Electricity and Magnetism
Physical Science 8 with Moore at Laguna Blanca School
About this deck
By: Rebecca Brooks
Textbook:
Holt Science and Technology: Physical Science
Created: 2011-06-08
Size: 17 flashcards
Views: 7
Textbook:
Holt Science and Technology: Physical ScienceCreated: 2011-06-08
Size: 17 flashcards
Views: 7
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The law of electric Charges
the law that states that like charges repel and opposite charges attract
Friction
Electrons are wiped from one object to another
Conduction
Electrons move from one object to another by direct contact
Induction
The charges in an uncharged metal object rearrange without direct contact with a charged object
Electric Discharge
the release of electricity stored in a source
Charge
Difference in __________ causes charge to flow
Ground
All charge wants to go to the _____________
Magnetic poles
points on a magnet that have opposite magnetic qualities
Magnetic Field Lines
The lines that map out a magnetic field
Domains
tiny magnets of different sizes within an object.
They determine whether the object will be magnetic.
Ferrromagnet
magnets made with iron, nickel, cobalt, or mixtures of those metals
have strong metallic properties.
Electromagnet
made by an electric current.
usually has an iron core
Temporary magnets
- made from materials easy to magnetize
- tend to lose their magnetization easlily
Permanent magnets
- difficult to magnetize
- tend to keep their magnetization longer than other magnets
electromagnetism
The interaction between electricity and magnetism
doorbells and electric motors
Examples of electromagnetism
Electromagnet
a coil that has a soft iron core and that acts as a magnet when an electric current is in the coil
About this deck
By: Rebecca Brooks
Textbook: Holt Science and Technology: Physical Science
Created: 2011-06-08
Size: 17 flashcards
Views: 7
Textbook:
Holt Science and Technology: Physical ScienceCreated: 2011-06-08
Size: 17 flashcards
Views: 7
About StudyBlue
STUDYBLUE makes things that make you better at school.
Things like online flashcards with photos and audio.
Things like personalized quizzes and friendly reminders about when (and what) to study next.
Think of it as a digital backpack™: access to all of your study materials online and on your phone.
STUDYBLUE exists to make studying efficient and effective for every student, for free. Join us.
“I have used this website for three exams, and I see a huge difference in my test results.”
Naj
Naj