Subjective constancy, and it's not a skill.
perceptual constancy
The "amount of matter" is an informal description of the mass. The force in question is called gravity.
Gravity is caused by the masses of the objects involved. Different objects attract each other, just because they have a certain amount of a property called "mass".Gravity is caused by the masses of the objects involved. Different objects attract each other, just because they have a certain amount of a property called "mass".Gravity is caused by the masses of the objects involved. Different objects attract each other, just because they have a certain amount of a property called "mass".Gravity is caused by the masses of the objects involved. Different objects attract each other, just because they have a certain amount of a property called "mass".
perceptual regions
If you are distracted, you may not even notice the rain. But it is loud enough that you will be able to recognize it as rain and will notice when it stops.
If you are distracted, you may not even notice the rain. But it is loud enough that you will be able to recognize it as rain and will notice when it stops.
This is called relative motion. Relative to your frame of reference, the object's motion appears unchanged, even though it's motion has actually changed.
That is called acceleration.
This perceptual tendency is called closure. It refers to the brain's ability to visually fill in missing information to perceive a whole object even when parts of it are missing or incomplete.
perceptual adaptation
Closure.
Objects inside a tornado are called debris.