The weight of an object is not constant; it can change. True or False?

True. The weight of an object can change depending on the strength of the gravitational field in which it is located. Weight is a measure of the force exerted on a mass by gravity. It is calculated by the formula:

\[ \text{Weight} = \text{Mass} \times \text{Gravitational Acceleration} \]

Since the gravitational acceleration can vary from one place to another (e.g., it's different on the Earth, the Moon, or in space), the weight of an object would change as a result. For example, an object would weigh less on the Moon than on Earth because the Moon's gravitational force is weaker than the Earth's.

Extra: It's important to distinguish between weight and mass as these concepts are often confused. Mass is a measure of the amount of matter in an object and does not change regardless of location. Mass is measured in kilograms (kg) in the International System of Units (SI). Weight, on the other hand, measures the force on an object due to gravity and is measured in newtons (N) in the SI system.

This distinction means that while the mass of an object remains constant across different environments, its weight varies with the local gravity. For example, astronauts in orbit around Earth experience weightlessness because they are in a state of continuous freefall; however, their mass remains the same as it was on Earth. This concept can sometimes be counterintuitive because in everyday life on the Earth's surface, our experience of weight and mass is usually the same, as we are in a constant gravitational field.