
Without determining a value. It is concerned with finding out what is present in a given sample. |
|
|
Scientific Measurment physical quantities |
Length - meter Mass - kilograms Time - seconds Temperature - kelvin Amount of substance - mole Electric current - ampere Luminous intensity - candela |
|
|
Si prefixes |
Tera - 10^12 Giga - 10^9 Mega - 10^6 Kilo - 10^3 Deci - 10^-1 Centi - 10^-2 Milli - 10^-3 Micro - 10^-6 Nano - 10^-9 Peco - 10^-12 |
