1 / 3

Units of Measurement

Units of Measurement. A measured quantity must have BOTH a number and a unit. The units most often used for scientific measurement are those of the metric system. In 1960 the International System of Units (SI units) was proposed as a replacement for the Metric System.

rhoswen-ledwidge
Download Presentation

Units of Measurement

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Units of Measurement • A measured quantity must have BOTH a number and a unit. • The units most often used for scientific measurement are those of the metric system. • In 1960 the International System of Units (SI units) was proposed as a replacement for the Metric System. • Système International = International System • The seven base units for the SI system are given below

  2. Common Prefix Multipliers in the SI System Prefix converts the base unit into a unit that is close to the size of the quantity being measured. Memorize these conversions

  3. Practice: Prefixes Use the prefixes or numbers to answer questions below. 1. Complete the following with metric prefix: • 103 gram = 1 ___ g b) 10-2 meter = 1 ___ m 2. Complete the following with a number: • 4.8 nanosecond = _________s • b) 1.5 microgram = ________ g 3. Which quantity is the smallest? 1 mg, 1 ng, or 1 pg?

More Related