Why is the gravitational field strength stronger on earth than the moon?

The gravitational field strength is stronger on Earth than on the Moon primarily due to Earth's larger mass. Gravitational force is proportional to the mass of the object; since Earth has a much greater mass than the Moon, it exerts a stronger gravitational pull. Additionally, the Moon's smaller radius and lower density contribute to its weaker gravitational field. Consequently, objects weigh significantly less on the Moon compared to their weight on Earth.