Multiple Choice
In the International System of Units (SI), what is the base unit for length?
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1. Intro to General Chemistry
SI Units
Multiple Choice
Which is the longest distance?
A
2.50 m
B
25.0 cm
C
250 dm
D
0.00250 km
E
All are the same distance.
Verified step by step guidance1
Convert each distance to the same unit for comparison. Let's use meters (m) as the common unit.
Convert 25.0 cm to meters: \( 25.0 \text{ cm} = 0.25 \text{ m} \) because 1 cm = 0.01 m.
Convert 250 dm to meters: \( 250 \text{ dm} = 25.0 \text{ m} \) because 1 dm = 0.1 m.
Convert 0.00250 km to meters: \( 0.00250 \text{ km} = 2.50 \text{ m} \) because 1 km = 1000 m.
Compare all the converted distances in meters: 2.50 m, 0.25 m, 25.0 m, and 2.50 m. Identify the longest distance.
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