Accuracy vs Precision
This is the closeness of a value to the accepted value.
What is accuracy
This is the SI base unit of measure for mass.
What is a kilogram.
These are the digits in a measurement that are statistically significant.
What is significant figures.
This is the measure of hotness or coldness of an object.
What is temperature.
Calculate the following using the proper number of significant numbers;
17.6+8.32
What is 25.9
This is the ability to produce results that are similar in value.
What is precision
This is the SI base unit for temperature.
What is Kelvin.
How many significant figures are in the number 0.052306
What is 5 significant figures.
This is the capacity to do work or produce heat.
What is energy.
Calculate the density of an object whose mass is 23 grams, that was added to 20mL of water, with a final volume of 22.5
What is M/V=23g/22.5mL -20mL= 9.2 g/mL
Are the following measurements accurate, precise, both or neither? The accepted value is 2.5
1.27m, 1.28m, 1.31m and 1.30m
These measurements are precise, as they are close in proximity, but they are not accurate as they are not near the accepted value.
Write a relationship comparing the prefix centi- to the base unit.
A centi- is one hundredth of a base unit.
When taking a measurement that can be measured to the ones value, what place value should your measurement be taken to?
What is the tenths value.
A ratio of equivalent measurements.
What is a conversion factor.
Using proper sig figs, calculate 3.00/1.5.
What is 2.0
An individual throws a group of darts close to the bullseye, are the throws accurate, precise, both or neither?
What is both accurate and precise.
This is the amount of heat required to raise the temperature of 1 g of pure water by 1o C
What is a calorie.
Round 14.589 to 3 significant figures.
What is 14.6
This is a measure of the pull on a given mass by the Earth’s gravity.
What is gravity.
If 1.1 qt = 1 L, calculate how many liters are in 7.7 quarts?
What is 7 liters
In a few words, describe the differences between accuracy and precision.
Accuracy is the proximity to the accepted value, while precision is the proximity to the other measured values.
This is the measurement of the amount of a substance.
What is a mole.
Display the measurement 1760 feet using 2 significant figures.
What is 1.8x103 feet.
This is a way to analyze and solve problems, using the units of a measurement.
What is dimensional analysis.
If 2.54 cm = 1 in, calculate how many meters are in 10 feet.
What is 3.1 meters.