Which unit is used to express volume in the example of a 2 cm by 1 cm by 4 cm box?

Which unit is used to express volume in the example of a 2 cm by 1 cm by 4 cm box?

• A. cm³
• B. mL
• C. L
• D. kg

Answer: (A)

Volume is found by multiplying the box’s dimensions. When those dimensions are in centimeters, the volume unit becomes cubic centimeters, written cm^3. For this box, 2 cm × 1 cm × 4 cm equals 8 cm^3. This is the natural way to express the volume because all measurements were given in centimeters, so the derived unit is cm^3. Remember that 1 cm^3 equals 1 mL, so the same quantity could be stated as 8 mL, but the example uses cm^3 to keep the units consistent with the dimensions. A liter is a larger unit more common for bigger volumes, and kilograms measure mass, not volume.

Volume is found by multiplying the box’s dimensions. When those dimensions are in centimeters, the volume unit becomes cubic centimeters, written cm^3. For this box, 2 cm × 1 cm × 4 cm equals 8 cm^3. This is the natural way to express the volume because all measurements were given in centimeters, so the derived unit is cm^3. Remember that 1 cm^3 equals 1 mL, so the same quantity could be stated as 8 mL, but the example uses cm^3 to keep the units consistent with the dimensions. A liter is a larger unit more common for bigger volumes, and kilograms measure mass, not volume.