A: 30 September 2011 Objective: You will be able to: convert between scientific and regular...
-
Upload
arnold-oswin-cook -
Category
Documents
-
view
225 -
download
5
Transcript of A: 30 September 2011 Objective: You will be able to: convert between scientific and regular...
![Page 1: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/1.jpg)
A: 30 September 2011
Objective: You will be able to: convert between scientific and
regular notation convert between units of mass,
length and volume Do now: What unit do we use to
measure: a. Mass? b. Length? c. Volume?
![Page 2: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/2.jpg)
Agenda
I. Do nowII. Scientific notation notes and practiceIII. Conversion between units notes and
practiceIV. Exit ticketV. Homework work time?!?Homework: Week 4 Homework pages
1-4 due TuesdayLab Notebook due Tuesday
![Page 3: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/3.jpg)
Properties
Intensive: the property does NOT depend on the amount of stuff you have ex: temperature
Extensive: the property DOES depend on the amount of stuff you have ex: mass
Use your data to determine if density is an intensive property or an extensive property!
![Page 4: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/4.jpg)
Scientific Notation
602,000,000,000,000,000,000,000 The number of atoms of iron in this
beaker!
Scientific Notation: A way to effectively show and compare really large or really small numbers.
![Page 5: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/5.jpg)
Scientific Notation
8,000,000 = 8x106
0.00012 = 1.2x10-4
Integer must be 1≤x<10
Positive exponent: number > 1 Negative exponent: number < 1 (but >
0!)
![Page 6: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/6.jpg)
Practice
a) 4,500,000b) 3,950,000,000c) 230d) 230.e) 0.00000045f) -0.002g) 0.00781
![Page 7: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/7.jpg)
Convert to regular notation
a. 3.4x1012
b. 5.4x10-6
c. 1.2x103
d. 7.80x10-2
e. 1.20x10-8
f. 3.98x1010
g. 3x10-2
![Page 8: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/8.jpg)
Copy the number and rewrite in scientific notation or regular notation
a. 100,000b. -5,000,000c. 450,000,000,000d. 1,300e. 0.01f. 0.00 005g. -0.0 045h. 0.00 000 000 000 000
023
a. 2.3 x10-2
b. 1.99 x104
c. 9 x10-8
d. 6.505 x10-12
e. 1.00 x10-4
f. 4.55 x1015
![Page 9: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/9.jpg)
Remember…
A negative exponent is a tiny number but is bigger than 0 (NOT a negative number!)
A big positive exponent is a HUGE number.
A negative number can have either a positive exponent or a negative exponent.
![Page 10: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/10.jpg)
Round to three sig. fig. and express in scientific notation
a) 745,000b) 0.00054000c) 540,321,324d) 0.143589
![Page 11: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/11.jpg)
C: 3 October 2011
Take Out Homework: Week 4 p. 1 Objective: You will be able to:
convert between units of mass, length and volume
Do now: What unit do we use to measure: a. Mass? b. Length? c. Volume?
![Page 12: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/12.jpg)
Agenda
I. Do now (6 min.)II. Homework Check (5)III. SI units and prefixes notes (5)IV. Conversions examples (10)V. Conversions practice problems (10
min.)VI. Go over answers (5 min.)VII. Exit Ticket (10 min.)Homework: Week 4 pages 2-4: due Weds.
![Page 13: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/13.jpg)
Unit Conversions
![Page 14: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/14.jpg)
SI Units for Measurement
Quantity Unit Symbollength meter mmass gram gvolume liter Ltime second s
![Page 15: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/15.jpg)
Unit Prefixes
But what if it’s not practical to use a meter or a liter or a gram?
You want to measure something much smaller or larger?
![Page 16: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/16.jpg)
SI Unit Prefixes
Prefix Symbol Meaningkilo- k 1000(meter, liter, gram)centi- c 1/100milli- m 1/1000 So what does that mean?
1 meter = 100 centimeters 1 kilometer = 1000 meters
![Page 17: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/17.jpg)
Converting between units
Example 1: How many meters are equal to 5 kilometers?
Example 2: How many milliliters are equal to 75.0 liters?
Example 3: How many kilograms are equal to 2,500 grams?
![Page 18: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/18.jpg)
C: 5 October 2011
Take Out Homework: Week 4 p. 2-3 Objective: You will be able to:
convert between units of mass, length and volume
differentiate between physical and chemical properties and changes.
Do now: How many centimeters are equal to 4.50 meters?
![Page 19: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/19.jpg)
Agenda
I. Do now (6 min.)II. Homework Check (5)III. Conversions practice problems (10 min.)IV. Go over answers (5 min.)V. Exit Ticket (10 min.)VI. Chemistry, physical and chemical
changes and states of matterHomework: Week 4 page 4: Thurs.
Week 5 Homework page 1: Thurs.
![Page 20: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/20.jpg)
Homework Check
![Page 21: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/21.jpg)
Practice Problems
1 meter = 100 cm, 1 kilometer = 1000 meters
1. How many meters are equal to 500 centimeters?
2. How many centimeters are equal to 850 meters?
3. How many meters are equal to 37.5 kilometers?
4. How many centimeters are equal to 5.8 kilometers?
![Page 22: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/22.jpg)
Practice Problems
1 liter = 1000 milliliters1. How many liters are equal to 550
milliliters?2. How many milliliters are equal to 3.5
liters?3. How many liters are equal to 45,000
milliliters?4. How many milliliters are equal to
354 liters?
![Page 23: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/23.jpg)
Exit Ticket
![Page 24: A: 30 September 2011 Objective: You will be able to: convert between scientific and regular notation convert between units of mass, length and volume.](https://reader031.fdocuments.us/reader031/viewer/2022020106/56649db35503460f94aa3a55/html5/thumbnails/24.jpg)
Next PowerPoint!