Download presentation

Presentation is loading. Please wait.

1
**SI UNITS & METRIC CONVERSIONS**

UNIT II.2 & II.3 PPT SI UNITS & METRIC CONVERSIONS

2
**II.2 SI UNITS SI = International system of metric units.**

Base unit = basic unit of measurement (all other units are multiples of base units or combinations) 1. BASE UNITS length = metre (m) mass = gram (g) time = seconds (s) amount of substance = mole (mol)

3
**II.2 SI UNITS 2. MULTIPLES OF BASE UNITS kilo = k (103)**

centi = c (10-2) milli = m (10-3) **Table on page 17 – KNOW** 3. IMPORTANT EQUIVALENCES 1 mL = 1 cm3 1 m3 = 103 L 1 t = 103 kg

4
**II.2 SI UNITS Example: Re-write the expression “6 kilograms” using**

PREFIX and UNIT SYMBOLS an EXPONENTIAL EQUIVALENT The prefix symbol that stands for kilo is ___ and the unit symbol that stands for grams is ___ 6 kilograms = The exponential equivalent to kilo is ____ Questions: p.19 #11-14

5
II.3 METRIC CONVERSIONS Metric conversions involve using unit conversions between prefix symbols and exponential equivalents. Example: Write a conversion statement between cs and s. ‘c’ stands for _____ then Questions: p.19 #15 (odds)

6
**II.3 METRIC CONVERSIONS Example: How many millimeters are in 5 km?**

Unknown amount = Initial amount = Conversion factors = Combine conversion factors to make connection: Solution

7
II.3 METRIC CONVERSIONS Diagram (p. 20) – how prefix symbols relate to a central base unit:

8
**II.3 METRIC CONVERSIONS Example 1: Express 7µm in Megametres.**

Example 2: (p.21 #16e) If 1 dL = 10-1 L and 1 kL = 103 L, how many decilitres in 0.5kL?

9
**II.3 METRIC CONVERSIONS DERIVED QUANTITIES Derived quantity = **

Questions: p. 21 #16,17,18,24,28 DERIVED QUANTITIES Derived quantity = Derived unit = Example on p. 23 Question: p. 21 #29

10
**II.3 METRIC CONVERSIONS Example 3: Convert 1cg/ mL into dg/L Unknown:**

Initial: Conversion factors = Solution:

11
ASSIGNMENT

Similar presentations

OK

Metric Conversions, Scientific Notation, and Dimensional Analysis.

Metric Conversions, Scientific Notation, and Dimensional Analysis.

© 2018 SlidePlayer.com Inc.

All rights reserved.

To make this website work, we log user data and share it with processors. To use this website, you must agree to our Privacy Policy, including cookie policy.

Ads by Google

Ppt on c language fundamentals worksheets Ppt on non verbal communication skills Ppt on our environment of class 10 free download Ppt on value of pie in math Ppt on principles of peace building support office Ppt on steam reforming of ethanol Ppt on non farming activities Ppt on mars one finalists Encyclopedia ppt one time presentation Free download ppt on festivals of india