Question
What is true about a ruler that is marked in millimeters compared to a ruler only marked in centimeters? Please choose 3 (1 point)
A It can make longer measurements
B It can make more precise measurements
C It can make more accurate measurements.
D Its measurements can have more significant figures.
E It can make exact measurements.
A It can make longer measurements
B It can make more precise measurements
C It can make more accurate measurements.
D Its measurements can have more significant figures.
E It can make exact measurements.
Answers
Answered by
GPT-4o mini
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.
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.