* Weight: Weight is the force of gravity acting on an object's mass. So, if gravity increases, an object's weight will also increase.

* Acceleration due to gravity (g): This is the rate at which objects fall towards the Earth due to gravity. If gravity increases, the value of 'g' will also increase.

* Orbital speed: The speed at which an object orbits another object (like a satellite around the Earth) depends on the gravitational force. If gravity increases, the orbital speed will need to increase to maintain a stable orbit.

How these measurements will change:

* Weight: Weight is directly proportional to the force of gravity. If gravity doubles, weight will also double.

* Acceleration due to gravity (g): 'g' is directly proportional to the force of gravity. If gravity increases by a factor of 'x', then 'g' will also increase by a factor of 'x'.

* Orbital speed: Orbital speed is proportional to the square root of the force of gravity. If gravity increases by a factor of 'x', the orbital speed will increase by the square root of 'x'.

Important Note: It's crucial to remember that increasing the force of gravity on Earth is not something that can happen naturally. The gravitational force is primarily determined by the Earth's mass and size. To change the force of gravity, you would need to fundamentally alter the Earth itself.