What tool can you use to determine the volume of a large block of wood?

The best tool for determining the volume of a large block of wood is a metric ruler. To find the volume of a rectangular block, you can measure its length, width, and height. Once you have these measurements, volume can be calculated using the formula: volume = length × width × height. A metric ruler provides the precision needed to accurately measure these dimensions in centimeters or meters, which are standard units for calculating volume in metric measurements.

Other tools mentioned serve different purposes. A switch ruler is not a standard tool for measuring volume. A digital scale measures weight, which can be used to find volume indirectly if you know the density of the wood, but it is not a direct measurement. A protractor is designed for measuring angles and would not be applicable for finding the volume of a three-dimensional object like a block of wood. Hence, the metric ruler is the appropriate tool for this task.