chem chapter 1 Flashcards
1
Q
What is the independent variable in an experiment?
A
it is the variable manipulated by the experimenter.
2
Q
What is the dependent variable?
A
It is the variable that is affected by the independent variable.
it is what you are trying to measure
3
Q
Accuracy
A
how close what you got is to the true value
4
Q
precision
A
your results being within the same range/area?
5
Q
3 Rs
A
reproducibility, reliability, repeatability
vcaa test this
6
Q
SIG FIG rules
A
- start counting when u come across a first digit that is not a zero
- when adding/subtracting answer is expressed in decimal places
- when multiplying/dividing answer is expressed in sig figs
- don’t round off too soon during your calculation