To determine the amount of space occupied by an object, a scientist would need to measure a specific property related to the three-dimensional space the object takes up. Let's examine the options and understand why one of them is the correct choice:
1. Mass: This is the measure of the amount of matter in an object, but it does not directly describe the space the object occupies.
2. Volume: This is the measure of the amount of space an object occupies. It is a three-dimensional measure, often calculated in cubic units (like cubic meters or liters). For example, if you have a box, its volume will tell you how much space it takes up.
3. Length: This describes a one-dimensional measure, usually indicating how long an object is from one end to the other. While it can be part of calculating volume (e.g., length × width × height), it does not alone describe the space occupied by an object.
4. None of the above: This option suggests that none of the provided answers are correct, but we know we are looking for a direct measure of the space occupied by an object.
Given these explanations, the correct answer is:
Volume
This answer is represented by the choice corresponding to "2."
