Quiz 1 Flashcards
Metals are __________ conductors (gold, copper). Insulators are ______ conductors: rubber and glass.
Some physical substances are “semiconductors”; they can under certain conditions be made to conduct in a very efficient manner. We, as humans, are ________: sometimes we conduct electricity very efficiently, such as with the insertion of acupuncture needles.
metals = superior
Insulators = poor
Humans are semiconductors
Radioactivity results from the balance between the electrical forces within atoms interacting with the strong nuclear force. Which atoms show destabilization between these forces?
Protons remain in nucleus via strong nuclear force, despite repellant tendencies of like-charge electrical forces
- Strong nuclear forces weakens considerably relative to distance, electrical force does NOT.
- Which atoms show destabilization between these forces? Uranium 238 is an exemplar of destabilized nucleus.
Who were the historical figures responsible for developing the mechanical nature of physical reality?
- Aristotle
- Nicolaus Copernicus
- Galileo
- Isaac Newton
Why are comets no longer referred to as “dirty snowballs”?
Comets are not just big blocks of ice that melt when they are near the sun (producing what we call “outgassing”). Comets are actually hugh bodies of magnetized iron that accrue electronegativity as they travel through the far reaches of extrasolar space (their origin is in the sphere outside our solar system, known as the “Oort Cloud”).
When these highly electronegative bodies near the giant ball of hydrogen (positively charged) known as our sun, spectacular plasma discharge may occur, igniting the heavens.
What are the properties of plasma?
(an electrified gas):
•readily conducts electric current
•absorbs certain kinds of radiation
•can be shaped/moved by electric/magnetic fields
What events occurred during the early 20th century that limited the continuation of bioelectromagnetism in medicine?
In 1910 the Carnegie Foundaton & Andrew Flexner published the Flexner report - a short book stating that bioelectromagnetism was a false phenomena and calling for a restructuring of medical school programs in the US - limiting admissions to men and forcing many medical schools to merge or close altogether. Universities were told either to drop the courses having to do with bioelectromagenetism from their curriculum or lose their accreditation and underwriting support.
_________ - A Greek philosopher who was a student of Plato. He is considered the Founder of Formal Logic: Natural motion, Violent Motion, Quinetessence-the 5th Element/Spiritual
Aristotle
______ ______ - was a mathematician & astronomer who formulated a model of the universe that placed the Sun rather than the Earth at the center. The publication of this model was in a book called De revolutionibus orbium coelestium (On the Revolutions of the Celestial Spheres) just before his death in 1543….it was considered a major event in the history of science, triggering the Copernican Revolution and making an important contribution to the Scientific Revolution.
Nicolaus Copernicus
_________ - Calculus, Optics w/Ballistic Curve? An Italian Physicist, mathematician, astronomer, engineer & philosopher, ..known as the Father of Science, the Father of Modern Science, The father of modern Physics, the father of modern observational astronomy, he improved the telescope & supported Copernicanism. He was the first modern thinker to clearly state the laws of nature are mathematical. He is known for writing an early piece of work that focused on what is now known as Kinetic-the study of classical mechanics which describes the motion of points, bodies (objects) and systems of bodies (groups of objects) without consideration of the causes of motion.
Galileo
______ ______came up with the LAWS of Inertia.. 1.) Newton’s first law of motion (law of inertia): every object continues in its state of rest, or in uniform motion in a straight line, unless compelled to change that state by forces impressed upon it. 2.) Newton’s second law: The acceleration of an object is directly proportional to the net force acting on the object, is the direction of the net force, and is inversely proportional to the mass of the object. 3.) Newton’s third law: Whenever one object exerts force on a second object, the second object exerts an equal and opposite force on the first.
Isaac Newton
