SI Units/Tools/ Measurement
What is the symbol for the SI unit meter?
m
The number or item that appears most often in a data set.
how to we measure mass?
with a scale in grams
A type of graph that compares data using bars is called a _________
Name two different SI units.
Meter, Kilogram, Second, ampere, kelvin, mole, candela.
Define median and mean.
Median - the middle number in a data set when the data are arranged in numerical order.
Mean - the average of a data se. Sum of numbers divided by the number of items
What is the difference between weight and mass?
Weight depends on gravity and mass is constant
Information that is collected and represented on a graph is called _______
data
Name one scientific tool.
Science journal, rulers and metersticks, glassware, triple-beam balance, thermometer, computers, internet.
Which of the following words is a synonym for "mean?"
average
Which has more gravity, the moon or Jupiter? Why?
Jupiter because it is larger.
Data in the form of descriptions
What are notes, diagrams, photographs, or audio recordings
Why is it important for scientists to use the international System of Units?
The SI system allows scientists from different countries to use the same units of measurement, which enables easier sharing of information.
Find the mode of the data:
2.11, 3.2, 5.4, 3.3, 5.1, 3.3, 5.1, 3.2, 3.3, 5.0,
3.3
An antique shop owner wants to determine whether a ring is pure silver by using the water displacement method. What tools are needed?
scale,a liquid measuring cup, density element chart
a circle cut into pieces to show varying data in different sizes
What is a circle graph?
What most directly affects the precision of your measurements?
how carefully you measure and the tools you use
Find the mean of the data set.
9, 10, 13. 15. 17. 20. 21. 22. 22. 31.
18
What are the steps needed to measure the volume of the crown using the bucket
fill a bucket with 5 L of water
place the crown in the water
identify the volume that the top of the water reaches
substract 5 from the volume
Qualitative vs Quantitative explain
Qualitative data consist of words that describe how something looks, feels, sounds, or behaves
Quantitative data consist of numbers that come from counting or measuring each variable.