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## What 2 things affect gravitational attraction?

When dealing with the force of gravity between two objects, there are only two things that are important – **mass, and distance**. The force of gravity depends directly upon the masses of the two objects, and inversely on the square of the distance between them.

## What is gravity attracted to?

Gravity **attracts anything with a mass (energy)**, i.e. electron, proton and neutron all feel gravity. But the fact is that gravity is very weak compared to other 3 kinds of known forces (weak, electromagnetic, and strong).

## What two factors influence the attraction between objects?

The strength of the gravitational force between two objects depends on two factors, **mass and distance**.

## Does gravity always attract?

In the case of gravity, mediated by spin 2 particles, charge is mass, which is always positive. Thus, q1q2 is always greater than zero, and **gravity is always attractive**.

## Does gravity attract light?

According to Einstein’s General Relativity Theory,light will be affected in the same way matter is affected by gravity. … Since light (whether perceived as a ray or a photon) has no mass, Newton’s equation predicts that **it will not be attracted by gravity towards anything**, no matter how massive.

## Why do things attract?

One item loses some of its electrons to the other item and becomes positively charged (i.e. it has more protons than electrons). The item that received the electrons becomes negatively charged (it has more electrons than protons). Since **the two items have become oppositely charged**, they are attracted to one another.

## Which two changes would increase the gravitational force between two objects?

Hence, the gravitational force between two objects can be increased by **increasing their masses, or by decreasing the distance between them**.

## What are the 3 laws of gravity?

In the first law, an object will not change its motion unless a force acts on it. In the second law, the force on an object is equal to its mass times its acceleration. In the third law, **when two objects interact, they apply forces to each other of equal magnitude and opposite direction.**

## How do you find the gravity between two objects?

**F=Gm1m2r2 , where:**

- F = gravitational force ( N )
- G = gravitational constant ( ~6.67⋅10−11Nm2kg−2.
- m1 and m2 = masses of objects 1 and 2 ( kg )
- r = the distance the centre of gravities of both objects ( m )