Category: Theory Topics

🔷 Chapter Overview This chapter introduces Newton’s Laws of Motion, explains the concept of force, inertia, momentum, and gives a mathematical foundation to understand how …

Chapter 7 – Motion (Class 9 Science)This chapter introduces the fundamental concepts of motion in physics. It helps students understand how objects move, how their …

Imagine riding in a car that suddenly stops — the body continues to move forward until the seatbelt pulls it back. This everyday experience perfectly …

Electromagnetic waves are the backbone of modern technology, powering everything from radio broadcasts to MRI machines. A fundamental question about these waves is: How fast …

To find the instantaneous velocity of an object, we have to use the concept of limits and derivatives(calculus). Instantaneous velocity is defined as the velocity …

Electric eels (Electrophorus spp.) are one of nature’s most electrifying marvels, capable of generating up to 860 volts of electricity—enough to stun a horse! But …

Learn which of Dalton’s postulates were incorrect, why isotopes and subatomic particles reshaped atomic theory, and explore a detailed accuracy comparison table. John Dalton’s atomic …

Let’s talk about something we’ve all experienced but maybe never noticed: rotational motion. Ever wondered why a figure skater spins faster when they pull their arms …

Learn how to calculate enthalpy change using calorimetry, Hess’s Law, standard enthalpies, and bond energies. Includes formulas, examples, and a comparison table. Enthalpy change (ΔH) …

If you’ve ever wondered, “How is a coil of current-carrying wire similar to a bar magnet?” you’re about to uncover one of electromagnetism’s most intriguing parallels. This …