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Title: BTEC Applied Science Unit 17 Assignment 5
Description: Unit 17: Electrical Circuits and their Applications – Assignment 5 Measurement Devices Task 1 Design a colourful poster listing the uses of the following measurement devices: Multimeter, data-logger, PH meter, temperature sensor and light meters This provides evidence for P7 Task 2 . Light meter Use a light meter to measure intensity of light at various places in the college. Present your results as a ‘bar chart’. This provides evidence for P7 Task 3 Analogue and digital devices 1.Carry out an experiment to investigate how the voltage across a 100 µF capacitor discharging through a 100 kΩ resistor changes with time using a digital voltmeter and an analogue voltmeter. Present your results in a table. Compare and contrast the use of these two meters. 2.Carry out an experiment to investigate the cooling of water using a digital temperature sensor and a mercury-in-glass thermometer. Present your results in a table. Compare and contrast the use of these two measuring devices. 3.Do not worry about the quality of your results in this experiment. Set the signal generator to a frequency of 0.2 Hz. Connect an analogue voltmeter across the output terminals and record in a table how the voltage changes with time. Repeat the experiment with a storage oscilloscope. Compare and contrast the use of the voltmeter and the oscilloscope in the monitoring the output from the signal generator. This provides evidence for M5 Task 4 How suitable is a data-logger? The data-logger is set to record the motion of an oscillating mass at the end of a spring. Discuss and analyse the suitability of the data-logger in this experiment. This provides evidence for D4 Exam board is Pearson ALL ASSIGNMENTS I HAVE UPLOADED ARE DISTINCTION GRADED.
Description: Unit 17: Electrical Circuits and their Applications – Assignment 5 Measurement Devices Task 1 Design a colourful poster listing the uses of the following measurement devices: Multimeter, data-logger, PH meter, temperature sensor and light meters This provides evidence for P7 Task 2 . Light meter Use a light meter to measure intensity of light at various places in the college. Present your results as a ‘bar chart’. This provides evidence for P7 Task 3 Analogue and digital devices 1.Carry out an experiment to investigate how the voltage across a 100 µF capacitor discharging through a 100 kΩ resistor changes with time using a digital voltmeter and an analogue voltmeter. Present your results in a table. Compare and contrast the use of these two meters. 2.Carry out an experiment to investigate the cooling of water using a digital temperature sensor and a mercury-in-glass thermometer. Present your results in a table. Compare and contrast the use of these two measuring devices. 3.Do not worry about the quality of your results in this experiment. Set the signal generator to a frequency of 0.2 Hz. Connect an analogue voltmeter across the output terminals and record in a table how the voltage changes with time. Repeat the experiment with a storage oscilloscope. Compare and contrast the use of the voltmeter and the oscilloscope in the monitoring the output from the signal generator. This provides evidence for M5 Task 4 How suitable is a data-logger? The data-logger is set to record the motion of an oscillating mass at the end of a spring. Discuss and analyse the suitability of the data-logger in this experiment. This provides evidence for D4 Exam board is Pearson ALL ASSIGNMENTS I HAVE UPLOADED ARE DISTINCTION GRADED.
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Unit 17- Assignment 5- P7
Light level
By looking at the bar chart, can see that the room with the greatest light level is B147
...
Measure the voltage of a capacitor-resistor network as
the capacitor discharge
...
The difference is that the analogue voltage drains even when it is not connected,
unlike the digital voltage
...
Whereas the analogue voltmeter has a fairly low resistance and take more energy
...
• Both analogue and
digital voltmeters are
connected in parallel
...
• An analogue voltmeter
as a fairly low
resistance
...
• An analogue voltmeter
moves a pointer across
a scale in proportion
to the voltage of the
circuit
...
Digital voltmeter
• Both analogue and
digital voltmeters have
a resistance
...
A digital voltmeter
uses very little energy
...
A digital voltmeter
shows the voltage on a
digital screen
...
•
Because of the high
resistance level of
digital voltmeters,
they give a more
accurate reading,
especially at higher
voltages
...
