KS3 ICT | Data logging - electronic devices that record data

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ICT Quiz - Data Logging 02 (Questions)

See how much you know about data logging in this enjoyable KS3 ICT quiz. A data logger 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. The time between the moments that the data logger records the data it is collecting is called the logging interval. The logging interval varies and depends on what data you want to collect and the purpose for which it is collected. An example of this would be measuring the temperature changes in an environment over the course of a day. Taking readings every second would result in a lot of data. Taking readings once every hour would not give a smooth curve. Also, if one reading was somehow inaccurate, it would have a greater effect on the results. Taking a reading every ten minutes would therefore be more suitable.

Data logging has several important advantages.

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If the logging period is long, a datalogger will not lose concentration, unlike a person. It will reliably take a reading at the exact moment it is supposed to, a person may be a little in advance or late. When the logging interval is very short, e.g. one tenth of a second, it would be impossible for a person to note the results. With a data logger, that is not a problem.

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Data logging takes place over a length of time called a .......

[ ]	logging interval
[ ]	logging period
[ ]	logging slot
[ ]	time slot

The logging period should be ....... to collect enough data.

[ ]	a time determined by what is being monitored
[ ]	no more than five seconds
[ ]	very long to collect all possible data
[ ]	very short to get as much data as possible

The time gap between measurements is called the .......

[ ]	data period
[ ]	logging interval
[ ]	measurement period
[ ]	time interval

The logging interval of a clinical thermometer might be .......

[ ]	one day
[ ]	one hour
[ ]	one month
[ ]	one year

The logging interval of a car braking system might be .......

[ ]	0.01 seconds
[ ]	1 second
[ ]	1 minute
[ ]	10 minutes

Data logging is useful in locations .......

[ ]	where it is extremely cold
[ ]	on the sea floor
[ ]	in a desert
[ ]	All of the above

Data logging is useful because .......

[ ]	it can take place without people being present
[ ]	it is reliable and does not break down
[ ]	it requires a means of storing data
[ ]	it uses sensors to measure the environment

Automatic data loggers are more accurate than people .......

[ ]	when recording data where the logging interval is short
[ ]	when recording data where the logging interval is long
[ ]	when the logging period is very long
[ ]	None of these

Which is not an advantage of data logging?

[ ]	Data can be collected at very short intervals
[ ]	Data can be collected over very long time periods
[ ]	Data is recorded accurately
[ ]	Data loggers must always be connected to a computer

10.

Which is the best description of data logging?

[ ]	Collection and storing of bytes
[ ]	Collection and storing of data
[ ]	Collection and storing of information
[ ]	Collection and storing of logs

ICT Quiz - Data Logging 02 (Answers)

Data logging takes place over a length of time called a .......

[ ]	logging interval
[x]	logging period
[ ]	logging slot
[ ]	time slot

A data logger has a built-in timer

The logging period should be ....... to collect enough data.

[x]	a time determined by what is being monitored
[ ]	no more than five seconds
[ ]	very long to collect all possible data
[ ]	very short to get as much data as possible

The time period has to be appropriate for the situation

The time gap between measurements is called the .......

[ ]	data period
[x]	logging interval
[ ]	measurement period
[ ]	time interval

Also called the sampling interval

The logging interval of a clinical thermometer might be .......

[ ]	one day
[x]	one hour
[ ]	one month
[ ]	one year

It depends upon what is sensible in the circumstances, but checking a person's temperature every hour should be good enough to check if they are getting better or worse

The logging interval of a car braking system might be .......

[x]	0.01 seconds
[ ]	1 second
[ ]	1 minute
[ ]	10 minutes

Car brakes are usually applied for just a few seconds

Data logging is useful in locations .......

[ ]	where it is extremely cold
[ ]	on the sea floor
[ ]	in a desert
[x]	All of the above

In other words, where it is difficult for people to work or live

Data logging is useful because .......

[x]	it can take place without people being present
[ ]	it is reliable and does not break down
[ ]	it requires a means of storing data
[ ]	it uses sensors to measure the environment

Automatic data loggers mean people can do other jobs while the data is being collected

Automatic data loggers are more accurate than people .......

[x]	when recording data where the logging interval is short
[ ]	when recording data where the logging interval is long
[ ]	when the logging period is very long
[ ]	None of these

When the logging interval is less than a few seconds, it can be quite hard or even impossible for people to record data accurately

Which is not an advantage of data logging?

[ ]	Data can be collected at very short intervals
[ ]	Data can be collected over very long time periods
[ ]	Data is recorded accurately
[x]	Data loggers must always be connected to a computer

Data loggers only need to be connected to a computer when someone wants to process the data

10.

Which is the best description of data logging?

[ ]	Collection and storing of bytes
[x]	Collection and storing of data
[ ]	Collection and storing of information
[ ]	Collection and storing of logs

A data logger does not usually process the data, that is normally done by software on a computer