Rules for combining % uncertainties

Question 1

how to find % uncertainty from absolute

Answer 1

(absolute uncertainty / value) x100

Question 2

what happens to the uncertainty when the value is squared

Answer 2

% uncertainty x 2

Question 3

what heppends to absolute uncertainty when x or / by a constant

Answer 3

x or / absolute uncertainty

Question 4

what happens to unceratainty when + or - measurements

Answer 4

add absolute uncertainties

Question 5

what happens to uncertainties when x or / by measurments

Answer 5

add percentage uncertainties