Which of the following describes the differences between mass and weight?

Which of the following describes the differences between mass and weight?

• A. Mass can change; weight remains constant
• B. Mass remains constant; weight can change
• C. Both mass and weight are always constant
• D. Both mass and weight depend on gravity

Answer: (B)

Mass and weight are distinct concepts in physics, and understanding the difference between them is important. Mass is a measure of the amount of matter in an object, typically measured in kilograms or grams. It is an intrinsic property of the object, meaning it does not change regardless of the object's location. Therefore, mass remains constant no matter where you are in the universe. Weight, on the other hand, is the force exerted by gravity on an object’s mass. It is dependent on both the mass of the object and the acceleration due to gravity acting upon it, described by the equation: weight = mass × gravitational acceleration. Since the strength of gravity can vary based on location (for instance, weight is different on the Moon compared to Earth), weight can change while mass stays the same. This clearly illustrates why the statement that mass remains constant while weight can change is accurate and captures the essential differences between the two concepts.

Mass and weight are distinct concepts in physics, and understanding the difference between them is important. Mass is a measure of the amount of matter in an object, typically measured in kilograms or grams. It is an intrinsic property of the object, meaning it does not change regardless of the object's location. Therefore, mass remains constant no matter where you are in the universe.

Weight, on the other hand, is the force exerted by gravity on an object’s mass. It is dependent on both the mass of the object and the acceleration due to gravity acting upon it, described by the equation: weight = mass × gravitational acceleration. Since the strength of gravity can vary based on location (for instance, weight is different on the Moon compared to Earth), weight can change while mass stays the same.

This clearly illustrates why the statement that mass remains constant while weight can change is accurate and captures the essential differences between the two concepts.