Physics
10 Common Physics Mistakes Students Make
By Dr. Sandhya Classes Editorial Team · Published 2026-10-03 · Updated 2026-10-03 · 3 min read
The most frequent conceptual and calculation errors in Physics — and how to avoid them.
Physics at Dr. Sandhya Classes is taught personally by Dr. Sandhya, Ph.D. in Physics, teaching since 2015 — offline in Zirakpur (Highland Marg & Lohgarh Road) and online across India. About Dr. Sandhya
Ignoring units
Mixing cm and m, or grams and kilograms, ruins otherwise correct solutions.
Skipping diagrams
Without a diagram, directions and signs are easily confused.
Memorising without conditions
Every formula has conditions. Using equations of motion with variable acceleration is a classic mistake.
Confusing similar quantities
Speed and velocity, mass and weight, field and potential are often mixed up.
Not reviewing errors
Repeating the same mistake is avoidable when errors are logged and reviewed.
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