Question

• always use significant figure rules. remember that these rules apply to all numbers that are measurements. 2 m is equivalent to how many mm (millimeters)?

○ 200 mm
○ 20 00 mm
○ 200 0 mm
○ 2000 mm

Explanation:

Step1: Recall unit conversion factor

We know that \(1\space m = 1000\space mm\). This is the conversion factor between meters and millimeters.

Step2: Convert 2 m to mm

To convert 2 meters to millimeters, we multiply the number of meters by the conversion factor. So, \(2\space m\times\frac{1000\space mm}{1\space m}\). The meters unit cancels out, and we get \(2\times1000 = 2000\space mm\). Now, considering significant figures, the original measurement is 2 m (which has 1 significant figure). But when we do the conversion, the conversion factor \(1000\space mm/m\) is an exact conversion (defined quantity), so the number of significant figures is determined by the original measurement. However, looking at the options, we need to present the answer with the correct conversion. The calculation gives us 2000 mm.

Answer:

2000 mm (corresponding to the option: 2000 mm)