Ricardo wants to determine the length of a strip of zinc metal. What is the SI unit for length?

• A. liter
• B. second
• C. meter
• D. gram

Answer: (C)

Verified step by step guidance

1. Understand that the problem is asking for the SI unit of length, which is a fundamental physical quantity.
2. Recall that the International System of Units (SI) defines standard units for different physical quantities such as length, mass, time, and volume.
3. Identify the options given: liter, second, meter, and gram.
4. Recognize that 'liter' is a unit of volume, 'second' is a unit of time, 'gram' is a unit of mass, and 'meter' is the unit of length.
5. Conclude that the SI unit for length is the meter, which is symbolized as 'm' and is used worldwide to measure distances or lengths.