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Formula Sheet

Motion in a Straight Line

NIOS · Class 12 · Physics

All formulas from Motion in a Straight Line in NIOS Class 12 Physics. Key equations, constants, and identities for board exam preparation.

45 questions5 concepts

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A position-time (x-t) graph showing a horizontal line, representing a particle that is at rest (zero velocity) over a period of time.
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10 Formulas · 4 Sections

Formulas

Distance, Displacement, Speed and Velocity

Average Velocity (v̄) = Δx / Δt = (x₂ - x₁) / (t₂ - t₁)

Average Speed = Total Distance Travelled / Total Time Taken

Relative Velocity of B w.r.t. A: v_BA = v_B - v_A

Acceleration and Instantaneous Quantities

Average Acceleration (ā) = Δv / Δt = (v₂ - v₁) / (t₂ - t₁)

Instantaneous Velocity: v = lim(Δt→0) (Δx/Δt) = dx/dt

Instantaneous Acceleration: a = lim(Δt→0) (Δv/Δt) = dv/dt

Position-Time (x-t) Graphs

Average Velocity = Slope of x-t graph = Δx/Δt = BC/AC = tan θ

Velocity-Time (v-t) Graphs

Acceleration = Slope of v-t graph = Δv/Δt = MP/LP = tan θ

Distance = Area under v-t graph

Area of trapezium = (1/2)(v₁ + v₂)(t₂ - t₁)

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Frequently Asked Questions

What are the important topics in Motion in a Straight Line for NIOS Class 12 Physics?
Key topics in Motion in a Straight Line include Motion in a Straight Line – Complete Concept Map, Complete Concept Hierarchy: Motion in a Straight Line, Mind map showing the complete chapter structure and all major topics covered in Motion in a Straight Line. These are the concepts NIOS Class 12 examiners draw on most — study them first, then practise related questions.
How to score full marks in Motion in a Straight Line — NIOS Class 12 Physics?
Understand the core concepts first, then work through the 45 practice questions available for this chapter. Revise formulas and definitions regularly, and use flashcards for quick recall before the exam.

Sources & Official References

Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.

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