no not necessary
Molding a piece of silver using heat is a physical change. This is because it is changing shape and not chemically changing the silver.
Yes
No. A motherboard is a piece of hardware. You cannot download hardware.
physical, you are only changing its appearance! :P
Cause you're changing the direction of the atoms when you magnetize it.
No, changing the size and shape of a piece of wood is not a chemical change; it is a physical change. In a physical change, the material's appearance or form is altered, but its chemical composition remains the same. For instance, cutting or sanding wood changes its dimensions but does not alter its chemical structure.
Cutting a piece of copper in half is a physical change because it only alters the physical appearance of the copper without changing its chemical composition.
Its initially a defective piece !! yoyo!
The motherboard is an essential piece of hardware needed to run the computer, because it contains all the components that make the computer work. Specifically, it contains slots for memory, the CPU, ports for peripherals, USB, and Firewire, among other things.
Physical change. The paper is still a piece of paper; nothing happened to the chemical composition of it.
Changing a headlight bulb in a 2007 Buick Lacrosse can be done easily. Just remove the cover piece and change the bulb.
change the direction of force,because it exerted the force on it.