{"id":10192,"date":"2022-11-24T10:00:19","date_gmt":"2022-11-24T04:30:19","guid":{"rendered":"https:\/\/www.aplustopper.com\/?p=10192"},"modified":"2022-11-25T16:45:28","modified_gmt":"2022-11-25T11:15:28","slug":"what-are-the-measuring-instruments","status":"publish","type":"post","link":"https:\/\/www.aplustopper.com\/what-are-the-measuring-instruments\/","title":{"rendered":"What are the Measuring Instruments?"},"content":{"rendered":"
<\/p>\n
Example 1.<\/strong> Figure shows a pair of vernier callipers being used to measure the diameter of a metal pipe. Example 2.<\/strong> A boy uses a pair of vernier callipers to measure the width of a handphone as shown in Figure. Above Figure shows three possible situations when using a pair of vernier callipers, that is, Example 3.<\/strong> Figure shows a pair of vernier callipers with zero error being used to measure the thickness of a book. Example 4.<\/strong> Figure shows a pair of vernier callipers with zero error being used to measure the width of a remote control. Example 5.<\/strong> The diagram shows the position of a vernier scale at the main scale of a vernier calipers. What is the value of s? Example 6. Figure shows a micrometer screw gauge being used to measure the thickness of a coin. Example 7.<\/strong> Figure shows the scale of a micrometer screw gauge. There are two possible types of zero errors in using the micrometer screw gauge, that is the positive zero error and the negative zero error. Example 8.<\/strong> Figure (a) shows the zero error of a micrometer screw gauge and Figure (b) shows its subsequent reading of a measurement. Example 9.<\/strong> Figure (a) shows the zero error of a micrometer screw gauge and Figure (b) shows its subsequent reading of a measurement. Some Common Measuring Instruments The measuring tape is used to measure lengths of several meters. Measurements are accurate up to 0.01 m. It is suitable for measuring the distance jumped by a long jumper, the distance of the throw of a javelin and the height of a jump by a high jumper. The meter […]<\/p>\n","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_genesis_hide_title":false,"_genesis_hide_breadcrumbs":false,"_genesis_hide_singular_image":false,"_genesis_hide_footer_widgets":false,"_genesis_custom_body_class":"","_genesis_custom_post_class":"","_genesis_layout":"","footnotes":""},"categories":[404],"tags":[3649,3648,3654,3653,3651,3650,3655,3652],"yoast_head":"\n
\nSolution:<\/strong>
\nReading on main scale = 2.1 cm
\nReading on the vernier scale = 0.07 cm
\nTherefore, the diameter of the metal pipe = 2.1 + 0.07
\n= 2.17 cm<\/p>\n
\nWhat is the reading of the vernier callipers?
\nSolution:<\/strong>
\nReading on main scale = 4.0 cm
\nReading on the vernier scale = 0.04 cm
\nTherefore, the width of the handphone = 4.0 + 0.04 = 4.04 cm<\/p>\nZero Errors in Vernier Callipers<\/strong><\/h3>\n
\n(a) no zero error,
\n(b) positive zero error,
\n(c) negative zero error.
\nHence,
\nCorrect reading = Reading obtained – Zero error
\n<\/p>\n
\nWhat is the thickness of the book?
\nSolution:<\/strong>
\nZero error = +0.03 cm
\nReading with zero error = 1.99 cm
\nTherefore, the thickness of the book
\n= 1.99 – 0.03
\n= 1.96 cm<\/p>\n
\n
\nWhat is the width of the remote control?
\nSolution:<\/strong>
\nNegative zero error is involved. Hence, the reading cannot be made directly.
\nZero error = -(0.63 – 0.6)
\n= -0.03 cm
\n
\nReading with zero error = 5.26 cm
\nTherefore, the width of the remote control = 5.26 – (-0.03)
\n= 5.29 cm<\/p>\n
\nSolution:<\/strong>
\nThe reading of the measurement is 5.16 cm.
\nHence s = 0.16 cm.<\/p>\nReading the Micrometer Screw Gauge<\/strong><\/h3>\n
\nWhat is the thickness of the coin?
\nSolution:<\/strong>
\nReading on the main scale = 2.50 mm
\nReading on the thimble scale = 0.27 mm
\nThickness of the coin = (2.50 + 0.27) mm
\n= 2.77 mm<\/p>\n
\nWhat is the reading of the micrometer?
\nSolution:<\/strong>
\nReading on the main scale = 5.50 mm
\nReading on the thimble scale = 0.33 mm
\nTherefore, the reading of the micrometer = 5.50 + 0.33
\n= 5.83 mm<\/p>\nZero Errors in Micrometer Screw Gauge<\/strong><\/h3>\n
\n<\/p>\n
\nWhat is the actual value of the measurement?
\nSolution:<\/strong>
\nZero error = +0.01 mm Reading = 4.29 mm
\nActual value of measurement = 4.29 – 0.01
\n= 4.28 mm<\/p>\n
\nWhat is the actual value of the measurement?
\nSolution:<\/strong>
\nZero error = -0.01 mm
\nReading = 6.30 mm
\nActual value of measurement = 6.30 – (-0.01)
\n= 6.31 mm<\/p>\n","protected":false},"excerpt":{"rendered":"