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2. Kinematics​

🧠 Introduction Kinematics is the branch of mechanics that deals with the motion of objects without considering the causes of motion (i.e., forces). It includes concepts of displacement, velocity, acceleration, and equations of motion. ⚙ Motion Definition: A body is said to be in motion if it changes its position with respect to time. Types

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1. Physical World and Measurement

🧠 Introduction Physics is the science of measurement. To understand and describe physical phenomena accurately, one must be able to measure physical quantities and express them in terms of units. This chapter lays the foundation for the entire subject by explaining how physical quantities are measured, their units, types of errors in measurement, and the

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Chapter 4: Operations on Fractions

1. 🔑 Important Keywords and Definitions Fraction: A number that represents a part of a whole.Example: 23,58frac{2}{3}, frac{5}{8} 32,85 Proper Fraction: Numerator < Denominator.Example: 35frac{3}{5} 53 Improper Fraction: Numerator ≄ Denominator.Example: 74frac{7}{4} 47 Mixed Fraction: A whole number with a proper fraction.Example: 2132frac{1}{3} 231 Equivalent Fractions: Fractions that represent the same value.Example: 24=12frac{2}{4} = frac{1}{2}

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Chapter 3 – Integers

1. 🔑 Important Keywords and Definitions Integers: The set of numbers that includes positive numbers, negative numbers, and zero.Example: …, –3, –2, –1, 0, 1, 2, 3, … Positive Integers: Numbers greater than zero (1, 2, 3, …) Negative Integers: Numbers less than zero (–1, –2, –3, …) Zero (0): Neither positive nor negative. Number

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