Exam (elaborations)
Physics Fields (1).
Exam of 1 pages for the course REE 301 at REE 301 (Physics Fields (1).)
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Physics FieldsForce - ANS-a push or pull; interaction between objects; unit: Newton = 1 kg∙m/s²
Field (physical meaning) - ANS-an area of influence; objects or energy can be affected
when they enter the area
Field (math definition) - ANS-an area with a value assigned to every location
Scalar Field - ANS-an area where each location has a numerical value
Vector Field - ANS-an area where each location has a direction and numerical value
Gravitational Force - ANS-the mutual force of attraction between particles of matter
Gravitational Field - ANS-area around a massive object that affects other objects; base
for gravitational force
Electric Force - ANS-mutual attraction or repulsion between electrically charged
particles
Electric Field - ANS-area around a charged object that affects other charged objects;
the strength and direction tell what electric force a + charge would experience there;
particles with charge always make electric fields
Magnetic Field - ANS-Area of influence of moving electric charges; basis for magnetic
force ("B-field"); particles with charge always make magnetic fields when moving; unit:
Tesla (T)
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