Chapter 1: Problem 41
Write the abbreviation for each of the following units: a. milligram b. deciliter c. kilometer d. picogram e. microliter f. nanosecond
Short Answer
Expert verified
a. mg, b. dL, c. km, d. pg, e. µL, f. ns
Step by step solution
01
Milligram
Identify the abbreviation for milligram. 'Milli' is a prefix indicating one thousandth (1/1,000) and 'gram' is a unit of mass. The abbreviation is 'mg'.
02
Deciliter
Identify the abbreviation for deciliter. 'Deci' is a prefix indicating one tenth (1/10) and 'liter' is a unit of volume. The abbreviation is 'dL'.
03
Kilometer
Identify the abbreviation for kilometer. 'Kilo' is a prefix indicating one thousand (1,000) and 'meter' is a unit of length. The abbreviation is 'km'.
04
Picogram
Identify the abbreviation for picogram. 'Pico' is a prefix indicating one trillionth (1/1,000,000,000,000) and 'gram' is a unit of mass. The abbreviation is 'pg'.
05
Microliter
Identify the abbreviation for microliter. 'Micro' is a prefix indicating one millionth (1/1,000,000) and 'liter' is a unit of volume. The abbreviation is 'µL'.
06
Nanosecond
Identify the abbreviation for nanosecond. 'Nano' is a prefix indicating one billionth (1/1,000,000,000) and 'second' is a unit of time. The abbreviation is 'ns'.
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Key Concepts
These are the key concepts you need to understand to accurately answer the question.
Units of Measurement
Units of measurement are standardized quantities used to express and compare physical properties like mass, volume, and length.
These include grams, liters, and meters.
Each unit has a specific purpose and is standardized for accuracy.
In the metric system, common units of measurement include:
These include grams, liters, and meters.
Each unit has a specific purpose and is standardized for accuracy.
In the metric system, common units of measurement include:
- Gram (g): used to measure mass.
- Liter (L): used to measure volume.
- Meter (m): used to measure length.
Metric Prefixes
Metric prefixes are used to modify base units by powers of ten to make quantities easier to understand and work with.
They help to scale units up or down by factors of ten.
Some common metric prefixes include:
They help to scale units up or down by factors of ten.
Some common metric prefixes include:
- Milli-: Indicates a factor of one thousandth (1/1,000). For example, 1 milligram (mg) is 0.001 grams.
- Deci-: Indicates a factor of one tenth (1/10). For example, 1 deciliter (dL) is 0.1 liters.
- Kilo-: Indicates a factor of one thousand (1,000). For example, 1 kilometer (km) is 1,000 meters.
- Pico-: Indicates a factor of one trillionth (1/1,000,000,000,000). For example, 1 picogram (pg) is 0.000000000001 grams.
- Micro-: Indicates a factor of one millionth (1/1,000,000). For example, 1 microliter (µL) is 0.000001 liters.
- Nano-: Indicates a factor of one billionth (1/1,000,000,000). For example, 1 nanosecond (ns) is 0.000000001 seconds.
Scientific Notation
Scientific notation is a method of writing very large or very small numbers conveniently by combining coefficients and powers of ten.
It simplifies calculations and makes the data more manageable.
In scientific notation, a number is expressed as:
\(\text{{Number}} = \text{{Coefficient}} \times 10^{\text{{Exponent}}}\)
For example:
It simplifies calculations and makes the data more manageable.
In scientific notation, a number is expressed as:
\(\text{{Number}} = \text{{Coefficient}} \times 10^{\text{{Exponent}}}\)
For example:
- A nanosecond (ns) can be written as \(1 \times 10^{-9} \text{{ seconds}}\).
- A kilometer (km) can be written as \(1 \times 10^{3} \text{{ meters}}\).
- A picogram (pg) can be written as \(1 \times 10^{-12} \text{{ grams}}\).