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admin on Saturday, June 26th, 2010 |
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am building a hipothesis on science class, my hipothesis is= are magnets charge of particles of electricity. If you think it doesnt make sense please help me.
Technorati Tags: electricity, magnets, particles, science class
By
admin on Saturday, May 29th, 2010 |
3 Comments
I have to finish this assignment tonight and I need desperate help here! We’re having a test tomorrow… It’s okay if you don’t know all the answers but if you know any to a specific question- please let me know!!! Thanks a ton!
The following statements are false. Explain why:
-The greater the distance from a charged object, the stronger the electric field.
- A charged object can only attract other charged objects.
- Current flows around a complete circuit, but it is used up by objects like light bulbs so less current returns than leaves the source of the electricity.
- Insulation is used to keep electricity in the wire.
- Birds can perch on bare wires without being hurt because birds have insulated feed.
Questions:
- Why is there no overall electric charge in a neutral object?
- Why do most materials have magnetic properties too weak to be detected easily?
- How could earth’s magnetic field magnetize an iron bar over many years?
- A ___ is a device that has a magnetized needle that can spin freely.
- A ___ is the glowing region in the atmosphere caused by charged particles from the sun.
- The region of the earth’s magnetic field shaped by the solar wind is called the ___.
- The ___ is a stream of electrically charged particles flowing at high speeds from the sun.
- The attraction or repulsion of magnetic poles is called_____.
Any one else have answers that "The Pokedex" doesn’t have? That’s all I need left! Thanks!
Thanks everyone! I don’t need any more answers now, my assignment is done!
Technorati Tags: atmosphere, birds, earth, electricity, high speeds, insulation, iron bar, leaves, light bulbs, magnetic field, magnetic poles, magnetic properties, neutral object, particles, pokedex, repulsion, solar wind, sun, test tomorrow
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admin on Tuesday, May 4th, 2010 |
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doing project on science and need to know what makes a magnet magnetic and if it charge of particles of electricity. What can be some useful experiments.
Technorati Tags: electricity, magnet, particles, science, useful experiments