The true statements about a ruler marked in millimeters compared to a ruler only marked in centimeters are:
B. It can make more precise measurements.
D. Its measurements can have more significant figures.
E. It can make exact measurements.
Explanation:
- B (Precision): A millimeter ruler can provide finer graduations compared to a centimeter ruler, allowing for more precise measurements.
- D (Significant Figures): Since millimeters allow for measurements to the nearest millimeter, they can often represent dimensions with more significant figures compared to rounding to the nearest centimeter.
- E (Exact Measurements): When using millimeters, the capability to measure in smaller increments means you can achieve more exact measurements than a ruler that measures only in centimeters.
A and C are not necessarily true:
- A does not apply directly because the length of the ruler does not change the maximum length that can be measured, just the precision of measurements within that length.
- C refers to accuracy, which is not inherently improved just by using smaller divisions; accuracy depends on other factors like calibration and measurement technique.
2 answers