https://www.khanacademy.org/science/strengthened-shs-physics-1/x5eb5cea12d2cf683:introduction-to-physics/x5eb5cea12d2cf683:kinematics-measuring-tools/v/measurement-of-physical-properties 2025-06-02T04:26:07.961363219Z Measurement of physical properties In this video, we explore the International System of Units (SI) and understand why standardization in measurement is crucial — illustrated through real-world examples, including the infamous Mars Climate Orbiter failure caused by a unit mismatch. We’ll dive into the seven fundamental scientific quantities, take a quick look at CGS units, and see how SI units are deeply embedded in our daily lives — from cooking and construction to healthcare and space missions. Nitika Duggal video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Measurement of physical properties In this video, we explore the International System of Units (SI) and understand why standardization in measurement is crucial — illustrated through real-world examples, including the infamous Mars Climate Orbiter failure caused by a unit mismatch. We’ll dive into the seven fundamental scientific quantities, take a quick look at CGS units, and see how SI units are deeply embedded in our daily lives — from cooking and construction to healthcare and space missions. https://cdn.kastatic.org/ka-youtube-converted/5tkHkbZMRb4.mp4/5tkHkbZMRb4.mp4 592 Measuring tools https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:working-units/x2f8bb11595b61c86:appropriate-units/v/reporting-measurements 2022-09-10T01:04:29.754011735Z Reporting measurements We should think about the appropriate level of precision of different measurements in modeling problems. Sal Khan video https://cdn.kastatic.org/ka_thumbnails_cache/ddffe2ca-21c3-4088-8f4f-50f2d43168f2_1280_720_base.png Reporting measurements We should think about the appropriate level of precision of different measurements in modeling problems. https://cdn.kastatic.org/ka-youtube-converted/UEe81kJtY8A.mp4/UEe81kJtY8A.mp4 363 Measuring tools https://www.khanacademy.org/science/strengthened-shs-chemistry-1/x174677b2bfa4bea2:1st-quarter/x174677b2bfa4bea2:accuracy-and-precision/e/reporting-measurements 2021-04-29T07:51:19Z Reporting measurements Students think about the appropriate level of precision of different measurements in modeling problems. Tomer Gal exercise https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:working-units/x2f8bb11595b61c86:rate-conversion/v/dimensional-analysis-units-algebraically 2020-12-28T16:56:56Z Intro to dimensional analysis Sal shows how we can treat units of measurement algebraically, and use these tools in order to convert between different units of the same quantity. Sal Khan video https://cdn.kastatic.org/googleusercontent/GhjlzizSa5mpNZWybhfu7RaNmeOvLgZIbjJ_52cZhXw4F4EaBiDoFMD3VnFdKVfST9GgwbIgPSrN0xSN0WokXv8 Intro to dimensional analysis Sal shows how we can treat units of measurement algebraically, and use these tools in order to convert between different units of the same quantity. https://cdn.kastatic.org/ka-youtube-converted/hIAdCTNi1S8.mp4/hIAdCTNi1S8.mp4 389 Measuring tools https://www.khanacademy.org/science/grade-11-physics-snc-aligned/x1d0fed5276339e80:measurements/x1d0fed5276339e80:dimensional-analysis-formula-derivation-and-consistency/e/dimensional-analysis-and-its-applications 2025-09-25T04:00:39.995699011Z Dimensional analysis and its applications Dimensional analysis and its applications Chandan Ganotra exercise https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:working-units/x2f8bb11595b61c86:appropriate-units/v/interpreting-units-in-formulas-novel 2022-09-10T01:04:29.754011735Z Formulas and units: Comparing rates When using formulas to calculate real-world quantities, we need to make sure our units are consistent. In this video, one growth rate is given in centimeters per week and the other is given in millimeters per day. In order to compare which rate is faster, we need to convert one of the rates to units that match the other rate. video https://cdn.kastatic.org/ka_thumbnails_cache/173fd8c8-7af2-448f-aa00-ae0dc2370dcf_1280_720_base.png Formulas and units: Comparing rates When using formulas to calculate real-world quantities, we need to make sure our units are consistent. In this video, one growth rate is given in centimeters per week and the other is given in millimeters per day. In order to compare which rate is faster, we need to convert one of the rates to units that match the other rate. https://cdn.kastatic.org/ka-youtube-converted/IuvsQjW1qa4.mp4/IuvsQjW1qa4.mp4 222 Measuring tools https://www.khanacademy.org/math/algebra/x2f8bb11595b61c86:working-units/x2f8bb11595b61c86:appropriate-units/e/working-with-units 2023-03-10T23:13:27.982318575Z Formulas and units Use various formulas to solve real world problems while attending to the units of the quantities that make up the formulas. Tomer Gal exercise