If the moon's size doubled while staying in the same position, its mass would increase. As a result, the gravitational force between the Earth and the moon would become significantly stronger.

Yes, if the moon's size doubled while staying in the same position, its mass and therefore gravitational force would increase. According to Newton's law of universal gravitation, the force of gravity between two objects is directly proportional to their masses and inversely proportional to the square of the distance between their centers.

Since the moon's mass would increase, the gravitational force between the Earth and the moon would become significantly stronger. This means that the moon's gravitational pull on objects on Earth, such as ocean tides, would also increase. Additionally, the Earth's gravitational pull would have a stronger effect on the moon, potentially altering its orbit or influencing other celestial phenomena.