Physics

Class 9

Interactive Science Lab

Linear Motion Simulator

Explore distance, displacement, speed, velocity, and 1D vector motion with live track animation.

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Linear Motion Interactive Simulation

Explore distance, displacement, time, speed, and velocity in straight-line motion with real-time vector visualization.

Class 9 Physics

Kinematics

Linear Motion Track(1D Kinematics)

Elapsed Time:0.0 s/ 10 s

Position x(t):0 m

Distance Covered:0 m

0s10s

Speed:

Motion Parameters

Quick Preset Scenarios

Distance (d)

10 m250 m500 m

Time Duration (t)

1 s30 s60 s

Return Trip (Distance vs Displacement Concept)

Turn on to walk forward, then return backward partially.

Motion Parameters

Quick Preset Scenarios

Distance (d)

10 m250 m500 m

Time Duration (t)

1 s30 s60 s

Return Trip (Distance vs Displacement Concept)

Turn on to walk forward, then return backward partially.

Motion Results & Key Quantities

Class 9 Physics (SI Units)

d (Scalar)

100

meters (m)

Actual path length

Δx (Vector)

+100

m (forward)

x_final - x_initial

t (Scalar)

seconds (s)

Duration of motion

v (Scalar)

m/s (36 km/h)

Distance / Time

v⃗ (Vector)

+10

m/s (forward)

Displacement / Time

Distance vs Displacement

Distance: Total length of the path travelled. It is a scalar quantity and is always positive.

Displacement: Shortest straight-line distance from initial to final point with direction. It is a vector quantity and can be positive, negative, or zero.

Speed vs Velocity

Speed (v): Rate of change of distance (v = d / t). Has magnitude only.

Velocity (v⃗): Rate of change of displacement in a specific direction (v⃗ = Δx / t). Has both magnitude and direction.

Step-by-Step Mathematical Calculations

Class 9 Physics (Sindh & Karachi Textbook Board Curriculum)

Step 1[SI units]

Identify Given Values

\text{Distance } (S \text{ or } d), \quad \text{Time } (t)

Sub: d = 100 \text{ m}, \quad t = 10 \text{ s}

Result:d = 100 \text{ m}, \; t = 10 \text{ s}

Step 2[m/s]

Calculate Speed (Scalar Quantity)

v = \frac{d}{t} = \frac{\text{Total Distance}}{\text{Total Time}}

Sub: v = \frac{100}{10}

Result:10 m/s

Step 3[m]

Calculate Displacement (Vector Quantity)

\Delta x = x_f - x_i

Sub: \Delta x = 100 - 0

Result:+100 (forward) m

Step 4[m/s]

Calculate Velocity (Vector Quantity)

\vec{v} = \frac{\vec{d}}{t} = \frac{\text{Displacement}}{\text{Time}}

Sub: \vec{v} = \frac{100}{10}

Result:+10 \text{ (forward)} m/s

Step 5[km/h]

Convert Speed to km/h (Exam Standard)

\text{Speed (km/h)} = \text{Speed (m/s)} \times 3.6

Sub: 10 \times 3.6

Result:36 km/h

Class 9 Exam Tip: Speed vs Velocity & Unit Conversion

Speed Conversion Trick: To convert m/s → km/h, multiply by 3.6 (or 18/5). To convert km/h → m/s, divide by 3.6.
Straight-Line Case: When a body moves in a straight line without reversing, Distance = Magnitude of Displacement and Speed = Magnitude of Velocity.
Zero Displacement: If an object returns to its starting point, its total displacement is 0 meters and its average velocity is 0 m/s, even though the total distance covered is greater than zero!

Board Numerical Practice & Challenges

Class 9 Karachi/Sindh Board exam questions with instant simulation verification.

100m Athlete Sprint

Past Paper: Karachi Board 2023

A runner completes a 100-meter straight race in 10.0 seconds. Calculate the runner's average speed in m/s.

m/s

Syllabus Mapping & Learning Objectives

This interactive tool is modeled directly after the official Pakistani textbook curriculam (Sindh Textbook Board, Federal Board Islamabad, and Punjab Textbook Board). It provides live parameter tuning so students can test hypotheses, predict exam outcomes, and observe physical/chemical laws mathematically.

Key Topics Covered

KinematicsMotionSpeed & Velocity

More Study Resources

Pair this simulation with verified solved board past papers and chapter revision notes.

Solved Board Past Papers Chapter-Wise Revision Guides Online Scientific Calculator