Which changes would result in a decrease in the gravitational force between two objects? check all that apply.
increasing the distance between the objects
decreasing the distance between the objects
increasing the mass of one of the objects
increasing the mass of both objects
decreasing the mass of one of the objects
decreasing the mass of both objects

These sort of questions need to be looked at from a logical stand point.

There is a formula for this, lets see if it helps:

F = G × m₁*m₂ ÷ r²

If we increase the distance between the two, the gravitational force will be decreased (try plugging numbers in and see what happens). Logically as well, for example, if you increase the distance between to attracting magnets, their magnetic forces will decrease, same goes for gravitational force.

Therefore, number 1. is CORRECT.

Number 2. is incorrect because it is the opposite of number one.

Number 3. is incorrect because the larger the mass of an object then the stronger its gravitational force will be.

Number 4. is incorrect because once more, increasing the mass only means increasing the gravitational pull/force between the two objects.

Number 5. is correct since decreasing the mass with decrease the force it has on the other object.

Number 6. Is also correct because once again!! Decreasing the mass of one object or two will still decrease the gravitational pull between the two objects.

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

double the distance = divide strength by 4