standards of measurement. not my own power point, taken from...
TRANSCRIPT
![Page 1: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/1.jpg)
Standards of Measurement
![Page 2: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/2.jpg)
Standards of MeasurementNot my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1-2)+Standards+of+measurement.p...
![Page 3: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/3.jpg)
Standard: • Look at this roll of string:
• 150 what? 150 ft? 150 cm? 150 m?• Measurement = Number + Unit• Standard unit: what all people agree on and
understand.
150
![Page 4: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/4.jpg)
System of Measurement
English System• USA• ft, mile, pound…
Meter System• Most of the world.• m, kg, cm, N…• The basis for the SI
International System of Units (International Bureau of Weights & Measurements in Sevres, France)
Both systems are equally accurate.
![Page 5: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/5.jpg)
![Page 6: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/6.jpg)
![Page 7: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/7.jpg)
![Page 8: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/8.jpg)
![Page 9: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/9.jpg)
Page 16
![Page 10: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/10.jpg)
Measuring Distance (Length):• Length is the distance between two points.• SI base unit for length is m• We need to use different unites sometimes:
– cm for things like a pencil– Km for long distances like between RAK and Dubai.
• Remember:– 1m = 100 cm– 1Km = 1000 m– 1cm = 10 mm– 1dm = 10 cm
![Page 11: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/11.jpg)
Measuring Volume• Volume: the amount of space occupied by an
object. • You’ll learn how to measure the volume of:1.Regular solids, like a cube. 2.Liquids.3.Irregular solids, like a pencil or a crown.
Ms. Rania Abdelbaqi - IAT/RAK
![Page 12: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/12.jpg)
1. Volume of regular solids:
Ex: a cube
V = l x w x h = 5 cm x 5 cm x 5 cm = 125 cm3
Where cm3 is a volume unit.
![Page 13: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/13.jpg)
2. Volume of liquids:
-By graduated cylinders.-Most common units are 1 mL = 1 cm3 1 L = 1 dm3 - Ex: how many cubic centimeters are in 1.5L? (check your note book for the answer)
![Page 14: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/14.jpg)
3. Volume of irregular solids:These are the things that don’t have regular
sides to measure.
Their volume can be measured by water displacement method. (→ next slide)
![Page 15: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/15.jpg)
1.Read the volume of
water before immersing
the crown in water.
2000 mL2300 mL
2. Read the volume of
water after immersing
the crown in water.
3. The difference in the water volume,
is the volume of the crown. (300 mL)
![Page 16: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/16.jpg)
Measuring Mass• Mass: How much matter in an object.• Units: kg, g, mg, ….• Remember:
1 kg = 1000 g1g = 1000 mg
• Example: how many kilograms are in 6430 mg? (check your copy book for the answer)
![Page 17: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/17.jpg)
• Density: is the mass per unit volume.
Density =
• What is the density of an object having a mass of 10g and a volume of 2 cm3 ?
Density = = 5 g/cm3
The unit of density is g/cm3
Volume
Mass
32
10
cm
g
![Page 18: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/18.jpg)
![Page 19: Standards of Measurement. Not my own Power Point, taken from scienceplanet.wikispaces.com/file/.../(1- 2)+Standards+of+measurement.p](https://reader036.vdocuments.us/reader036/viewer/2022062517/56649ef65503460f94c09674/html5/thumbnails/19.jpg)