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::#Cosmology- |
::#Cosmology- |
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::#Equilibrium- |
::#Equilibrium- |
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+ | |||

:B. Scientific Methods – the Big Lie - these methods allow us to say "This is what we think is true, based on current information." |
:B. Scientific Methods – the Big Lie - these methods allow us to say "This is what we think is true, based on current information." |
||

::#Problem, usually stated as a question |
::#Problem, usually stated as a question |
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::- - - - - - - - - - - |
::- - - - - - - - - - - |
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::Law- |
::Law- |
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− | :C. Experimental Design |
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− | ::Independent variable- |
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− | ::Dependent variable- |
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− | ::Control Group- |
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::Bias- |
::Bias- |
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− | : |
+ | :C. Units- a noun that follows a number to explain a measurement |

::meter --> distance |
::meter --> distance |
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::meters squared --> Area |
::meters squared --> Area |
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::List comparing English and SI units... |
::List comparing English and SI units... |
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− | : |
+ | :D. Affixes |

:::(see "The Chart") |
:::(see "The Chart") |
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− | : |
+ | :E. Significant Digits (sig fig) |

::1)Precision vs. Accuracy |
::1)Precision vs. Accuracy |
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::2)The measuring device determines the precision of the measurement. |
::2)The measuring device determines the precision of the measurement. |
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::3)Measurements must make sense for that given situation |
::3)Measurements must make sense for that given situation |
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:::Examples: |
:::Examples: |
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+ | :::252.17g ... mass using a triple beam balance scale |
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− | :::4016m (4) 55mph |
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+ | :::34.14s ... time when using a stop watch |
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− | :::4160s (3) 45.5mL |
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+ | :::55mph ... speed using a car's speedometer |
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+ | :::32.4mL ... liquid volume using an average graduated cylindar |
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− | : |
+ | :F. Measuring |

::1. Issues to consider before you start measuring |
::1. Issues to consider before you start measuring |
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:::Concept: |
:::Concept: |
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:::b. Estimate 1 more digit |
:::b. Estimate 1 more digit |
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:::c. Record correct units |
:::c. Record correct units |
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+ | |||

⚫ | |||

⚫ | |||

⚫ | |||

+ | ::Use graphing to define Density... |
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:H. Conversions |
:H. Conversions |
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::Calculate and simplify units |
::Calculate and simplify units |
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::Verify - are those the units you expected? Does the answer make sense? |
::Verify - are those the units you expected? Does the answer make sense? |
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− | |||

⚫ | |||

⚫ | |||

⚫ | |||

− | |||

− | :M. Relationships |
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− | ::1. Linear (Direct) |
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− | ::2. Reciprocal (Inverse) |
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− | ::3. Exponential (Quadratic) |
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− | ::The truth: In the real world graphs are a combination of 1-3 |

## Latest revision as of 03:21, 26 January 2012

- A. Define

- Rufus: He still digs humanity, but it bothers Him to see the $#!+ that gets carried out in His name: wars, bigotry, televangelism. But especially the factioning of all the religions. He said humanity took a good idea and, like always, built a belief structure on it.
- Bethany: Having beliefs isn't good?
- Rufus: I think it's better to have ideas. You can change an idea, changing a belief is trickier. Life should be malleable and progressive; working from idea to idea permits that. Beliefs anchor you to certain points and limit growth; new ideas can't generate. Life becomes stagnant.
- Comparing fact to belief Religion and Science are both attempts to explain the world. Humans are intelligent and have a natural curiosity with forces them to look for answers. We look for answers to questions that start with "How?" and "Why?" The most significant difference between the two approaches is that the nature of Science is to change when it is confronted with new information.

- Science-
- Physics-
- Astronomy-
- Quantum Theory-
- Relativity-
- Cosmology-
- Equilibrium-

- B. Scientific Methods – the Big Lie - these methods allow us to say "This is what we think is true, based on current information."
- Problem, usually stated as a question
- Research
- Hypothesis- an educated guess, that can be tested
- Experiment
- Theory- an explanation that has been tested, that may or may not agree with your hypothesis

- - - - - - - - - - - -
- Law-
- Bias-

- C. Units- a noun that follows a number to explain a measurement
- meter --> distance
- meters squared --> Area
- Liter = dm3 -->Volume
- second --> time
- gram = mass of 1mL of water
- Define: Length, Area, Volume, mass
- Compare/contrast mass and volume
- List comparing English and SI units...

- D. Affixes
- (see "The Chart")

- E. Significant Digits (sig fig)
- 1)Precision vs. Accuracy
- 2)The measuring device determines the precision of the measurement.
- 3)Measurements must make sense for that given situation
- Examples:
- 252.17g ... mass using a triple beam balance scale
- 34.14s ... time when using a stop watch
- 55mph ... speed using a car's speedometer
- 32.4mL ... liquid volume using an average graduated cylindar

- F. Measuring
- 1. Issues to consider before you start measuring
- Concept:
- Units:
- Scale
- Smallest amount that can be measured:
- Largest amount that can be measured:
- Increment:
- Precision:

- 2. Issues to consider while measuring
- Parallax
- Meniscus
- “Burning an inch”
- Estimation
- To position and use a ruler correctly, pretend the graduations (marks/lines) have NO thickness. If they are VERY thin, you should try to use the center of each mark

- 3. Measuring Mindset
- a. Measure and record the "at least"
- b. Estimate 1 more digit
- c. Record correct units

- 1. Issues to consider before you start measuring

- G. Graphing in Physics
- includes the slope equation
- Demo of a programmer using these equations.
- Use graphing to define Density...

- H. Conversions
- 4/4 = 1 and 25 X 1 = 25 ...

- I. Metric Conversions ...

- J. Scientific Notation
- 1.Rules
- always write number with one digit to the left of the period
- Converting TO Scientific Notation...
- if num >= 10, exp is positive
- if num <1, exp is negative
- if 1<= num <10, exp is 0

- Converting TO Scientific Notation...
- -------------------------------------
- Converting FROM Scientific Notation...
- if exp is positive, move decimal to right
- if exp is negative, move decimal to left

- Converting FROM Scientific Notation...

- always write number with one digit to the left of the period
- 2.Examples

- 1.Rules

- K. Problem Solving strategy
- Read the problem
- Make a prediction including units
- Take inventory - What do we know and what do we need to know?
- Choose an equation
- Solve for x
- Substitute
- Calculate and simplify units
- Verify - are those the units you expected? Does the answer make sense?