Knowing the mass and radius of the Earth and the distance of the Earth from the sun, we can calculate the mass of the sun (right), again by using the law of universal gravitation.The gravitational ...

In other words, this hypothetical force would fall off slower than the inverse square of the distance. It would thus become more important than gravity when calculating the gravitational pull from ...

GCSE Combined Science Motion and forces learning resources for adults, children, parents and teachers.