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Data logger
- 2. WHAT IS DATA LOGGER ??? A data logger (also datalogger or data recorder) is an electronic device that records data over time or in relation to location either with a built in instrument or sensor or via external instruments and sensors. Increasingly, but not entirely, they are based on a digital processor (or computer).
- 3. PRESSURE
- 4. ENGAGE
- 5. ANSWER
- 6. EMPOWER SMALL GIVES MORE !!! AIM To study the effect the surface area on pressure PROBLEM How is the surface are affecting the pressure ? APPARATUS 10ml syringe, 20ml syringe, rubber tube, retort stand, and pressure sensor
- 7. PROCEDURE 1. Arrange the apparatus as shown in the diagram
- 8. 2. Press both syringe together by using same force 3. Record the value of pressure Procedure
- 10. EMPOWER RESULT
- 11. EMPOWER RESULT
- 12. EMPOWER RESULT
- 13. EMPOWER RESULT
- 14. EMPOWER RESULT
- 15. DISCUSSION question Based on the result from the tablets and graphs above, explain the relationship between the surface area and the pressure exerted ??? The value of pressure (kPa) is influenced by the surface area. Smaller size of syringe (10 ml) exerts greater pressure compared to bigger size of syringe (20 ml). As a conclusion, the smaller the surface area, the greater the value of pressure exerted.
- 16. DISCUSSION question Compare the air pressure exerted on the 10 ml of syringe and 20 ml of syringe. The pressure exerted on 10 ml syringe is greater than 20 ml syringe. For example, the value of pressure for 10 ml syringe at 13s is 188.266 kPa compared to 20 ml syringe is 152.61 kPa
- 17. ENHANCE Ryan does feel pain when he sits on a single nail instead of sits on many nails. What is the explaination of this situation ?
- 18. ANSWER Sit on a single nail will produce higher pressure. This will cause pain to our back. The smaller the surface area, the higher the pressure exerted. Sit on the many nails will produce lower pressure. So, our back didn’t feel pain. The higher the surface area, the smaller the pressure exerted.