Question

1. which is the longest measurement? (3pts) 10 mmm 10 dm 10 cm 10 μm 10 nm

Explanation:

Step1: Convert all units to meters

$10\ \text{mm} = 10 \times 10^{-3}\ \text{m} = 10^{-2}\ \text{m}$
$10\ \text{dm} = 10 \times 10^{-1}\ \text{m} = 1\ \text{m}$
$10\ \text{cm} = 10 \times 10^{-2}\ \text{m} = 10^{-1}\ \text{m}$
$10\ \mu\text{m} = 10 \times 10^{-6}\ \text{m} = 10^{-5}\ \text{m}$
$10\ \text{nm} = 10 \times 10^{-9}\ \text{m} = 10^{-8}\ \text{m}$

Step2: Compare converted values

Compare $10^{-2}\ \text{m}$, $1\ \text{m}$, $10^{-1}\ \text{m}$, $10^{-5}\ \text{m}$, $10^{-8}\ \text{m}$: $1\ \text{m}$ is the largest.

Answer:

$\square$ 10 dm