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18 Cards in this Set
- Front
- Back
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Pure vs applied science
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Pure science- is understanding science for the sake of knowing and understanding nature
Applied science- is (technology) imitating nature |
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Physical Science and Life Science
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Phyiscal science- study of non-living things
Life science-study of living organisms |
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Life Science Feilds of Study
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Physics, Chemistry, Geology, Meterology, Astronomy, Biology,Zoology,Botony
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Law vs. Theory
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Law explains how something happens
Theory-explains why something happens |
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Scientific Method
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1. Recognize a problem or ask a question
2. Research on that topic 3.Make an educated guess-hypothesis 4.Predict the answer to your question 5.Expirement to test hypothesis 6.Formulate the simplest general rule |
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Independent vs. Dependent
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Independent- factor adjusted by the expirementor
Dependent- the variable that changes based on the I.V. |
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Constant and Control
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Constant-factors that do not change throughout the expirement
control- standard used for comparison |
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SI Base Units
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Mass-kg
length-m Time-s Tempurature- kelvin amount of substance-mole intensity of electrical current-ampere luminous intensity- candela |
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vector vs. scalar
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vector- size, unit, direction
scalar- size, unit |
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distance vs. displacment
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distance- scalar quantity which refers to how far the object travels
displacement- vector quantity which refers to the difference in the ibjects initial and final position |
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Speed
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a scalar quantity which refers to the rate an object covers
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Rate
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any change over time
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Calculating Speed
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Sav=∆d/∆t
t=d/s d=s* t |
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Velocity
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a vector quantity which refers to the rate at which an object changes its position
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Calculating Velocity
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V=total displacment= =∆x/∆t
total time |
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Instantaneous vs. Average speed
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Instantaneous-speed at any given instant in time
average- average of all instantaneous speeds; found by a distance/ time ratio |
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Acceleration
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a vector quantity which refers to the rate at which an objectt changes its velocity
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Calculating Acceleration
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Acceleration= change in velocity/ total time
a=∆v/∆t =(vf-vi)/(tf-ti) f=final i=initial |
