You can rub a magnet along the metal in one direction for a bunch of times (the more the better), and that will magnetize it to some degree, but itís not permanent and will demagnetize if it is hit hard with something.
Also, to magnetize something like a nail, if you point one end north, and hit the other end with a hammer it should weakly magnetize it. Unfortunately it doesn't work every time.
Links are provided to Wikipedia and a couple of other sources.
An atom of an element that has a different number of neutrons in its nucleus to other atoms of the element
Water contracts as it cools, like all other liquids, until it reaches a temperature of about 4 degrees Celsius, at which point it expands and begins to form into crystals, expanding approximately 9 percent.
When a text or image is entered into the CPU, it produces a series of varying voltages. This controls a LED (light emitting diode) in the printer. This emits flashes of laser, when it falls on a charged photo conducting drum. The area corresponds the text or image will either be neutralized or oppositely charged. A toner which has the same charge as the background is sprayed onto it. It only sticks to the text or image and is repelled by the background. A fresh paper is now pressed onto the toner and is slightly heated so that it sticks firmly on the paper....
Parallel forces are two or more forces which act in parallel. The forces do not have to be in the same direction however.
Select appropriate Question to view its more answers in this category of
Do you find any Answer incorrect or incomplete? Please e-mail us or
place your comment and mention the number of question or if you have correct answer then
open the appropriate question by clicking on question and then place your answer in comment
regarding particular question in this category "Physics Interview Questions and Answers" To ensure quality,
each change is checked by our team, before it enters the main website
database. If you desire so, the changes will be credited to your name.