Exam (elaborations)
RSCI 210- Dotson Questions And Answers Latest Update
- Course
- RSCI 210
- Institution
- University Of Southern California
RSCI 210- Dotson Questions And Answers Latest Update
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lOMoARcPSD|22014731RSCI 210- Dotson
SI units - correct answers (Standardized Units) a measurement you can compare quantities of same kind.
2 types of SI Units - correct answers 1) fundamental
2) Derived Units
Fundamental units - correct answers length, mass, time
derived units - correct answers area, volume, temp
mass - correct answers amount or quantity of substance
" How much stuff is in something" measured in kilograms
length - correct answers distance that light travels in a vacuum in 1/299792485 second
-measured in meters
Time - correct answers amount of vibrations of cesium-133 atoms
-measured in seconds
matter - correct answers describes the substance which comprises all objects
-has shape, formed and occupies space
Mass - correct answers quantitiy of matter contained in an object
Weight - correct answers force an object exerts under gravity
Substances - correct answers a material that has a definite and constant shape
Mixture - correct answers when 2 or more substances are combined ex) air
simple - correct answers (elements) cannot be broken down by normal means
ex) O2
complex - correct answers (compounds) can be broken down. Ex) water, salt
Atom - correct answers smallest particle of element that has the same chemical properties of element
Molecule - correct answers smallest particle of different atoms (compounds) that has the same properties of compound. ( 2 or more atoms chemically combined)
Energy - correct answers defined as the actual/potential ability to do work.
Radiation - correct answers when Energy is transferred through matter (light, heat)
Ancient Greeks - correct answers Believed matter has 4 different components: air, water, earth, and fire
John Dalton - correct answers All elements could be differentiated from 1 or another based on mass
-elements are composed of atoms and they behave the same way when they undergo a chemical rxn
Dimitri Mendeleev - correct answers Developed first periodic table of elements
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