Accuracy vs. Precision in the Value of g

Steps:

• The standard value of g is 9.81 m/s², varying slightly by location.
• The given value of 10 m/s² approximates this to one significant figure.
• Accuracy assesses closeness to the true value; 10 m/s² is within 2% of 9.81 m/s².
• Precision evaluates detail in measurement; 10 m/s² lacks decimal places for fine resolution.

Why A is correct:

• Accuracy measures how close a value is to the accepted true value; 10 m/s² is reasonably close to 9.81 m/s² for introductory physics, but lacks precision due to rounding to a whole number.

Why the others are wrong:

• B: The value lacks precision from limited significant figures.
• C: The value is accurate, as it closely approximates the true g.
• D: The value is accurate, despite lacking precision.

Final answer: A