3.1 VOCAB
WHat does Energy mean???????
Is defined as the capacity to do work or produce heat
WHat does joule mean?????????????????????????????????????????????????????????????
is the SI unit of energy and is named after English physicist James Prescott Joule (1818-1889).
• conversion factor
is a ratio of equivalent measurements
accuracy
is a measure of how close a measurement is to the correct or accepted value of the quantity being measured
percent error
is the absolute value of the error divided by the accepted value and multiplied by 100%.
WHat does Kinetic energy mean???????????????????????????????
is the energy due to motion
WHat does weight mean?????????????????????????????????????????????????????????????
is a measure of force that is equal to the gravitational pull on an object
Dimensional analysis
is a technique that uses the units (dimensions) of the measurement in order to correctly solve problems.
• accepted value
of a measurement is the true or correct value based on general agreement with a reliable reference
How is Density calculated
dividing the mass by the volume
WHat does temperature mean?????????
is a measure of the average kinetic energy of the particles in matter
WHat does liter mean?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????
is the volume of a cube that measures 10 cm (1 dm) on each side.
derived unit
is a unit that results from a mathematical combination of SI base units.
significant figures
in a measurement consist of all the certain digits in that measurement plus one uncertain or estimated digit.
is it necessary to be able to count the number of significant figures
Yes
WHat does scientific notation mean??????????????????????/
is a way to express numbers as the product of two numbers
WHat does measurement mean??????????????????????????????????????????????????????????????????
is a quantity that includes both a number and a unit.
Density
is the ratio of the mass of an object to its volume.
Precision
is a measure of how close a series of measurements are to one another
What does error mean
an experiment is the difference between the experimental and accepted values.
WHat does International System of Units (SI) mean
is a system of measurement based on the metric system
The energy due to motion
Kinetic energy
is a unit that results from a mathematical combination of SI base units.
derived unit
experimental value
of a measurement is the value that is measured during the experiment
experimental value
a measurement is the value that is measured during the experiment