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☆☆☆☆☆Gravitational potential energy is the potential energy an object has due to its position in a gravitational field. The higher an object is the greater its gravitational potential. When it falls the gravitational potential becomes kinetic energy.
Energy stored in height differences ~APEX
Solids don't change their size or shape.
Solids change their shapes in many ways. Solids will melt if they are in hot temperatures, and this changes their shape.
an anthill
energy can neither be created nor we destroy
That energy can only be converted between different forms ~Apex
The law of conservation of matter
Anything that lives except air, light, sound.
That the total number of atoms in matter will never change
Answer2:
As I learned it:
Matter can neither be created nor destroyed, only changed in form.
This is/was Newtonian physics. Einstein showed that in nuclear events matter can be changed to energy. And, in general relativity even more complex change can occur.
Water freezing into ice is an example of a phase change from liquid to solid.
Chemical potential energy converting to heat energy- apex
Liquids
Atoms
it can change shape and volume
