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Volume

Volume. Volume is the amount of space that an object takes up. Unlike LENGTH (1 dimension), or AREA (2 dimension), VOLUME is a 3 dimensional (3 D) measurement. For example: If you wanted to measure the LENGTH of something your answers would be in the metric unit of meter.

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Volume

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  1. Volume

  2. Volume is the amount of space that an object takes up. Unlike LENGTH (1 dimension), or AREA (2 dimension), VOLUME is a 3 dimensional (3 D) measurement. For example: • If you wanted to measure the LENGTH of something your answers would be in the metric unit of meter.

  3. If you wanted to measure the AREA of something, you would use area = length x width and your answer would be in squared metric units, like m2, cm2, or mm2.

  4. If you wanted to measure the VOLUME of something, you would use volume = length x width x height. Your answer would be in cubic metric units like mm3, cm3, or m3.

  5. Solid Liquid • What if our object is a cylinder? For a solid you would use pr2h, where p is an irrational number (3.1459…), r is the radius (squared), and h is the height.

  6. What if our object is an irregular shape? You would use volume by displacement. Using graduated cylinders, record the initial water level (starting volume) in millimeters (ml). 3.40 ml

  7. What if our object is an irregular shape? You would use volume by displacement. Using graduated cylinders, record the initial water level (starting volume) in millimeters (ml). Next place object in cylinder (carefully).

  8. What if our object is an irregular shape? You would use volume by displacement. Using graduated cylinders, record the initial water level (starting volume) in millimeters (ml). Next place object in cylinder (carefully). Then record the final water level (ending volume) in ml. 5.0 ml

  9. What if our object is an irregular shape? You would use volume by displacement. Using graduated cylinders, record the initial water level (starting volume) in millimeters (ml). Next place object in cylinder (carefully). Then record the final water level (ending volume) in ml. Next subtract the initial water level from the final water level. This will equal the displaced water level in ml. Last convert water displaced in ml to the solid object cm3. 5.0 ml – 3.4 ml = 1.6 ml 1 ml = 1 cm3 So, 1.6 ml = 1.6 cm3

  10. 1.6 cm3 • What if our object is an irregular shape? Our little doll is 1.6 cm3!

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