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Systems of units

Chapter 1.4 Outline

Subject: 
Chemistry
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International System of Units
Measurement
Physics
SI base units
Physical quantities
State functions
SI prefixes
Systems of units
Kelvin
Temperature
Litre
Gas constant

Quantitative properties - associated with numbers Units must always be specified Scientific measurements use the metric system SI Units Seven base units are used by SI Prefixes are used to modify powers of 10 of these units Length and Mass Mass - the measure of the amount of material in an object Temperature - a measure of hotness and coldness (physical property) Heat flows spontaneously from the hotter object to the colder one Celsius scale - created considering water's boiling and freezing points Kelvin scale - created so that 0K is the lowest possible attainable zero (absolute zero) The Kelvin and Celsius scales use the same-sized units around a different zero Derived SI Units - obtained by the multiplication or division of one or more base units

Note Taking Guide 1.3

Subject: 
Algebra
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Measurement
Units of measurement
Conversion of units
Metrication
Systems of units
Scale
Economic graph
Weighing scale
Misleading graph

01.03 Units and Graphs Essential Questions After completing this lesson, you will be able to answer the following questions: How do you use units and convert them to understand and solve problems? How are units of measurement chosen and interpreted in formulas? How do you choose and interpret scales on graphs and data displays? Main Idea (page #) DEFINITION OR SUMMARY EXAMPLE Choosing Units of Measure (pg. 2) A good rule of thumb to use is that when measuring something small, use a _____ unit of measure. When measuring something large, use a _____ unit of measure. To measure the length of a smartphone, use ____________. To measure the weight of an elephant, use _____. TIP: Make sure that the unit is not too large or too small to represent the measurement.

INT SCI physics review/basic unit study guide

Subject: 
Physics
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Science
Measurement
Fractions
Mathematics
Numeral systems
Systems of units
SI units
SI prefix
International System of Units
Trillionth
Billionth
Hypothesis
Technology
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review

Science Study Guide Metric Prefixes: Deka da ten Deci d tenth Hecto h hundred Centi c hundredth Kilo k thousand Milli m thousandth Mega M million Micro ? millionth Giga G billion Nano n billionth Tera T trillion Pico p trillionth Difference between theory and hypothesis: A scientific theory is a hypothesis that has been tested and proven Scientific method: a method used in gaining, organizing, and applying new knowledge Recognize a problem Make an educated guess (hypothesis) about the answer Predict the consequences of the hypothesis Perform experiments to test it Make conclusions Experimental Components: Independent variable: part of the experiment that is purposely manipulated
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