Measurements
This is the SI unit of length.
Write 500,000 in scientific notation.
5 × 10⁵
How many significant figures are in 0.00560?
3
What do you call a measurement that is very close to the true or accepted value?
Accurate measurement
This type of error occurs consistently and is associated with faulty equipment or technique.
Meter, Kilogram, Second, Kelvin, Mole, Candela, Ampere
Convert 3.2 × 10⁻⁴ to standard form.
0.00032
Zeros between non-zero digits: Significant or not significant?
Significant
True or False: It is possible to be accurate without being precise.
True
This type of error occurs randomly and affects the precision of measurements.
random error
Convert 3.5 kilometers to meters.
3,500 meters
Write 0.0075 in scientific notation.
7.5 × 10⁻³
Round 45.6789 to 3 significant figures.
45.7
A student measures 4.5, 4.6, 4.4, but true value is 6.0. Accurate or precise?
precise but not accurate
This kind of error can be minimized through repeated trials and averaging results.
random error
Convert 5000 milligrams to grams.
5g
Multiply (2 × 10³)(3 × 10²) in scientific notation.
6 × 10⁵
Which has more significant figures: 3.040 or 3.0040?
3.0040
Compute for the arithmetic mean of the following measurements: 8cm, 10cm, 12cm, 14cm, 16cm?
12
A miscalibrated thermometer that always reads 2°C too high is an example of this type of error.
systematic error
How many seconds are in 2.5 hours?
9000 s
Add (6 × 10⁶) + (2 × 10²)
6.0002 x 106
Multiply 4.56 × 1.4 using proper sig figs.
6.4
Given the data set:
4m, 6m, 8m, 10m, 12m
What is the standard deviation of the data set? (Round to two decimal places)
2.83m
A student reading a volume from the top of the meniscus instead of the bottom is committing what kind of error
parallax error