Physics Units and Measurements Quiz (CO1)
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Questions and Answers

Which branch of science deals with the study of matter, energy, and their transformations in nature?

  • Mathematics
  • Chemistry
  • Physics (correct)
  • Biology

What is primarily a source of communication in engineering and science?

  • Counting
  • Accuracy
  • Measurement (correct)
  • Unit

Which among the following is a fundamental physical quantity?

  • Speed
  • Length (correct)
  • Pressure
  • Energy

What is the unit of mass in the SI system?

<p>Kilogram (B)</p> Signup and view all the answers

How many fundamental physical quantities are there?

<p>7 (C)</p> Signup and view all the answers

Electric current and thermodynamic temperature are categorized as which type of quantities?

<p>Fundamental physical quantities (A)</p> Signup and view all the answers

Which unit is used to measure the amount of substance in the SI system?

<p>Mole (C)</p> Signup and view all the answers

Which of the following quantities are supplementary physical quantities?

<p>Plane angle and solid angle (A)</p> Signup and view all the answers

Flashcards

What is physics?

Physics is the branch of science that studies matter, energy, and their transformations in nature.

Why is measurement important?

Measurement is a crucial tool for communication in engineering and science. It allows us to quantify observations and share findings effectively.

What are fundamental physical quantities?

Fundamental physical quantities are those that do not depend on other quantities for their measurement. They are the building blocks of all other quantities.

What are derived physical quantities?

Derived physical quantities are those that are defined in terms of other quantities. They are derived (calculated) from fundamental quantities.

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What is the SI system?

The SI system (Système International d'Unités) is the modern form of the metric system. It is the most widely used system of measurement in the world.

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What is the SI unit of mass?

The kilogram (kg) is the SI unit of mass. It is a fundamental unit, meaning it is not derived from other units.

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What is the SI unit of time?

The second (s) is the SI unit of time. It is a fundamental unit, meaning it is not derived from other units.

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What is the SI unit of electric current?

The ampere (A) is the SI unit of electric current. It is a fundamental unit, meaning it is not derived from other units.

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Study Notes

Units and Measurements (CO1)

  • Physics is the branch of science dealing with matter, energy, and their transformations.
  • Measurement is a crucial tool for communication in science and engineering.
  • Measurements are essential in science to identify and verify scientific laws.
  • Measurements are essential in engineering for accurately predicting physical quantities and ensuring product quality.
  • Fundamental physical quantities are those quantities that do not depend on other quantities for their measurement.
  • Derived physical quantities depend on other quantities for their measurement.
  • Fundamental units are used to measure fundamental physical quantities.
  • Derived units are used to measure derived physical quantities.
  • There are 7 fundamental physical quantities.
  • Length, mass, and time are fundamental physical quantities.
  • Electric current, thermodynamic temperature, amount of substance, and luminous intensity are fundamental physical quantities.
  • Plane angle and solid angle are supplementary physical quantities.
  • The SI unit of mass is kilogram.
  • The SI unit of time is second.
  • The SI unit of electric current is ampere.
  • The SI unit of thermodynamic temperature is Kelvin.
  • The SI unit of amount of substance is mole.
  • The SI unit of luminous intensity is candela.
  • The SI unit of plane angle is radian.

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Test your knowledge on the fundamental and derived physical quantities covered in the Units and Measurements section of Physics. This quiz will help you understand the importance of measurement in science and engineering. Are you ready to challenge your understanding?

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