0
Why g is called the universal gravitational constant.
Answer:
Because it's the constant in Newton's Law of Universal Gravitation.
It's "gravitational" because it is related to gravity; "universal ... constant" because it is the same in all cases.
"Universal" because it applied to the whole of the Universe.
Another answer. But, g isn't called the universal gravitational constant.
g is the acceleration due to gravity on our planet only.= 9.81 m s-2
The universal gravitational constant is G (often called big G ) = 6.673 x 1011 m3 kg-1 s-2.
It appears in Newton's equation f= Gm1m2 / d2 .
Still curious? Ask our experts.
Chat with our AI personalities
Coach
Devin
ViviAdd your answer:
Earn +20 pts
Who measured the gravitational constant G?
Cavendish measured the gravitational constant "G".
What apparatus was used by Cavendish to discover the universal gravitation constant?
The gravitational constant denoted by letter G, is an empirical physical constant involved in the calculation(s) of gravitational force between two bodies
When was g the earth's gravitational constant calculated?
g, the force of the Earth's gravitational attraction, is not a constant.
What is the SI unit of gravitational constant g?
It is m3kg-1s-2
What effect of gravitational acceleration on Gravitational constant G?
The gravitational constant, G (big G), is a physical constant that doesn't change at all. The magnitude of gravitational acceleration, g (little g), has no effect on G.Little g is used as an approximation for near-surface gravity of a planet (or other large mass). The reason it is used is because the formula for universal gravity and Newton's second law:F = G (mplanet*mobject)/(r3) -- r is the distance between the centers of massF = mobject*aobjectyields (when set equal and dividing out the mass of the object): aobject = G (mplanet)/r3As you can see, the acceleration due to gravity won't change much for distances near the planet's surface. We call the above magnitude, g. Each planet has its own g and Earth's is about 9.8 m/s2.
