High School Unit of Gravitational Constant Explained

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The gravitational constant is defined in units of m³/(kg·s²) to facilitate calculations in gravitational equations, despite being a constant. Understanding its units is essential for accurate application in physics, as changing the units alters the numerical value of the constant. The dimensionality is determined by the specific equations it relates to, ensuring consistency in measurements. This allows for meaningful comparisons and calculations within gravitational contexts. Thus, defining a unit for a constant is crucial for its practical use in scientific equations.
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What does the unit of a constant mean?
We say the unit of gravitational costant is m3/kg.s2, but what does it mean? I mean, I think we define units when we need to measure a quantity and thereby compare it with other same kind of quantities. So what does it mean to define a unit for a constant, when it doesn't change?
 
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Mohamad said:
We say the unit of gravitational costant is m3/kg.s2, but what does it mean?
You can use different units, but then the numerical value of the constant also changes. You need to know the units, in order to use the numerical value correctly.

The dimensionality of a constant is chosen based on the equation for which the constant is defined.
 
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