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Lecture 2: Matter and Energy
  • Claire Pascual

  • 問題数 31 • 9/2/2023

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    問題一覧

  • 1

    Anything that occupy space and has mass.

    matter

  • 2

    What are the states/phases of matter?

    Solid, Liquid , Gas, Plasma, Bose-Einstein Condensate

  • 3

    A type of matter in which all samples have fixed composition and identical properties.

    Pure Substance

  • 4

    All atoms have the same number of atoms.

    Elements

  • 5

    Composed of two or more elements chemically bonded in a definit fixed ratio by mass.

    Compound

  • 6

    A type of matter composed of varying proportions of two or more substances that are just physically mixed, not chemically bonded.

    Mixture

  • 7

    A mixture that is uniform throughout which like it might be just one substance.

    Homogeneous

  • 8

    A mixture that has at least two or more components can be observed.

    Heterogeneous

  • 9

    All elements are made up od atoms.

    Atomic Theory

  • 10

    An element having the same atomic number but different mass number.

    Isotopes

  • 11

    An atom or geoup of atoms with one or more positive or negative electrical charges.

    Ion

  • 12

    Second building block of some types of matter.

    Ion

  • 13

    Contains at least two carbon atoms combined with atoms of other elements.

    Organic Compounds

  • 14

    A compound carbon of few number of carbon atoms are present.

    Inorganic compounds

  • 15

    Compounds of hydrogen and carbon atoms. Ex: CH4 simplest natural gas, octane: component of gasoline

    Hydrocarbons

  • 16

    Compounds of carbon, hydrogen and chlorine atoms. Ex: insecticide DDT(C14H19C15)

    Chlorinated Hydrocarbons

  • 17

    Carbon, hydrogen and oxygen. Ex: glucose

    Simple Hydrocarbons

  • 18

    Cellulose and starch, which consist of 2 or more monomers of simple sugars such as glucose.

    Complex carbohydrates

  • 19

    Formed by monomers called amino acids.

    Proteins

  • 20

    Smallest and fundamental structural and functional units of life.smallest and fundamental structural and functional units of life.

    Cell

  • 21

    Basic unit of inheritance found in the DNA molecules that contain genetic information.

    Genes

  • 22

    Special DNA molecule together w/ proteins.

    Chromosome

  • 23

    Measure of how useful a given sample of matter is as a resource for humans.

    Matter Quality

  • 24

    Highly concentrated, typically found near the earth's surface, and has great potential for use as a resource

    High Quality Matter

  • 25

    Not highly concentrated, often located deep underground or dispersed in the ocean or atmosphere, and usually has little potential for use as a resource.

    Low Quality Matter

  • 26

    Thare is no change in its chemical composition.

    Physical Change

  • 27

    There is a change in chemical composition of the substance involved.

    Chemical Change

  • 28

    Changes in the nuclei of its atoms(radioactive decay, nuclear fission, nuclear fusion)

    Nuclear Changes

  • 29

    A measure of an energy source's capacity to do useful work.

    Energy Quality

  • 30

    Concentrated and has a high capacity to do useful work. Examples are very high-temperature heat, nuclear fission concentrated sunlight, high-velocity wind, and energy released by burning natural gas. gasoline, or coal.

    High-Quality Energy

  • 31

    Dispersed and has little capacity to do useful work. An example is heat dispersed in the moving molecules ofa large amount of matter (such as the atmosphere or an ocean) so that its temperature is low.

    Low-Quality Energy