Collect Graph Analyse Les Black Mobile 027-2211365 www.electroflash.co.nz
David was a physics teacher, who:• Wrote software for PASCO.• Created “Graphical Analysis”.• Wanted to make datalogging available & affordable for all.• Makes probes for many datalogger companies.• Uses teachers to develop & test products.• Makes the most reliable and useful datalogging systems. David and Christine Vernier
• USB connect•Loggerlite Software•Click & log Loggerlite
Install probe – auto recognition! Press start (adjust settings if necessary) Stop (graph will auto scale) Analyse (on colour screen or on computer) Totally portable …. Rechargeable battery …. Save files to the logger Full graphical analysis …. Colour screen LoggerPro
Collect data on Labquest Save data file into LabQuest Connect to a computer. Connection will be recognised and data downloadedConnect to computer andautomatically download file. Or try the Wireless Dynamic System.
Enter your data manually or via a logger then….Manual analysis Predict relationship from graph shape Change the power of a variable Convert to a linear graph y=mx + cSoftware modeling Get LoggerPro to do it for you. Eg Analyse / curve fit / define relationship Error bars– YES! percentage, absolute, variable LoggerPro
Experiment manuals • Written by teachers for the US education system. • Supplied with disk of files in Word format (great for cutomising for our schools). • Each experiment has a file in LoggerPro which sets up data collection automatically
Experiments with dataloggers .• Biology – “Cell Respiration video”• Chemistry – “Acid-BaseTitration video”• Physics – “Ball Toss video” From Vernier support disk All experiments in the manuals link to a file in LoggerPro software to automatically set up the collection rate & graph(s).
• Prediction (drawing graph patterns)• Graph matching (walk the graph)• Comparisons• Defining a relationship• Voice printing (and FFT)• Interactive demonstrations• Video analysis• Use as an oscillosope & frequency generator
• Why do voices sound different when singing the same note?• How can I accurately measure the speed of sound?• Would an adult or a baby suffer from hypothermia first?• How effective is penguin behaviour in keeping each other warm?• How quickly do streams cool in cold air temperatures?• Does the temperature of a fridge vary throughout a day?• What clothing fabrics best protect us from heat loss?• What rides give us the greatest acceleration?• What substances are the most radioactive?• How can I show standing waves?• How do transpiration rates differ between plants?
• Appeal to many students• Remove the boredom of some measurements.• Improve accuracy of measurements• Improve analysis• Enable some measurements to be made (that couldn’t be done in any other way).• Makes results real and immediate• Tufts University research + interactive demonstrations * Outcomes * Strategies