Are all physical properties constants?
Which option provides a correct answer and example for the question?
Physical properties are not always constants. For example, the density of two different sizes of the same metal would not be the same.
Physical properties are always constants. For example, all physical properties remain the same regardless of state of matter.
Physical properties are not always constants. For example, the melting point of two different sizes of the same metal would not be the same.
Physical properties are not always constants. For example, the mass of two different sizes of the same metal would not have the same mass.
The correct answer for the question "Are all physical properties constants?" is:
Physical properties are not always constants. For example, the density of two different sizes of the same metal would not be the same.
To arrive at this answer, we can understand that physical properties are characteristics of matter that can be measured or observed, such as density, mass, melting point, etc. These properties can vary depending on the conditions or circumstances.
To address the question, we need to consider whether physical properties remain constant or if they can change. The options provided give possible answers, and by evaluating them, we can determine the correct response.
Option 1 states that physical properties are always constants, which is not accurate. Physical properties can change depending on factors like temperature, pressure, or the specific characteristics of the substance itself.
Option 2 provides a more accurate statement. It correctly states that physical properties are not always constants. For example, the melting point of two different sizes of the same metal would not be the same. This demonstrates that physical properties can vary based on different factors.
Option 3 is incorrect because it states that physical properties are always constants. As explained earlier, this is not true.
Option 4 provides another accurate answer. It states that the mass of two different sizes of the same metal would not have the same mass, indicating that physical properties can differ depending on the size or quantity of the substance.
Thus, the correct answer is option 2, which states that physical properties are not always constants, using the example of how the density of two different sizes of the same metal can vary.