Lesson 1 - Magnet Flashcards
1
Q
Body having the property of polarity and of attration and repulsion found in the nature of the lodestone
A
Magnet
2
Q
Two opposite poles
A
North and south
3
Q
Naturally magnetized piece of the mineral magnetite which can attract irons
A
Lodestons
4
Q
With magnet properties
A
Iron ex. Paper clip, screws ; nickel, cobalt
5
Q
Without magnetic properties
A
Rubber, wood, styrofoam, paper, ceopper penny, aluminum foil
6
Q
Law of magnetism
A
Opposite poles attract or pull together; similar poles push each other apart
7
Q
Magnetic field also called as
A
Field of force
8
Q
Classes of magnets
A
Natural magnets, permanent magnets, electromagnets
9
Q
Iron ores called
A
Magnetite
10
Q
Magnetite discovered
A
Centuries ago near magnesia in Asia minor
11
Q
Permanently magnetized
A
Bars and hardened steel
