Measurements
Color is an example of what kind of data?
Qualitative
Metric prefixes are based on powers of ...
ten
When a measurement doesn't fall on a scale division, you must ___ the final digit
estimate
Convert 0.0078450 m to scientific notation
7.8450 x 10^-3 m
What is the SI unit for matter?
kg
What form of measurement will change with a solid object's change in location? Why?
weight, because gravity changes
Measurement is comparing the dimension of interest to a ___
standard
The system of internationally accepted units is known as this.
SI
In a metric measurement, the final digit should be estimated to ____ of the smallest decimal subdivision.
0.1
Convert 40000 to scientific notation
4.0 x 10^4 m
True or False: Every scientific measurement contains some error
True
The best way to find the volume of a cube that is 10 cm on a side?
perform a calculation using the volume formula
17th & 18th century science was difficult because ___ were not standardized.
measuring units
Units that are combinations of SI base units.
Derived units
If a measurement is precise, it is also accurate. (True or False.)
False
Convert 10 cm to scientific notation
1.0 x 10^1 cm
What is the formula for the volume of a rectangular solid?
length x width x height = volume
T or F. Measurements do not usually fall exactly on scale markings.
True
A unit always has a value of ...
one
Convert 3567 mm to meters.
3.567 meters
Causes of errors in measurement.
Markings not fine enough.
Environmental conditions.
Instrument defective.
Instrument read incorrectly.
How many significant digits are in 4800?
2
I ran out of questions ....so what is considered God's perfect number?
7
How many significant digits: 0.00230
3
Is the meter stick we use in class considered a "standard"? Explain
No. It's length may change. It is based on a standard.
Convert 43 cm to meters
0.43 meters
When a measurement is always off by the same amount, the measuring process shows a ...
systematic error
How many significant digits are in 2.004?
4
List 4 ways to measure matter.
Weight, mass, volume, density
How many significant digits are in 901.0?
4