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Common Metric Units and Tools Used to Measure

Common Metric Units and Tools Used to Measure . 1. Length (m)– straight line distance between two points. Ways to measure length: A. Ruler. Used for relatively small measurements Not the most accurate tool. B. Retractable Metal Tape. For relatively long measurements

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Common Metric Units and Tools Used to Measure

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  1. Common Metric Units and Tools Used to Measure

  2. 1. Length (m)– straight line distance between two points.

  3. Ways to measure length: A. Ruler • Used for relatively small measurements • Not the most accurate tool

  4. B. Retractable Metal Tape • For relatively long measurements • Not the most accurate

  5. C. Micrometer • used to measure small diameters and thickness of thin materials. • Accurate tool

  6. D. Vernier calipers measures the thickness of an item Accurate tool

  7. You put the object between the two largest jaws, pull them snugly together around it and make your reading

  8. Answer: reading = 36.4 mm or 3.64 cm or possibly 36.45 mm or 3.645 cm

  9. If you want to measure the inner diameter of these contact holes, you use the small sharp jaws on the other side. You pull them apart until they press against the sides of the holes, and make your reading on the same scales as the other jaws.

  10. In the bottom end of the caliper is a narrow tongue that sticks out as long as the distance between the jaws. You can use it to measure the depth of a hole. Put the bottom of the scale body against the edge of the hole. Pull the jaws apart until the narrow tongue presses against the bottom of the hole

  11. 2. Volume – amount of space a substance occupies A. Solid (such as a brick) – would use V = l x w x h units are often expressed as cubic meters (m3) or cubic centimeters (cm3 = cc ) Solid volume of irregular shaped objects can be measured by water displacement

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