Flashcards: Magnets
All 14 terms
Terms | Definitions |
|---|---|
 gravity | the force that pulls all objects in the universe toward one another |
| force | any push or pull that causes an object to move, stop, or change speed or direction |
| friction | a force that opposes, or acts against, motion when two surfaces rub against each other |
| magnetism | the force of attraction between magnets and magnetic objects |
| magnetic field | the space around a magnet where magnetism acts |
| conductors | Metals |
| pole | a place on a magnet where the magnet is strongest |
| insulators | air, ruber, glass, plastics |
| magnet | an object that pulls iron and steel things to it |
| three forces that affect Earth and objects on Earth every day | friction, magnestism, and gravity |
| characteristics of magnets | Every magnet has two poles. (north & south) Every magnet has a magnetic field around it. |
| Earth | one gigantic magnet |
| Magnets & electricity similar | Magnets are used to generate, or produce electricity. Spinning a coil of wire inside a magnetic field produces an electric force between the ends of the coil. |
| Opposite magnets attract | The north and south seeking poles of two magnets attract each other-magnetic force pulls them together. |