Vocabulary
How close a measurement is to the accepted value is ?
Accuracy
Precise word descriptions.
Qualitative data
How many significant digits are in 345m?
3
What is 34,000,000 mm in scientific notation?
3.4 x 10^7 mm
What is the place value of the estimated digit in 367cm?
1s place
The difference between each measurement and the average is ?
Random error
Used to indicate precision of a measurement.
Significant digits
How many significant digits are in 243, 300 m?
4
What is 545,000,000 m in scientific notation?
5.45 x 10^8 m
What is the place value of the estimated digit in 765.94 m?
hundredths place (0.01)
The exactness of a measurement.
Precision
Numerical measurements.
Quantitative data
How many significant digits are in 0.0034 L?
2
What is 0.0000045 L in scientific notation?
4.5 x 10^-6 L
What is the volume of a rectangular solid object with the dimensions: length: 4 cm, width: 2cm, height, 3 cm?
24 cm^3
The difference between the measured value and accepted value that is off in the same direction by the same amount.
Systematic error
The force of the earth's gravity acting on an object's matter that changes with location.
Weight
How many significant digits are in 4.5 x 10^3 m?
2
What is 0.000030 m in scientific notation?
3.0 x 10^-5 m
What number are the prefixes in the metric system based?
10
The size and name of a dimension that has a value of one.
Unit
The metric system of measurements was created to have standardized ____?
Units of measure
How many significant digits are in 0.00340 m?
3
What is 847,000,000,000 g in scientific notation?
8.47 x 10^11 g
Do measurements always fall on scale markings?
No