Physics is the science that studies matter, energy, motion, and forces, and how they interact in the universe. It explains everyday phenomena like movement, hea...
Last updated at: 11 Aug 2026
Physics is the study of matter, energy, space, and time, and how they interact.
At its core, physics tries to answer:
Why do objects move?
What is energy?
How does the universe work?
Physics depends on precise measurement.
Length → meter (m)
Mass → kilogram (kg)
Time → second (s)
Temperature → kelvin (K)
Electric current → ampere (A)
👉 Everything else (velocity, force, energy) is built from these.
Describes how objects move.
Displacement (distance with direction)
Velocity = change in displacement / time
Acceleration = change in velocity / time
v = u + at
s = ut + ½at²
v² = u² + 2as
Explains motion using forces.
Inertia: Objects resist changes in motion
F = ma: Force = mass × acceleration
Action–reaction: Every action has an equal and opposite reaction
Work = Force × distance
(only when force causes movement)
Capacity to do work
Types:
Kinetic (motion)
Potential (position)
Energy cannot be created or destroyed—only transformed.
Rate of doing work
Power = Work / time
Momentum = mass × velocity
Conservation of momentum
(total momentum stays constant in a closed system)
Mechanical (sound)
Electromagnetic (light)
Wavelength
Frequency
Speed = frequency × wavelength
Heat flows from hot → cold
Temperature measures average kinetic energy
Energy is conserved
Entropy (disorder) increases
Charge
Current
Voltage
Resistance
V = IR
Moving charges create magnetic fields.
Quantum mechanics (very small scale)
Relativity (very fast / massive objects)
E = mc² (mass–energy equivalence)
Wave–particle duality
Understand concepts first, then formulas
Practice solving problems
Visualize real-life examples
Focus on “why,” not just “how”
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Bedanidhi Bhandari is an experienced educator with over 7 years of teaching experience at Nima Higher Secondary School. Passionate about helping students achieve academic success, he combines effective teaching methods with practical knowledge. In addition to his teaching career, he has extensive experience in Information Technology and has worked as an IT Engineer at TashiCell, bringing valuable technical expertise to his educational approach.
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Students
9
language
English
Duration
00h 00mLevel
intermediate
Expiry period
1 Months
Certificate
YesLast updated
11 Aug 2026
English
Certificate Course
9 Students
00h 00m