PHY1001 - cheat sheet.docx

PHY1001 - cheat sheet.docx - Empirical – Involving info...

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Empirical – Involving info that comes from observations or experiments Vector – A quantity that has both a magnitude or amount and a direction Scalar – A physical quantity that is not associated with direction Accuracy - How close a measurement, calculations or result is to the actual value Precision - The resolution or level of certainty of a measurement Power – The time rate of energy being transformed or used or work being done Newton – The MKS unit of force Conservation – A force whose work done depends only on start and end position and not on path Impulse – A change in the momentum of a system or object Free body – An object that has (non-negligible) mass and can move **Steps: draw pic for each / draw all forces & choose x,y axis / write newton’s 2 nd law / solve Inertia – Resistance to change in state of motion Static – Denotes position or related physical quantities are not changing with time Heat
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  • Fall '10
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