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Lab Equipment

Lab Equipment. How to Measure Length. Length – Distance from one point to another. Units = Meters (Km, cm, etc.) Equipment – Ruler, Meter Stick. How to Measure Mass. Mass – Amount of matter in an object Units = Grams (Kg, mg, etc.) Equipment - Triple beam balance. Mass vs. Weight.

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Lab Equipment

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  1. Lab Equipment

  2. How to Measure Length • Length – Distance from one point to another. • Units = Meters(Km, cm, etc.) • Equipment – Ruler, Meter Stick

  3. How to Measure Mass • Mass – Amount of matter in an object • Units = Grams (Kg, mg, etc.) • Equipment - Triple beam balance

  4. Mass vs. Weight • Weight • Measure of gravity's effect on something • Weight = mass x gravitational acceleration • Measure with a scale. • Mass • The amount of matter in an object • Can measure with balance weights because the balance weights change by the same factor as the object you are measuring

  5. Mass vs. Weight • Move to a different planet and an object's weight will change, but its mass will be the same.

  6. Volume- How much space an object occupies

  7. Methods to Measure Volume: • If liquid, use a graduated cylinder 2. If regular shaped solid, use math formula: L x W x H = Volume

  8. Methods to Measure Volume: • If irregular solid, use water displacement method Subtract the two volumes!

  9. Units of Volume • If liquid, use Liters (L) • Equipment: Graduated Cylinder, Beaker • If solid, use meters3 or cm3 • To the third power because L x W x H, which is cm x cm x cm = cm3

  10. Which is the Most Precise?

  11. Which of the groups measured the volume with the highest precision?

  12. Reading Volume • Read from the bottom of the meniscus!

  13. Which of the following pieces of equipment would be most appropriate for measuring the volume of a marble?

  14. How to Measure Temperature • Thermometer • Temperature – The degree of hotness or coldness of an object. • Units – °C or Celsius • Other: • Water boils at 100°C • Water freezes at 0°C

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