Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

BJU Chemistry Ch 3

Bob Jones Chemistry - Chapter 3

accuracy A numerical evaluation of how close a measurement is to an accepted value; the measurement of error.
base unit One of seven units in the SI that measures a basic dimension from which all other metric dimensional units are derived. They are the meter, kilogram, second, kelvin, mole, ampere, and candela.
conversion factor A ratio that is constructed from the relationship between two units and is equal to 1.
derived unit Any mathematical combination of the base units. The SI contains 22 derived units.
dimension Any measurable property of the physical universe.
graduated Accurately subdivided into measurement units.
measurement The act of comparing an unknown quantity to a standard; a number that indicates quantity and is followed by a unit.
metric system Any measuring system in which units are related to each other by multiples of 10.
percent error A quantity derived from a method that compares the magnitude of the measurement error with the size of the measurement.
precision A quantitative evaluation of the exactness of a measurement or measuring instrument; the fineness of a scale's subdivisions.
scale A means of measuring that is subdivided into units of measurement.
SI The metric system adopted by the scientific community.
significant digit A digit that indicates a measurement's precision. Significant digits consist of all the certain digits plus one estimated digit.
unit A label used to specify a measurement's dimension, such as "inch" or "meter".
unit conversion Multiplication of a measurement by a conversion factor.
Created by: heidio