Answer 9

If a column of data in a table contains time measurements in seconds, the column should be titled "t / s".

Question 10

If a temperature of 278.239 K has been measured and the estimated error in this reading is ±0.0514 K, the value with its associated error should be reported as -

T = 278.239 ± 0.0514 K

T = 278.239 ± 0.051 K

T = 2.78x10² ± 5.14x10^-2 K

T = 278.24 ± 0.05 K

T = 278.2 ± 0.1 K