Final answer:
Bad measurements can result in significant errors, influenced by factors such as the measuring instrument's limitations, the measurer's skill, and the object's irregularities.
Step-by-step explanation:
Bad measurements can lead to significant consequences, from minor errors in everyday tasks to critical mistakes in scientific research, construction, and manufacturing.
Factors contributing to measurement uncertainty include limitations of the measuring device, such as the smallest division on a ruler being 0.1 in., the skill of the person making the measurement, which can be affected by bad eyesight, irregularities in the object being measured, and any other situation-specific factors. If there's a known reference value, it's also important to calculate the discrepancy to assess accuracy, in addition to precision.