Unit 4, Chapter 10 CPO Science Foundations of Physics Chapter 9.
Gas Laws: Hands-on Discovery Welcome!. Who is CPO Science? Developer and publisher of inquiry-based...
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Transcript of Gas Laws: Hands-on Discovery Welcome!. Who is CPO Science? Developer and publisher of inquiry-based...
![Page 1: Gas Laws: Hands-on Discovery Welcome!. Who is CPO Science? Developer and publisher of inquiry-based science curriculum and hands-on materials How many.](https://reader036.fdocuments.in/reader036/viewer/2022062802/56649ea35503460f94ba7b9d/html5/thumbnails/1.jpg)
Gas Laws:Hands-on Discovery
Welcome!
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Who is CPO Science?
• Developer and publisher of inquiry-based science curriculum and hands-on materials• How many have heard of CPO Science?• Sample materials at your table – PLEASE LEAVE FOR OTHER WORKSHOPS – WE CAN MAIL SAMPLES – Thanks very much!
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How is CPO Science Different?• We design and manufacture high quality
science equipment and INCLUDE IT with purchase of textbook sets
• We support guided inquiry through extensive teacher support material and reader-friendly texts
• We offer strong science content that is a blend of conceptual and quantitative approaches.
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What Subject Areas?• High School: Physical Science, Earth/Space
Science, Physics First, CP Physics• Middle School: Earth, Life, Physical• Visit the booth• Request samples with raffle forms at end of
workshop
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Now for the fun!
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Press and hold GO button to turn on the DataCollector
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Plug the pressure sensor into Sensor 1 port
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Choose Data Collection
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Push GO!
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Meter View
Press 101.53 (KPA)
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Check out table and graph views by clicking on these tabs
Press 101.53 (KPA)
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What is a kPa, or kilopascal?
• A pascal (Pa) = 1 N/m2
• 1 kPa = 1000 Pa• Standard atmospheric pressure = 101,325 Pa• Or 101.325 kPa
• What does your pressure sensor read for standard atmospheric pressure?
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Make a prediction
• Suppose you connect a syringe to the pressure sensor.
• What would you have to do with the syringe to make the pressure increase? How would you make the pressure decrease?
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What would you have to do with the syringe to create this graph?
Time (s)
Pres
sure
(kPa
)
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Connect a syringe to the pressure sensor
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Create this graph!
Time (s)
Pres
sure
(kPa
)
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Design your own experiment
• Boyle’s law states that there is a mathematical relationship between pressure and volume that always equals a constant value.
• The relationship is either:
P×V or P
V
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Collect Data
• Find the pressure at these volumes• 10, 12, 16, 18• Graph pressure vs. volume by hand• What is the constant value?
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Predict
• Use your data to predict the pressure at 14 mL.• Try it and see how close your prediction was.
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Investigate Charles’s Law
Go towww.cposcience.com
For EducatorsWorkshop PowerPoint
PresentationsCharles’ Law
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How much can you change the air pressure in an empty plastic bottle by squeezing the bottle with one hand?
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Explain, using Boyle’s law, what happens to the balloon inside the bottle when you pull down on the
flexible bottom of the bottle.
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What does this model have to do with lungs and breathing?
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Predict: Does the pressure in the bottle increase or decrease when you pull down
on the flexible bottom?
What % change in pressure do you expect?
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Use your pressure sensor and DataCollector to collect data on how the
bottle pressure changes. Compare the results to your prediction.