measurement a way to describe the world with numbers
TRANSCRIPT
![Page 1: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/1.jpg)
Measurement
• A way to describe the world with numbers.
![Page 2: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/2.jpg)
Measurement• Can answer:• How much, how long, or how far?
![Page 3: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/3.jpg)
Everyday Measurements
![Page 4: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/4.jpg)
Tools of Measurement
• Stopwatches
• Meter-sticks
• Balances
• Thermometers
![Page 5: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/5.jpg)
Metric System
![Page 6: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/6.jpg)
International System (SI)
• The SI system is the accepted system of measurement.
• Units are in multiples of 10.
Which of these do not belong in the metric system?
![Page 7: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/7.jpg)
Metric System
• We use these prefixes the most:• kilo• centi• milli
kilo hecto deca
Base unit
meter
gram
liter
deci centi milli
1000 100 10 1 .1 .01 .001
![Page 8: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/8.jpg)
Converting Units
![Page 9: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/9.jpg)
Length
• Meter is basic unit.
![Page 10: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/10.jpg)
Length
• 1000 meters = kilometer
![Page 11: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/11.jpg)
Length
![Page 12: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/12.jpg)
Length• Use a centimeter to measure the
length of a pencil.
![Page 13: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/13.jpg)
Length
• 1 inch = 2.54 cm
![Page 14: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/14.jpg)
Length
• 100 centimeters in a meter.
![Page 15: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/15.jpg)
Length
• 1000 millimeters in a meter.
![Page 16: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/16.jpg)
Converting Units Length
![Page 17: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/17.jpg)
Mass• Amount of matter in
an object.
• More matter = more mass.
• Kilogram (kg) is used for large objects.
• Gram (g) for small objects.
Triple Beam Balance
Electronic Balance
![Page 18: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/18.jpg)
Mass• Mass is the same no matter where in
the universe the object is located.• Weight = pull of gravity.
![Page 19: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/19.jpg)
Converting Units: Mass
![Page 20: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/20.jpg)
Weight
• Gravity exerts force on an object.
• More mass = greater weight
• Weight changes depending on location.
• Unit = newtons (N)
![Page 21: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/21.jpg)
Weight
• A brick & sponge have the same volume.
• Brick has more mass so, it weighs more.
![Page 22: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/22.jpg)
Weight
![Page 23: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/23.jpg)
Volume
• Amount of space something occupies.
• L x W x H
![Page 24: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/24.jpg)
Volume
Height of box = 2Width = 3Length = 62 x 3 x 6 = 3636 cubes like the red one would take up the same amount of space as this box.
![Page 25: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/25.jpg)
Volume of Solids
• Unit is meters cubed• cm3
• L X W x H
![Page 26: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/26.jpg)
Liquid Volume
• Liters & milliliters are the units.
• Meniscus is the curve at the surface of a liquid.
• Read at lowest point.
![Page 27: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/27.jpg)
Volume of Irregular Shaped Solids
• Use water displacement.
• liters or mL rather than cm3
![Page 28: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/28.jpg)
Converting Units Volume
![Page 29: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/29.jpg)
Converting Units (Volume)• 45 mL = 4.5 centiliters cL)• 45 mL = .45 deciliters (dL)• 45 mL = 0.045 liters (L)• 45 mL = 0.0045 dekaliters (dkL)• 45 mL = 0.00045 hectoliters (hL)• 45 mL = 0.000045 kiloliters (kL)
kilo hecto deca
Base unit
meter
gram
liter
deci centi milli
![Page 30: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/30.jpg)
Temperature
• How hot or cold a substance is.
• We use degrees Celsius ºC.
![Page 31: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/31.jpg)
Temperature
• Water freezes at 0º C.
• Water boils at 100º C
![Page 32: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/32.jpg)
Measuring Temperature
![Page 33: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/33.jpg)
Density
• Amount of matter in a given volume.
• measure mass & volume of an object to find density.
• Unit = g/mL3
![Page 34: Measurement A way to describe the world with numbers](https://reader035.vdocuments.us/reader035/viewer/2022062314/56649ecf5503460f94bdccbb/html5/thumbnails/34.jpg)
Density