Forces and Fields (continued) Flashcards
What are the three fields
Gravitational, electric, magnetic
What does the term field refer to
The term field refers to a mathematical concept with geometric descriptions of the strength, range, and direction associated with an object’s ability to exert force on another object
WHat causes gravitational fields?
Anything with mass
What is affected by gravitational fields
Anything with mass and electromagnetic radiation
How are gravitational fields shaped
The direction of the force of the field is toward the center of the object causing the field
What is a parallel-plate capacitor?
It is formed when two metal plates are placed close together face to face and are able to store charge
What causes Electric fields?
any charged object
What is affected by electric fields
Any charged object
What are the two poles of a magnet
South and North
What is one interesting thing about magnets
Magnetic poles alway’s come with a North and South pole and there are no monopole magnets
What does Ampere’s law state
That a magnetic field is produced around a current carrying wire
What is an electromagnet made from
an energy conducting wire wrapped around a magnet
WHat is a ferrous metal
Any metal that has iron in it
What does an MRI use to scan you
SUPER ELECTROMAGNETS
What causes magnetic fields
Magnets and current carrying wires
