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Understanding Measurement: Tools and Conversions in Metric System

Explore the world of measurement with this guide on tools and conversions in the metric system. Learn about everyday measurement tools, the International System (SI), converting units for length, mass, volume, temperature, and density. Discover practical examples and tips for accurate measurements.

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Understanding Measurement: Tools and Conversions in Metric System

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  1. Measurement • A way to describe the world with numbers.

  2. Measurement • Can answer: • How much, how long, or how far?

  3. Everyday Measurements

  4. Tools of Measurement • Stopwatches • Meter-sticks • Balances • Thermometers

  5. Metric System

  6. 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?

  7. Metric System • We use these prefixes the most: • kilo • centi • milli 1000 100 10 1 .1 .01 .001

  8. Converting Units

  9. Length • Meter is basic unit.

  10. Length • 1000 meters = kilometer

  11. Length

  12. Length • Use a centimeter to measure the length of a pencil.

  13. Length • 1 inch = 2.54 cm

  14. Length • 100 centimeters in a meter.

  15. Length • 1000 millimeters in a meter.

  16. Converting Units Length

  17. Mass Electronic Balance • 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

  18. Mass • Mass is the same no matter where in the universe the object is located. • Weight = pull of gravity.

  19. Converting Units: Mass

  20. Weight • Gravity exerts force on an object. • More mass = greater weight • Weight changes depending on location. • Unit = newtons (N)

  21. Weight • A brick & sponge have the same volume. • Brick has more mass so, it weighs more.

  22. Weight

  23. Volume • Amount of space something occupies. • L x W x H

  24. Volume Height of box = 2 Width = 3 Length = 6 2 x 3 x 6 = 36 36 cubes like the red one would take up the same amount of space as this box.

  25. Volume of Solids • Unit is meters cubed • cm3 • L X W x H

  26. Liquid Volume • Liters & milliliters are the units. • Meniscus is the curve at the surface of a liquid. • Read at lowest point.

  27. Volume of Irregular Shaped Solids • Use water displacement. • liters or mL rather than cm3

  28. Converting Units Volume

  29. 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)

  30. Temperature • How hot or cold a substance is. • We use degrees Celsius ºC.

  31. Temperature • Water freezes at 0º C. • Water boils at 100º C

  32. Measuring Temperature

  33. Density • Amount of matter in a given volume. • measure mass & volume of an object to find density. • Unit = g/mL3

  34. Density

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