SI Measurements

1.1 Measurements

by Brooke Manley

​Accuracy & Precision

​Accuracy: How correct the measurement is

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​Precision:

• ​How specific the measurement is 

• How consistent multiple measurements are to each other.

Multiple Choice

It is a measure of how close measurements come to each other when they are made in the same way

• Accuracy
• Precision
• Error
• Extrapolation

Multiple Choice

This bullseye demonstrates...

• High Accuracy & High Precision
• High Accuracy & Low Precision
• Low Accuracy & High Precision
• Low Accuracy & Low Precision

Multiple Choice

How close a measurement is to the accepted value is called..

• Accuracy

• Precision

• Significant

• Estimate

Multiple Choice

Describe the accuracy and precision of the image

• Accurate and Precise
• Accurate and not precise
• Not Accurate and Precise
• not accurate and not precise

Multiple Choice

Which Student is the most Precise?

• Alex

• Shandra

• Luis

​SI Units

SI System

• ​the system used by scientists around the world to make measurements

Multiple Choice

SI stands for ___.

• Sports Illustrated

• Scientific Notation

• International System (of measurements)

• Instructional System (of measurements)

​SI Units

Length

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Mass

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​Time

​

​Temperature

Multiple Choice

What is the SI unit for length?

• meter
• liter
• mass
• second

Multiple Choice

What tool measures liquid volume?

• graduated cylinder

• metric ruler

• triple-beam balance

• thermometer

Multiple Choice

What is the length of the comb?

• 8 cm 
• 3 cm 
• 5 cm 
• 7 cm 

Multiple Choice

What is volume?

• how much space something takes up
• the amount of matter in an object
• a synonym for weight
• how much density an object has

Multiple Choice

What is the mass on the triple beam balance? 

• 290.2 g
• 292 g
• 290.5 g
• 295.2 g

Multiple Choice

What is the symbol for kilogram?

• kg
• s
• mol
• m

Multiple Choice

Where do we read the level of liquid in a graduated cylinder?

• The highest point the liquid touches
• The bottom of the meniscus
• Half way between, we make an educated guess and round it

Multiple Choice

What is the SI unit for mass?

• kilograms 
• meters
• pounds
• liters

Multiple Choice

The SI unit for temperature is __?__.

• degree fahrenheit  (° F)
• degree celsius  (° C)
• kelvin  (K)
• degree centigrade  (°C)