Si units scientific notation
This presentation is the property of its rightful owner.
Sponsored Links
1 / 8

SI Units & Scientific Notation PowerPoint PPT Presentation


  • 63 Views
  • Uploaded on
  • Presentation posted in: General

SI Units & Scientific Notation. Miss Witkowski. What is the SI System?. All systems of weights and measures, metric and non-metric, are linked through a network known as the International System of Units .

Download Presentation

SI Units & Scientific Notation

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.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Si units scientific notation

SI Units & Scientific Notation

Miss Witkowski


What is the si system

What is the SI System?

  • All systems of weights and measures, metric and non-metric, are linked through a network known as the International System of Units.

  • The International System is called the SI, using the first two initials of its French name Système Internationald'Unités.


Why do we use it

Why do we use it?

  • This system is used because the scientific world is international

  • It allows an easier way of communicating internationally and makes converting problems less complicated


Base standard units

Base/Standard Units

  • You typically use the following units when referring to a particular measurement

    • Length: meter (m)

    • Mass: kilogram (kg) (amount of matter)

    • Weight:Newton (measure of gravitational force)

    • Time: seconds (s) or minutes

    • Temperature: Celsius (C)/ Kelvin(K)

    • Area: square meter (m2)

    • Volume: cubic meter (m3) and liter (L) (1 m3 = 1000 L)

    • Density: kilogram per cubic meter (kg/m3) or gram per mL (g/mL) (1000 kg/m3 = 1 g/mL)


Scientific notation

Scientific Notation

  • This is a shorter method to express very large numbers

  • Scientific Notation is based on powers of the base number 10


How to write a number in scientific notation

How To Write a Number in Scientific Notation:

  • Put the decimal after the first digit and drop the zeroes(must be between 1 and 9)

    123,000,000,000 Becomes 1.23

  • To find the exponent count the number of places from the decimal to the end of the number.

  • In 123,000,000,000 there are 11 places. Therefore we write 123,000,000,000 as: 1.23 x 1011


Positive and negative exponents

Positive and Negative Exponents

  • If a decimal is moved to the left (became smaller), the exponent is positive

    • 34,000,000,000,000= 3.4 x 1013

  • If a decimal is moved to the right (became larger), the exponent is negative

    • 0.000000000294 = 2.94 x 10-10


Terminology

Terminology

  • The number 273,000,000,000 in scientific notation is written as :

    Base

    2.73 x 1011 Exponent

    Coefficient


  • Login