no it is not a physical change because folding a piece of paper does not chemicaly change it.
Yes it's a physical change. No new substance is formed,
A physical change is a change that affects the form of a substance without altering its chemical composition. Examples include bending a metal sheet, folding a piece of paper, or tearing a piece of fabric.
Physical change
No. It is a physical change because there is no change in the chemical composition of the paper. If you were to burn the paper, that would be a chemical change called combustion, which would turn the paper into carbon dioxide and water, with the release of heat.
Folding the piece of paper does not change the thickness of the piece of paper. However, the thickness of the folded paper would be twice that of the original sheet of paper.
Burning is a chemical change.
Coloring on a white piece of paper is a physical change because the color change is reversible and does not alter the chemical composition of the paper. The paper remains paper even after coloring on it.
Physical- it is still a piece of paper. It can be unwadded. But if you burned it (a chemical change) it is no longer paper, and you cannot unburn something.
The rusting of an iron pole is a chemical change. An example of a chemical change would be crumbling a piece of paper. When you are crumbling this piece of paper, the contents of the paper have not change and you are able to uncrumble the paper there is no difference except the paper has wrinkles. :) However in an example of chemical change like a metal rusting, you cannot un-rust it, it was chemically changed. Another example of a chemical change would be burning a piece of paper to ashes.
In order to change the physical properties of an object, one must alter the 'format' of an object. An alteration of the physical properties is only a shift in the way an object can be described, not in the chemical composition of the product. In context a piece of paper could have its physical properties changed by being burned, being shredded, or by being submerged in water.
Cheimical change
Cheimical change