1. The physical world: Machines can manipulate materials, transform energy, and create new objects. For example:
* A car engine changes chemical energy into mechanical energy to move the car.
* A 3D printer changes digital designs into physical objects.
* A crane changes the position of heavy objects.
2. Information: Machines can process, store, and transform information. For example:
* A computer changes data into useful information, like a spreadsheet or a website.
* A phone changes your voice into electrical signals to be transmitted over the network.
* A search engine changes your search query into a list of relevant results.
So, depending on how you define "change," a machine can change the physical world or information.
