Measuring Volume - PowerPoint PPT Presentation

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Measuring Volume

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Volume of Liquids Reading a Meniscus Measuring Volume by Water Displacement Used for irregular shaped ... We will only be using rectangular prisms V = L x W x H ... – PowerPoint PPT presentation

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Title: Measuring Volume


1
Measuring Volume
2
What is Volume?
  • Volume is defined as the amount of space
    something takes up.
  • SI units for volume is the liter (L)
  • Other units to use are milliliter (mL) and cubic
    centimeters (cm3).
  • 1000 mL 1 L
  • 1 mL 1 cm3

3
Ways to Find Volume
  • 3 Ways to Find Volume
  • Liquids
  • Irregular Shaped Objects
  • Regular Shaped Objects

4
Finding Volume of Liquids
  • Graduated Cylinders are often used to find the
    volume of liquids.
  • Graduated Cylinders are long and cylindrical
    making it easy to find volume.
  • A curve is created by the liquid when in a
    graduated cylinder known as a meniscus.

5
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6
Finding Volume of Liquids
  • 4 Steps to reading a graduated cylinder.
  • Place it on a flat surface.
  • Read at eye level.
  • Read at the bottom of the meniscus.
  • Identify the units on the graduated cylinder.

7
Volume of LiquidsReading a Meniscus
8
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9
Measuring Volume by Water Displacement
  • Used for irregular shaped objects
  • Select a graduated cylinder large enough to put
    the object in
  • Add enough water to completely cover the object.
  • Record the volume.

10
Adding Object
  • SLOWLY add the object to be measured
  • Read the new level of the water
  • The water will rise an amount equal to the volume
    of the object

11
What not to do
12
Heres what the cylinder should look like
13
Do the math
  • Final volume of water original volume of water
    volume of object
  • 22.5 mL - 17.4 mL   5.1 mL
  • Therefore, the volume of the object by
    displacement is 5.1 mL

14
Volume of Regular Shaped Objects
  • Regular Shaped Objects
  • Rectangular Prisms
  • Triangular Prisms
  • Spheres
  • Cylinders
  • Use the correct equation to solve.
  • We will only be using rectangular prisms
  • V L x W x H

15
Examples
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