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Gravitational field strength definition

The gravitational field strength ($$g$$) is the gravitational force per unit mass.

$$g$$ has units of $$\text{N/kg}.$$

At the surface of the Earth the gravitational field strength is roughly constant. Its value is $$g = 9.81 \text{ N/kg} \approx 10 \text{ N/kg}.$$

The gravitational field strength on other planets is different to on Earth. On Mars $$g = 3.8 \text{ N/kg}$$ and on Jupiter $$g = 26 \text{ N/kg}.$$

The gravitational field at the surface of the Sun is about 30 times larger than at the surface of the Earth.
The gravitational field at the surface of the Sun is about 30 times larger than at the surface of the Earth.