Calculators | Science | Casio CFX 9850G/G+ - Introduction

Use of the Casio CFX 9850G/G+
Data Analyser (EA - 100) & Peripherals

By Dave Moulden & Chris Watts, Collie SHS
If you use or quote from the following publication, please acknowledge the authors above.

Introduction

• Casio CFX 9850G/G+
• Casio Data Analyser (EA - 100)
• Probes
• Authors' Notes

Casio CFX 9850G/G+

The Casio CFX - 9850G/G+ is a graphic calculator similar in function to most graphic calculators that are currently available to students.

They may be linked to one another through a short cable, which allows information to be transferred from one machine to another and between the calculator and data analyser.

Computer software and hardware [Casio Program - Link (FA - 122)] is also available for allowing communication between a Macintosh or PC and the calculator.

This makes the writing of programs much easier and allows the user to either download programs, data and/or graphs from the calculator to the computer or vice versa through the use of simple programs and a flexible cable.

There are an increasing number of programs available from the Internet, reference books and associated disks.

Casio Data Analyser (EA - 100)

The Casio Data Analyser (EA - 100) is a physical data collection device that can be used either in conjunction with the Casio CFX - 9850G/G+ or by itself.

This allows the automatic, semi - automatic or manual collection and recording of data, which can be analysed and interpreted by young scientists (and old ones too!).

Probes

A number of probes are available for the collection of various experimental variables. Some of these include:

Accelerometer Barometer Biology Gas Pressure Sensor Calorimeter Conductivity Probe Current and Voltage System Dissolved Oxygen Probe EKG Sensor

Heart Rate Monitor Light Sensor Magnetic Field Sensor Motion Detector Pasco Force Sensor pH Sensor Photogate Pressure Sensor

Relative Humidity Sensor Respiration Monitor Belt Smart Pulley Set Sound Capture Student Force Sensor Temperature Probe Thermocouple Voltage Probe

The Casio Data Analyser (EA - 100) comes with a temperature probe, light sensor and voltage probe. The other probes need to be purchased separately as required and/or funds allow.

Authors' Notes

We have found that, with just the three probes, quite a number of experiments can be carried out. Students are able to collect data using the Data Analyser, which they can then download into their calculators and analyse.

Alternatively, the teacher can conduct an experiment as a demonstration using the Data Analyser, the students then download the data into their calculators and analyse it.

A significant number of Physics and Chemistry experiments already exist which can be easily adapted and carried out in this manner.

We have used this approach with a number of the experiments found in the STAWA Chemistry Laboratory Manual, the Physics Investigations in Context Year 11 and Physics Investigations in Context Year 12 books.