The Digits Not all of them are significant The Powerful Powers of Ten Units How to navigate and stay sane The Properties of a Measurement Measurements HOW WIDE IS THE TABLE UNITS Measurements ID: 1048710
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1. Measurements and UnitsObjectives:The Digits: Not all of them are significant!The Powerful Powers of TenUnits: How to navigate and stay sane The Properties of a Measurement
2. MeasurementsHOW WIDE IS THE TABLE?
3. UNITSMeasurementsNUMBERHOW WIDE IS THE TABLE?
4. POWERS OF TENMeasurements101001,00010.10.010.00110-7
5. POWERS OF TENMeasurementsQ1. How many powers of Ten in 0.0001?10 4 10-4 10 510-5
6. MeasurementsSCIENTIFIC NOTATION326 ft32.6 x 10 ft3.26 x 100 ft3.26 x 102 ft
7. MeasurementsSCIENTIFIC NOTATION326 ft32.6 x 10 ft3.26 x 100 ft3.26 x 102 ft238,7851,000,3451.20.13890.0890.0040
8. MeasurementsSCIENTIFIC NOTATION326 ft32.6 x 10 ft3.26 x 100 ft3.26 x 102 ftWhy would we want to use it?(a) 3.00 x 102 ft(b) 3.0 x 102 ft(c) 3 x 102 ft(d) DON’T KNOWQ2. How can we write 300 ft in scientific notation?
9. MeasurementsSCIENTIFIC NOTATION326 ft32.6 x 10 ft3.26 x 100 ft3.26 x 102 ftPrecisionWhy would we want to use it?Clarity
10. MeasurementsSIGNIFICANT DIGITSIn decimal notation:SOME ZEROS DO NOT COUNT!At the end of whole numbers (unless marked!)9500234
11. MeasurementsSIGNIFICANT DIGITSIn decimal notation:Between the decimal point and the first non-zero digit on the rightAt the end of whole numbers (unless marked!)95002340.0034504SOME ZEROS DO NOT COUNT!
12. MeasurementsSIGNIFICANT DIGITSIn decimal notation:Between the decimal point and the first non-zero digit on the rightAt the end of whole numbers (unless marked!)95002340.0034504In scientific notation: ALL DIGITS9.5x1039.50x1039.500x103SOME ZEROS DO NOT COUNT!
13. MeasurementsSIGNIFICANT DIGITSIn decimal notation:Between the decimal point and the first non-zero digit on the rightAt the end of whole numbers (unless marked!)95002340.0034504In scientific notation: ALL DIGITS9.5x1039.50x1039.500x1033.450x10-3SOME ZEROS DO NOT COUNT!
14. MeasurementsSIGNIFICANT DIGITS232.3x1018,7858.785x1031,000,3451.000345x1061.201.2x1000.013891.389x10-20.0898.9x10-20.00404.0x10-32302.3x10-22302.30x10-2
15. Measurements: UnitsLENGTHMASSTIMETEMPERATURE
16. Measurements: UnitsPREFIXESSMALLBIGCenti (c)Kilo (K)Milli (m)Mega (M)Micro (μ)Giga (G)Nano (n)Tera (T)
17. Conversion of UnitsCONVERSION OF UNITShttps://play.google.com/store/apps/details?id=org.wopnersoft.unitconverterUNIT CONVERTER (Android)UNITS (iPad)https://itunes.apple.com/us/app/units-free-unit-converter/id284574017?mt=8
18. Conversion of Units32 ft/s2? m/s22000 lbf (pound force)? N (Newtons)25.8 in? mm (millimeter)34 MWh (Megawatt-Hour)? J (Joule)0.3 Acre? Yd2 (Square Yard)$100? GBP (British Pound)CONVERSION OF UNITS
19. P2. Write each number in scientific notation(a) 312 (b) 434,234 (c) 0.0257P1. How many powers of ten?(a) 10,000 (b) 0.00004 (c) 1Measurements: DIYP3. Write each number in decimal notation(a) 8.30x103 (b) 2.21x10-2 (c) 5.5x10-4P4. How many significant digits are there?9.20x103 (b) 0.0210 (c) 5300(d) 1,005 (e) 6.0710x10-2
20. P2. Convert 9.8 m/s2 into(a) mi/hr2 (b) ft/s2 (c) in/s2P1. Convert 65 mi/h into (a) km/s (b) ft/hr (c) in/sUnits: DIYP3. How many significant digits are in the following measurements?(a) 8.310x103 (b) 0.027x10-2 (c) 5.5x10-4P4. What are the following in terms of base unit? The palm of your hand is 25 cm Your computer CPU speed is 2.0 GHz My laptop has memory of 4.0 MB The noise level is at 80 dB