Unit 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| accuracy | how close a measured value is to an accepted value
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| buoyancy | the ability to float or tendency to float in water or other liquid
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| colloid | a heterogeneous mixture composed of tiny particles suspended in another material
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| dimensional analysis | a systematic approach to problem solving that uses conversion factors to move from one unit to another
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| extensive property | a physical property, such as mass, length, and volume, that is dependent upon the amount of substance present
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| heterogeneous mixture | one that does not have a uniform composition and in which the individual substances remain distinct (IE chicken noodle soup)
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| homogeneous mixture | one that has a uniform composition throughout and always has a single phase; also called a solution
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| intensive property | a physical property that remains the same no matter how much of a substance is present
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| physical property | a characteristic that can be observed or measured without changing the sample’s composition
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| precision | how close a series of measurements are to one another
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| scientific notation | a system for reporting very small or very large numbers by writing the number as a decimal number between 1 and 10, multiplied by a power of 10
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| Significant figures | a convention for recording measurements. Measurements are rounded so that they contain only the digits up to and including the first uncertain digit, when the number is written in scientific notation.
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| suspension | type of heterogeneous mixture whose particles settle out over time and can be separated from the mixture by filtration
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| Tyndall effect | the scattering of light by colloidal particles
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| Viscosity | a measure to fluids resistance to flow
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| compressibility | The ability to be compressed. A characteristic of substances, such as gases, that can be compressed to fit into smaller containers.
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
pdscience
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