Question

What are two ways of changing KE?

Answer 1

one you can drop a book one the floor, and the KE changes and goes to the floor, or when you type on a keyboard, the KE goes from your hands and goes to the keyboard itself.

Answer 2

Heat is involved in chemical change in two ways; chemical changes either result in heat being added to or removed from an object, and chemical changes require a certain amount of heat before they can take place. Both of these two mechanisms of chemical change involve the heat characteristics of the involved substance or substances and the environment in which the chemical change is taking place.