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A zero error is the reading that an instrument gives when it is measuring nothing. It can also appear as a constant error in all measurements. For example, you cannot measure accurately from the end of a ruler because there is a little bit that sticks out beyond the zero point. Kitchen scales usually need to be zero-ed before use. My car's speedometer does not go below 5 mph so even when parked, the instrument says I'm moving!
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What would happen to your number system if there was no zero?
no 'Divide By Zero' errors. WOOT!!
What is the advantage of taking the lowest mark on the main scale as the zero mark over the center-zero?
The advantage of taking the lowest mark on the main scale as the zero mark over the centre-zero is that it covers for all the errors that may happen.
What errors in your technique could cause the line not to go through zero?
Some of the reasons are: Systematic measurement errors. Random measurement errors. Poor use of equipment. Recording errors. Calculation errors. Poor plotting. Wrong model.
How would you write the numeral 0.00000000006 in words?
Zero point zero zero zero zero zero zero zero zero zero zero six.
How do you write out 1000000 in word form?
One million. One zero zero zero zero zero zero.
