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AJH Measurement Test

Alexis Hall Measurement Test

QuestionAnswer
What is a measurement? Something that describes the world using numbers
What are the types of measurements? Distance, time, speed, volume, mass
Distance, time, speed, volume, and mass describe what? Measurements
What is an approximated measurement based on pervious experience is what? estimation
Estimations are useful when? When actual measurement is not easily made.
What can estimation help you check? To see if the answer is reasonable
When you estimate, what do you do? Use the word about
What is precision? It is a description of how close measurements are to each other.
What is a description of how close measurements are to each other? precision
What is used to discuss number of decimal places a measurement device can measure precision
Why are degree of precision more precise today? It is because today's technology has made measuring devices are more precise.
What is accuracy? It is a comparison of measurement to actual value.
What do you call a comparison of measurement to actual value. Accuracy
Why are accuracy and precision important? It is a comparison of measurement to actual values
Measurements can be rounded when when precision is NOT needed.
When precision is NOT needed in measurements, what are you allowed to do? You can round them off
What are significant digits? They reflect true precession of a calculation
What does a true precession of a calculation reflect? significant digits
Multiplication and division-measurements with the fewest digits determines the what? number of the significant digits
Multiplication and division-measurements with the WHAT determines the number of the significant digits? fewest digits
Addition and subtraction- significance is determined to the what? place value of the LEAST precise measurement.
The place value of the LEAST precise measurement is found where? Addition and subtraction
The international system of units is called what? SI
Si units are in multiples of ten, provide a standard measurement for what? Global science, business, and industry
Si units are in multiples of WHAT? Ten
What units are in multiples of 10? SI units
What is the distance between two points? Length
Length is the what? Distance between two points
SI units are in what? meters
What would you use to measure a pencil? Centimeters
How would you measure the distance between New York and Chicago? Kilometeres
What is volume? The amount of space of an object takes up
What is the volume of something using SI units? mL or Cm3
mL or Cm3 can be used for what? volume of something using SI units
How do you find the volume of something that has a regular shape? Measure its length, width, and height and multiply.
How do you find the volume of something that has a regular shape? L x W x H
What do you immersion for? To find a volume of an irregular shape
To find a volume of an irregular shape what do you do? Use immersion
What is the amount of matter in an object? Mass
What is mass? It is the amount of matter in an object
What SI unit do you use to measure mass? kilograms
What is the measurement of force? Gravity (weight)
What SI unit measures gravity? Newton
A Newton is a measurement of what? Gravity
What do you use to measure kinetic energy in particles of matter? Temperature
Temperature can measure what? kinetic energy in particles of matter
What SI unit is used to measure kinetic energy in particles of matter? Kelvin
What is rate? The amount of change of one measurement given
What is the amount of change of one measurement given? Rate
What are tables? They display information in rows and columns for easier comprehension.
What are used to display information in rows and columns for easier comprehension? Tables
What is a graph? It collects, organizes, and summarizes data visually
What is used to collect, organize, and summarize data visually Graph
What is a line graph? It shows the relationship between two variables
What shows the relationship between two variables? Line graph
What is a bar graph? It shows bars of different sizes to show relationships between variables.
What type of graph shows the whole percentage? Circle
What is a circle graph? It shows the whole percentage
What shows bars of different sizes to show relationships between variables. Bar Graph
Scales on graphs must be carefully constructed and analyzed so users easily understand the information. What is that key? K H D M D C M
K= ˚C+273˚
˚C = K -273˚
Created by: marcrobertdillon
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