Circuit 2: Comparing digital and analogue thermometers
The temperature readings on both thermometers decrease at the same rate, however, the analogue
thermometer had a higher reading through most of the ten minutes
...
All you have to
do is put the
thermometer in the
water
...
There may
also be parallax error
when looking at an
angle
...
takes time to respond
to the temperature
change
...
An analogue
thermometer does
not measure above
100oC
...
Digital thermometer
Advantages:
This responds to the
temperature change
almost instantly
...
The metal
probe is also very
small in size
...
Disadvantages:
A digital thermometer
requires power, unlike
an analogue
thermometer
...
A digital thermometer
has to be calibrated to
keep accurate
readings
...
A voltmeter is an instrument used for measuring electrical potential difference between two points
in an electric circuit
...
Digital voltmeters give a numerical display of voltage by use of an analogue to digital
converter
Title: BTEC Applied Science Unit 17 Assignment 5
Description: Unit 17: Electrical Circuits and their Applications – Assignment 5 Measurement Devices Task 1 Design a colourful poster listing the uses of the following measurement devices: Multimeter, data-logger, PH meter, temperature sensor and light meters This provides evidence for P7 Task 2 . Light meter Use a light meter to measure intensity of light at various places in the college. Present your results as a ‘bar chart’. This provides evidence for P7 Task 3 Analogue and digital devices 1.Carry out an experiment to investigate how the voltage across a 100 µF capacitor discharging through a 100 kΩ resistor changes with time using a digital voltmeter and an analogue voltmeter. Present your results in a table. Compare and contrast the use of these two meters. 2.Carry out an experiment to investigate the cooling of water using a digital temperature sensor and a mercury-in-glass thermometer. Present your results in a table. Compare and contrast the use of these two measuring devices. 3.Do not worry about the quality of your results in this experiment. Set the signal generator to a frequency of 0.2 Hz. Connect an analogue voltmeter across the output terminals and record in a table how the voltage changes with time. Repeat the experiment with a storage oscilloscope. Compare and contrast the use of the voltmeter and the oscilloscope in the monitoring the output from the signal generator. This provides evidence for M5 Task 4 How suitable is a data-logger? The data-logger is set to record the motion of an oscillating mass at the end of a spring. Discuss and analyse the suitability of the data-logger in this experiment. This provides evidence for D4 Exam board is Pearson ALL ASSIGNMENTS I HAVE UPLOADED ARE DISTINCTION GRADED.
Description: Unit 17: Electrical Circuits and their Applications – Assignment 5 Measurement Devices Task 1 Design a colourful poster listing the uses of the following measurement devices: Multimeter, data-logger, PH meter, temperature sensor and light meters This provides evidence for P7 Task 2 . Light meter Use a light meter to measure intensity of light at various places in the college. Present your results as a ‘bar chart’. This provides evidence for P7 Task 3 Analogue and digital devices 1.Carry out an experiment to investigate how the voltage across a 100 µF capacitor discharging through a 100 kΩ resistor changes with time using a digital voltmeter and an analogue voltmeter. Present your results in a table. Compare and contrast the use of these two meters. 2.Carry out an experiment to investigate the cooling of water using a digital temperature sensor and a mercury-in-glass thermometer. Present your results in a table. Compare and contrast the use of these two measuring devices. 3.Do not worry about the quality of your results in this experiment. Set the signal generator to a frequency of 0.2 Hz. Connect an analogue voltmeter across the output terminals and record in a table how the voltage changes with time. Repeat the experiment with a storage oscilloscope. Compare and contrast the use of the voltmeter and the oscilloscope in the monitoring the output from the signal generator. This provides evidence for M5 Task 4 How suitable is a data-logger? The data-logger is set to record the motion of an oscillating mass at the end of a spring. Discuss and analyse the suitability of the data-logger in this experiment. This provides evidence for D4 Exam board is Pearson ALL ASSIGNMENTS I HAVE UPLOADED ARE DISTINCTION GRADED.