14.00 o9.3 l black
DESCRIPTION
Physikos 3: L BlackTRANSCRIPT
Collect
Graph
Analyse
Datalogging with Vernier
Fantastic!
Les BlackMobile 027-2211365
www.electroflash.co.nz
Meet the Verniers
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
Go! Series
• USB connect
•Loggerlite Software
•Click & log
Loggerlite
LabQuest Mini
- interface
LabQuest mini interface
Sensor
LoggerPro
software
LoggerPro
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 screenLoggerPro
LabQuest
- a totally portable logger
Or try the Wireless Dynamic System.
Collect data on Labquest
Out of the classroom …remote logging
Save data file into LabQuest Connect to a computer.
Connection will be recognised
and data downloadedConnect to computer and automatically download file.
Analysis of data
LoggerPro
Just
fabulous!
Error bars– YES! percentage, absolute, variable
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 + c
Software modeling
Get LoggerPro to do it for you. Eg Analyse / curve fit / define relationship
Support MaterialExperiment 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
Support examples
All experiments in the manuals link to a file in LoggerPro software to automatically set up the collection rate & graph(s).
Strategies to deepen learning• 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
Interesting questions! ….. and student designed investigations.
• 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
Are dataloggers value for money?
And now for some ….
Interesting applications!
Spectrophotometer SVIS-Plus - For spectral analysis
Gas discharge tube
Emission spectra
Magnetic Field- Magnetic field through a slinky carrying a current
• Shape of field• Variation of B with current• Turns density
…. etc
Is Acceleration related to thrill level?
Check these out using an accelerometer!
Rotational Dynamics- Rotational inertia of various shapes
Outcome: Get the angular velocity- time graphs directly!
Standing waves using the LabQuest’s output to drive a speaker and string in oscillation.
Standing waves, modes of vibrations and wave speed
Light Sensor- Inverse square Law
- Light and reflection and heat absorption
Sound waves
Sound from a tuning fork
Using FFT to analyse a sound into its component frequencies
Standing waves and speed of sound experiments
Also excellent for BEATS
• Detection (alpha, beta and gamma)
• Spectrum of emission levels
• Effectiveness of Shielding
• Decay curve
• Identification of radioactive materials
Radioactivity