Calculations and Significant Digits

Question 1

how exact can your results be?

Answer 1

your results can be no more exact than your worst piece of data

Question 2

what are sigdigs in a result from addition/subtraction?

Answer 2

you keep up to the least accurate place

Question 3

what are the sigdigs in a result from multiplication/division?

Answer 3

the number of sig digs in the term with the fewest number of sigdigs

Question 4

leading zeros are

Answer 4

never sig digs

Question 5

sandwiched zeros are

Answer 5

always sig digs

Question 6

trailing zeros are

Answer 6

not sig digs unless there is a decimal anywhere in the number

Question 7

how many sig digs do defined terms have

Answer 7

an infinite number of sig digs

Question 8

SD=

Answer 8

significant digit (sigdig)

Question 9

what makes up the significant digits of a measurement?

Answer 9

all of the “certain digits” and one estimated or “uncertain” digit

Question 10

you must always make 1 estimate past what you can measure by the marks on your tool, even if…

Answer 10

that estimate is zero

Question 11

density=

Answer 11

mass/volume