Measurements

Scientific Notation
Significant Figures
Accuracy and Precision
Sources of Errors
100

This is the SI unit of length.

meter
100

Write 500,000 in scientific notation.

5 × 10⁵

100

How many significant figures are in 0.00560?

3

100

What do you call a measurement that is very close to the true or accepted value?

Accurate measurement

100

This type of error occurs consistently and is associated with faulty equipment or technique.

Systematic Error


200
What are the 7 SI Base Units?

Meter, Kilogram, Second, Kelvin, Mole, Candela, Ampere

200

Convert 3.2 × 10⁻⁴ to standard form.

0.00032

200

Zeros between non-zero digits: Significant or not significant?

Significant

200

True or False: It is possible to be accurate without being precise.

True

200

This type of error occurs randomly and affects the precision of measurements.

random error

300

Convert 3.5 kilometers to meters.

3,500 meters

300

Write 0.0075 in scientific notation.

7.5 × 10⁻³

300

Round 45.6789 to 3 significant figures.

45.7

300

A student measures 4.5, 4.6, 4.4, but true value is 6.0. Accurate or precise?

precise but not accurate

300

This kind of error can be minimized through repeated trials and averaging results.

random error

400

Convert 5000 milligrams to grams.

5g

400

Multiply (2 × 10³)(3 × 10²) in scientific notation.

6 × 10⁵

400

Which has more significant figures: 3.040 or 3.0040?

3.0040

400

Compute for the arithmetic mean of the following measurements: 8cm, 10cm, 12cm, 14cm, 16cm?

12

400

A miscalibrated thermometer that always reads 2°C too high is an example of this type of error.

systematic error

500

How many seconds are in 2.5 hours?

9000 s

500

Add (6 × 10⁶) + (2 × 10²)

6.0002 x 106

500

Multiply 4.56 × 1.4 using proper sig figs.

6.4

500

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

500

A student reading a volume from the top of the meniscus instead of the bottom is committing what kind of error

parallax error

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