Chemistry Chapter 2 10.3.05
Terms
undefined, object
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- A written description
- Qualitative
- Broad generalization that explains a body of facts or phenomena
- Theory
- Amount of space occupied by an object
- Volume
- Combinations of SI base units
- Derived Units
- Measures the gravitational pull of matter
- Weight
- Refers to the closeness of a set of measurements of the same quantity made in the same way
- Precision
- Specific portion of matter in a given region of space that has been selected for study during an experiment or observation
- System
- A testable statement
- Hypothesis
- Written in numbers numerically
- Quantitative
- The sky is blue (example)
- Qualitative
- Can be visual,verbal,mathematical; explanation of how phenomenas occur and how data or events are related
- Model
- Refers to the closeness of measurements to the correct or accepted value of the quantity measured
- Accuracy
- Copper ore had a mass of 25.7 grams
- Quantitative
- Measure of the quantity of matter
- Mass
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1. Observe/ Collect data
2. Formulating hypothesis
3. Testing hypothesis
4. Theorizing
5. Publish results - List the 5 steps of the scientific method:
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Symbol:
LENGTH - l
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Unit Name:
LENGTH - Meter
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Instrument:
LENGTH - Ruler
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Unit Abbreviation:
LENGTH - m
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Symbol:
MASS - m
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Unit Name:
MASS - Kilogram
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Instrument:
MASS - Balance
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Unit Abbreviation:
MASS - Kg
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Symbol:
TIME - t
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Unit Name:
TIME - Second
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Instrument:
TIME - Clock
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Unit Abbreviation:
TIME - s
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Symbol:
TEMPERATURE - T
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Unit Name:
TEMPERATURE - Kelvin
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Instrument:
TEMPERATURE - Thermometer
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Unit Abbreviation:
TEMPERATURE - K
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Symbol:
AMOUNT OF SUBSTANCE - n
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Unit Name:
AMOUNT OF SUBSTANCE - Mole
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Unit Abbreviation:
AMOUNT OF SUBSTANCE - A
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Symbol:
WEIGHT - F
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Unit Name:
WEIGHT - Newton
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Instrument:
WEIGHT - Spring Scale
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Unit Abbreviation:
WEIGHT - N
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Symbol:
VOLUME - V
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Unit Name:
VOLUME - Cubic Meter
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Instrument:
VOLUME - Cylinder
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Unit Abbreviation:
VOLUME - m3
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Kilo
Hecto
Deka
Meter,Liter,Gram
Deci
Centi
Milli - What is the order of units?
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Kilo
K -
What is the 1st unit
What is its abbreviation -
Hecto
h -
What is the 2nd unit
What is its abbreviation -
Deka
da -
What is the 3rd unit
What is its abbreviation -
Meter, Liter, Gram
m, l, g -
What is the 4th unit
What is its abbreviation -
Deci
d -
What is the 5th unit
What is its abbreviation -
Centi
c -
What is the 6th unit
What is its abbreviation -
Milli
m -
What is the 7th unit
What is its abbreviation -
1. Skill of the measurer
2. Conditions of matter
3. Measuring instrument - List some cause of error in measurements