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Vocabulary
Significant Figures Rules and Why
Calculations
Random
Metric System
100
the difference between the accepted value and the experimental value
What is error?
100
all the digits that can be known precisely in a measurement plus a last estimated digit.
What is significant figures?
100
the volume of a room where the height is 25.05 m, the width is 102 m, and the length is 22.3
What is 5.7 x 10^4 m^3?
100
the difference between accepted value and experimental value
What is accepted value is the correct value based on reliable references and the experimental value is the value that is measured in the lab.
100
0.0703 meters to cm
What is 7.03 cm?
200
the closeness of a measurement to the true value of what is being measured.
What is accuracy
200
27.59 meters
What is an example of a nonzero significant figure rule?
200
you have $19,456 dollars, how many quarters do you have?
What is 77,824 quarters?
200
five base unites used most commonly by chemists
What are the meter, kilogram, kelvin, the second and the mole.
200
8.23 seconds to milliseconds
What is 8230 milliseconds?
300
describes the closeness of a set of measurements taken under the same conditions
What is precision?
300
40.509 centimeters
What is an example of zeros appearing between nonzero digits?
300
calculate the percent error of the measured density of the sample that is 8.3g/mL with the actual density of the sample being 8.96g/mL.
What is 7.366%
300
the force that measures the pull on a given mass which is a measure of the quantity of mater.
What is weight
300
7.678 liters to microliters
What is 7,678,000 microliters?
400
the mass of an object divided by the volume of the object.
What is density?
400
they help to get the most accurate answer to a problem when calculating an error, they help to make the final outcome more comparable.
What is the importance of significant figures?
400
2.03 mL of gold to grams of gold (density of gold = 19.3g/cm3)
What is 39.2g of gold?
400
the quantity of heat that raises the temperature of 1g of pure water by 1 degree Celsius.
What is the calorie?
400
9.745 centimeters to nanometers
What is 97450000 nanometers?
500
a ratio of equivalent measurements used to convert a quantity from one unit to another.
What is a conversion factor?
500
23 people
What is an unlimited number of significant figures
500
a cheetah can run 112 km/hr, what is its speed in m/sec?
What is 31.1m/sec?
500
how many seconds are in a 35 hour work week? in a full week?
What is 126,000 seconds/35 hours & 604,800 seconds/week
500
189 nanometers to picometers
What is 189000 picometers?