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physical quantities in Physcis

A key focus will be on the concept of volume as a fundamental physical property of matter. The presentation will cover various methods and principles for measuring the volume of regular and irregular solids, as well as liquids and gases. We will discuss the standard units of volume and the importance of accurate measurement in scientific experiments and real-world applications. Join us to solidify your understanding of what matter is and how we quantify the space it takes up.

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physical quantities in Physcis

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  1. Scalar Quantities Definition Quantities defined by magnitude and unit only Example Watermelon mass: 3kg (3 is magnitude, kg is unit) Common Types Speed, temperature, mass, density

  2. Vector Quantities Definition Requires both magnitude and direction Example Bus moving at 50 m/s North Visualization Like pointing a finger: length = magnitude, pointer = direction Common Types Force, acceleration, momentum, torque, magnetic field

  3. Vector Representation Draw diagram Create directed line segment Represent magnitude Length of line shows size Show direction Arrow head points way

  4. Summary of Physical Quantities Understanding differences Scalar vs. Vector distinctions Scalar quantities Only need magnitude and unit Vector quantities Require magnitude, unit, and direction Vector representation Arrows show size and direction

  5. Quiz Question 1 What are Scalar quantities? A) Only magnitude B) Only direction C) Magnitude and unit D) Magnitude and direction

  6. Quiz Answer 1 What are Scalar quantities? A) Only magnitude B) Only direction *C) Magnitude and unit D) Magnitude and direction

  7. Quiz Question 1 Which quantity needs a direction? A) Mass B) Temperature C) Speed D) Velocity

  8. Quiz Answer 1 Which quantity needs a direction? A) Mass B) Temperature *C) Speed D) Velocity

  9. Quiz Question 3 What represents magnitude in a vector diagram? A) Arrowhead B) Length C) Color D) Angle

  10. Quiz Answer 3 What represents magnitude in a vector diagram? A) Arrowhead B) Length *C) Color D) Angle

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