I assume that you are asking for words which mean this, not examples of things which are mutable, mercurial, flighty, inconstant, vacillating, inconsistent or fluid.
Something rigid is stiff and not easily bendable or flexible. It does not easily change shape or position.
When something changes position, we say it is in motion.
When something changes position, it is moving from one location to another. It undergoes a displacement in space resulting in a change in its spatial coordinates.
there is no such thing as NON-inertia. if something is moving it'll keep moving until something stops it. and if something is still it'll stay still until something makes it move. everything living or non living has inertia.
Changes in the level, intensity, amount, location, or form of something are known as variations. This term encompasses any modifications or differences in these aspects.
Shape
shape and volume
Yes. Chemical changes are irreversible, but physical changes can easily be changed back
Something rigid is stiff and not easily bendable or flexible. It does not easily change shape or position.
Yes, the ability to melt easily is a physical property of a substance, not a chemical property. Chemical properties describe how a substance reacts with other substances or undergoes chemical changes.
People
When something changes position, we say it is in motion.
shape
Compact or mobile are words that are usually applied to create a phrase of something that can be carried easily.
The measurement of the size of something in three-dimensional space.
Yes, it is correct to say that something is done more easily. Easily is an adverb.
Something that is easily readable