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).
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
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.
