Mechanics 🏋️
Mechanics studies motion and forces. Topics include kinematics, Newton’s laws, work-energy theorem, and momentum conservation.
Kinematics 🧭
Equations: s = ut + 1/2 at², v² = u² + 2as
Newton’s Laws of Motion ⚡
Force: F = ma. Three laws explain motion.
| Law | Description | Example |
|---|
| First Law | Object remains at rest or in motion unless acted upon. | Ball stays still until kicked. |
| Second Law | Force equals mass × acceleration. | Pushing a car accelerates it. |
| Third Law | Action = Reaction | Rocket propulsion. |
Work, Energy & Power 🔋
Work: W = F × d × cosθ
KE: 1/2 mv², PE: mgh
Practice Mechanics 📝 Thermodynamics 🔥
Study of heat, work, and energy transfer. LSI keywords: heat capacity, entropy, thermal expansion, engines.
First Law
ΔU = Q – W (Energy conservation)
Second Law & Entropy
Heat flows from hot → cold. Entropy measures disorder.
Thermal Properties 🌡️
Q = mcΔT. Latent heat: melting, boiling.
Practice Thermodynamics 📝 Optics 🌈
Light behavior: reflection, refraction, lenses. LSI keywords: wave optics, mirrors, dispersion, ray diagrams.
Reflection & Refraction
Reflection: θi = θr
Refraction: n1 sinθ1 = n2 sinθ2
Lenses & Mirrors 🔭
Lens formula: 1/f = 1/v – 1/u
Practice Optics 📝 Electrostatics ⚡
Study of charges at rest. LSI keywords: Coulomb’s law, electric field, potential, conductors, insulators.
Coulomb’s Law
F = k q1 q2 / r²
Electric Field & Potential
E = F/q, V = kq/r
Practice Electrostatics 📝 Waves & Oscillations 🌊
Mechanical & EM waves. Keywords: frequency, amplitude, wavelength, superposition.
Wave Equation
v = fλ
Simple Harmonic Motion
x = A sin(ωt + φ)
Practice Waves 📝 Magnetism 🧲
Magnetic fields and forces. LSI: Lorentz force, flux, induction, Faraday’s law.
Magnetic Force
F = q v × B
Electromagnetic Induction
ε = -dΦ/dt
Practice Magnetism 📝 Modern Physics 🔬
Quantum physics, photoelectric effect, nuclear physics, relativity. LSI: Planck, photons, atomic models.
Photoelectric Effect
hf = φ + KE
Atomic Models
Bohr model: E = -13.6/n² eV
Practice Modern Physics 📝 FAQ ❓
Q: Are these physics concepts suitable for board exams?
A: Yes. All sections align with NCERT syllabus and exam-oriented practice.
Q: Can I download formulas and diagrams?
A: Yes. PDF downloads and SVG diagrams are provided.
Q: Are there practice tests for each topic?
A: Yes. Each concept section includes practice quizzes and sample problems.
Q: How often is the content updated?
A: Content is reviewed and updated periodically to reflect syllabus changes.
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