The most prominent force inducing tides on Earth is the Moon's gravitational pull, creating differential forces that result in the twice-daily tides as Earth rotates through the tidal bulges.
The most prominent force inducing tides on Earth is the Moon's gravitational pull. Although the Sun's gravitational attraction is significantly stronger than the Moon's when considering the entire Earth, it is the differential gravitational forces of the Moon that have a greater effect on the creation of Earth's tides. This is because the gravitational force exerted by the Moon varies across Earth's diameter, being stronger on the side of Earth closer to the Moon, which leads to the formation of tidal bulges.
The tidal bulge that occurs on the side of Earth facing the Moon is due to the Moon's stronger gravitational pull on that side. Similarly, the far side experiences a high tide because the Earth is pulled toward the Moon more than the water on that far side, causing the water to bulge outward. The rotation of the Earth through these tidal bulges as the Moon orbits results in the twice-daily tides that are observed.