A gravitational field is a region in space where objects with mass experience a force of attraction towards each other due to the pull of gravity.
Earth's rotation causes a centrifugal force that slightly reduces the strength of the gravitational field at the equator, making objects slightly lighter. However, this effect is very small and not noticeable in everyday life.
Latitude has a small effect on the strength of the gravitational field in the UK. The closer an object is to the equator, the weaker the gravitational force will be due to Earth's rotation. However, this effect is very small and not noticeable in everyday life.
The strength of Earth's gravitational field is measured using a unit called "g-force" or "acceleration due to gravity." This is a measure of how much an object would accelerate towards the center of Earth's mass if it were in free fall.
No, gravitational fields cannot be shielded or blocked. They are a fundamental force of nature and are always present, regardless of any barriers or objects in the way.