Physics Fundamentals Quiz

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Questions and Answers

Which of the following is NOT considered a base quantity?

  • Temperature
  • Mass
  • Length
  • Volume (correct)

Which of these quantities is classified as a derived quantity?

  • Length
  • Force (correct)
  • Mass
  • Electric current

Which of the following disciplines of physics primarily focuses on the motion and forces acting on objects?

  • Nuclear Physics
  • Mechanics (correct)
  • Geophysics
  • Plasma Physics

What standard system of measurements was adopted in 1960 for worldwide use?

<p>International System of Units (SI) (C)</p> Signup and view all the answers

What aspect of physics does the field of thermodynamics primarily address?

<p>The nature of heat and its transfer (C)</p> Signup and view all the answers

Which branch of physics is concerned with the study of light and optical instruments?

<p>Optics (D)</p> Signup and view all the answers

Which of the following statements about base units is true?

<p>Base units are the foundation for measuring derived quantities. (D)</p> Signup and view all the answers

What is the primary focus of geophysics within the realm of physics?

<p>Internal structure of the Earth (A)</p> Signup and view all the answers

How many liters are equivalent to one cubic meter?

<p>1000 L (C)</p> Signup and view all the answers

Which branch of physics examines the characteristics and interactions of atomic nuclei?

<p>Nuclear Physics (A)</p> Signup and view all the answers

What two characteristics are common to all physical quantities?

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

Which of the following statements about physical quantities is accurate?

<p>A student's height in centimeters is an example of a physical quantity. (C)</p> Signup and view all the answers

In the context of forces, how many perpendicular components can a force have?

<p>3 (A)</p> Signup and view all the answers

According to the head-to-tail method, if you have four forces, how many can be added effectively?

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

What result occurs when a resultant force is equal and opposite to other forces?

<p>Speed remains zero (D)</p> Signup and view all the answers

Flashcards

Base Quantities

The seven fundamental quantities that form the basis for all other physical quantities.

Derived Quantities

Quantities derived by combining base quantities.

International System of Units (SI)

A globally accepted system of units for physical quantities.

Base Units

The units used to express base quantities.

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1 Liter (L)

The volume occupied by 1000 cubic centimeters.

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Physical Quantity

A measurable quantity, such as length, mass, time, or temperature.

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Magnitude

The numerical value of a physical quantity, like '10' in '10 meters'.

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Unit

The standard unit used to measure a physical quantity, like 'meters' in '10 meters'.

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What is physics?

Physics is the study of matter, energy, and their interactions. It's the most fundamental science, exploring the building blocks of everything around us.

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What is Mechanics?

Mechanics is the study of how objects move and the forces that cause their motion. It's about understanding the relationship between motion, forces, and energy.

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What is Heat?

Heat deals with the transfer and effects of heat energy. It explains how temperature changes and how heat can be used to do work.

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What is Sound?

Sound is the study of vibrations and how they travel through a medium to create what we hear. It focuses on properties like pitch, loudness, and the physics behind musical instruments.

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What is Optics?

Optics studies light and its properties (reflection, refraction) and its applications in instruments like telescopes and microscopes.

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