1 / 17

Physical Science

Physical Science. Unit 2 – Scientific Measuring. I. Measuring & Things We Can Measure. An observation that records the amount of something with specific units attached to the answer. distance between 2 points. amt of space an object can hold or take up. amount of heat being released.

vashon
Download Presentation

Physical Science

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. Physical Science Unit 2 – Scientific Measuring

  2. I. Measuring & Things We Can Measure An observation that records the amount of something with specific units attached to the answer distance between 2 points amt of space an object can hold or take up amount of heat being released amt of matter in a given object A. Definition of Measuring:______________ ____________________________________ B. What are different types of measurements we can make? 1. Length ____________________________ 2. Volume ___________________________ 3. Temperature_______________________ 4. Mass ______________________________

  3. This is a much older system of measurement, derived from common things found in nature. Mainly, the USA only! (Liberia & Myanmar use it sparingly) II. Two Major Measuring Systems Left in This World A. English System: 1.Description:_________________________ ______________________________________ ______________________________________ 2. Where is it used in the world?________ _____________________________________

  4. Ounce Pound (16 oz = 1 lbs Ton (2,000 lbs = 1 ton Fluid ounce Cup (8 fl oz = 1 cup Quart (4 cups = 1 qt Gallon = 4 qt = 1 gal 3. Common units in the English System for: a. Mass: 1. __________________________ 2. __________________________ 3. __________________________ b. Volume: 1. _________________________ 2. _________________________ 3. _________________________ 4. _________________________

  5. Farhenheit (32 ˚F = 0 ˚ C inch Foot (12 in = 1 ft) Yard (3 ft = 1 yd) Mile (5,280 ft = 1 mi) c. Temperature: 1. _________________________ d. Length: 1. _________________________ 2. _________________________ 3. _________________________ 4. _________________________

  6. Much easier system to use when trying to convert unit b/c it is based on the number 10! Everywhere else except for USA B. Metric System 1.Description:_________________________ ______________________________________ ______________________________________ 2. Where is it used in the world? __________ ______________________________________

  7. milliliter centiliter deciliter liter dekaliter hectoliter kiloliter 3. Common units in the Metric System: Volume

  8. milligram centigram decigram gram dekagram hectogram kilogram Mass

  9. millimeter centimeter decimeter meter dekameter hectometer kilometer Length

  10. Celsius Temperature

  11. 0.001 m 1,000 mm = 1 m 0.01 m 100 cm = 1 m 0.1 m 10 dm = 1 m 10 m 1 m = 0.1 dam 100 m 1m = 0.01 hm 1,000 m 1 m = 0.001 km IV. Converting From One Metric Unit to Another Metric Unit A. Ratios in the Metric System (using meter as the example, but this can work for gram and liter too!) 1 millimeter = _______ or _________________ 1 centimeter = _______ or _________________ 1 decimeter = _______ or _________________ 1 dekameter = _______ or _________________ 1 hectometer = _______ or _________________ 1 kilometer = _______ or _________________

  12. = 2.5 L ? mL B. Using Dimensional Analysis to convert from one metric measurement to another Example: How many milliliters are in 2.5 liters? Steps to solve: 1.Substitute “How many” with a question mark. 2 .Write the abbreviation for the unit you are trying to find. 3. Substitute “are in” with an equal sign. 4. Write the abbreviation for unit you are given.

  13. x _____ L 5. Your goal is to have the units on both sides of the equal sign to match. To do this, create a factor line and place the unit that you are given on the bottom of the fraction. ? mL = 2.5 L

  14. 1,000 mL 1 6. Look on your reference sheet for an equation that has both units involved in the problem. Match the correct number with the correct unit! ? mL = 2.5 L x _________ L

  15. = 2.5 (1,000 mL) 1 = 2,500 mL 7. Simplify the problem. ? mL = 2.5 L x _1,0000 mL 1 L

  16. 8. SOMETIMES……you might have to make more than one factor line to get units on both sides to match!

  17. Example Problems 0.34 mg = ____________ g 101 m = ____________ cm 3,200 l = ____________ kl 1,560 cg= ____________ mg 16 cm = ____________ dm

More Related