1 / 13

Chapter 1 Lesson 3 (cont.)

Chapter 1 Lesson 3 (cont.). “How to Use the S.I. System”. Introduction. mg. Unit measured. Prefix. gram. milli. I. Length. A. Def – the distance between 2 points 1. base unit = meter 2. Examples a. meter, millimeter, hectometer. Length Example. Convert:

xalvadora-kieva
Download Presentation

Chapter 1 Lesson 3 (cont.)

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. Chapter 1Lesson 3 (cont.) “How to Use the S.I. System”

  2. Introduction mg Unit measured Prefix gram milli

  3. I. Length A. Def – the distance between 2 points 1. base unit = meter 2. Examples a. meter, millimeter, hectometer

  4. Length Example Convert: a. 5.0032 meters  cm = 500.32 cm b. .0034 km  mm = 3400 mm c. 4567 dm  decameters = 45.67 decameters

  5. II. Volume (derived unit) A. Def. – the amount of space occupied 1. formula: length X width X height 2. base unit = liter (liquids); meter (solids) a. **1 cm3 = 1 ml** 3. solids are always cubed (cm3, m3) 4. for liquids, use container dimensions to calculate volume 5. is a derived unit which means it is obtained by combining SI units

  6. Volume Example A liquid is poured into a container. If the dimensions of the container are 45 ml, 54 ml, and 80 ml what is the volume of the liquid in ml3?  194,400 cm3 The sides of a box are 45 cm, 54 cm, and 0.4 dm. What is the volume of the box in cm3?  9,720 cm3

  7. III. Mass A. Def. – the amount of matter in an object 1. base unit = gram 2. kilograms is used frequently 3. ex: golf ball vs. table tennis ball

  8. Mass Example Convert: a. 54 g  kg .054 kg b. 3.002 kg  mg 3,002,000 mg

  9. IV. Density (derived unit) A. Def. – Mass per unit of volume 1. formula: density = mass / volume 2. derived unit of mass and volume

  10. Density Example What is the density of an unknown metal that has a mass of 178.0 grams and a volume of 20.0 mL? ***Remember D=M/V***  8.9 grams/mL Will this object float in water??? (1.0 g/ml)

  11. V. Time and Temperature A. Def. – Time is the interval between two events. 1. Base unit = second B. Def. – Temperature is the amount of heat contained in a substance 1. Base unit = Kelvin/Celsius

  12. Temperature Scales a. Celsius Scale – used for most scientific work i. 0 = freezing point of water ii. 100 = boiling point of water iii. 20 = room temperature iv. 37 = body temperature b. Kelvin scale i. 0 on the Kelvin Scale is absolute zero (-273 C.) ii. to convert Celsius to Kelvin add 273 K iii. to convert Kelvin to Celsius subtract 273 K

  13. Temperature Example The outside temperature is 29 degrees Celsius. What is it in Kelvin?  302 Kelvin A person has a temperature of 313 Kelvin. Does this person have a fever?  yes; the body temp is 40 deg C.

More Related