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PS-1.3 Scientific Measurement
Test Description: Identify proper procedure for reading measurements from scientific instruments
Instructions: Answer all questions to get your test result.
1) When you read scientific instruments (like a meter stick or graduated cylinder) you must:
A
always use the measurement system of the country in which you are working.
B
make sure your reading matches the readings of others in your class.
C
round off your reading to the nearest whole number and record it in metric units.
D
use the correct number of decimals and record the measurement in the appropriate metric units.
2) The measurement scale on a scientific instrument should be read
A
with the last digit being estimated.
B
to the nearest 1/100th.
C
to the nearest whole number.
D
to the nearest 10th.
3) To read a measurement from a graduated cylinder, you
A
hold the cylinder at eye-level and read from the top of the meniscus.
B
hold the cylinder at eye-level and read from the bottom of the meniscus.
C
look down from the top and read the lowest mark the liquid touches.
D
look down from the top and read the highest mark the liquid touches.
4) An example of measurement data (data obtained through the use of a scientific instrument) is
A
a litter of 3 puppies.
B
sky-blue feathers with white tips.
C
5.05 cm.
D
6 openings on each side.
5) Which of the following statements is correct?
A
The accuracy of a result is the degree to which it agrees with the true value.
B
Accuracy is always more important than precision.
C
You cannot have precise measuements if they are not accurate.
D
If the same error occurs in repeated trials of an experiment, precision will be affected but not accuracy.
6) The unit of volume in the metric system is
A
degree Kelvin.
B
the meter.
C
the liter.
D
the kilogram.
7) An instrument that can be read to the hundredths place is
A
more precise than one that can be read to the thousandths place.
B
less precise than one that can be read to the tenths place.
C
more precise than one that can be read to the tenths place.
D
less precise than one that is read to the ones place.
8) How many grams are there in a kilogram?
A
100
B
10
C
1000
D
10,000
9) How many centimeters are there in a meter?
A
1000
B
100
C
10
D
10,000
10) How many mililiters are there in a liter?
A
1000
B
100
C
10,000
D
10
*select an answer for all questions
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