Courses / Physics I
Computer Science

Integrated computational problem solving

Physics I 207 words Free to read

Complete Scientific Workflows

Integrated computational problem solving combines algorithms, data structures, numerical methods, and visualisation into end-to-end scientific pipelines.

A typical pipeline flows from definition to insight:

Pipeline StageAction / Purpose
DefineFormulate the scientific question
ModelWrite the governing equations
DiscretiseChoose numerical methods & step size
CodeImplement in Python (NumPy/Matplotlib)
ValidateCheck limits and edge cases
VisualisePlot and interpret results

Core Strategy: Always start simple. Build your code without drag or friction first, validate that baseline, and add complexity incrementally.

Building everything at once fails where building it in layers succeeds

Projectile Simulation & Pitfalls

Consider a projectile with drag modelled via Newton's second law. The position updates use velocity components affected by gravity gg and drag coefficient bb:

vx(i)=vx(i1)bspeedvx(i1)dtv_x^{(i)} = v_x^{(i-1)} - b \cdot \text{speed} \cdot v_x^{(i-1)} \cdot dt

vy(i)=vy(i1)(g+bspeedvy(i1))dtv_y^{(i)} = v_y^{(i-1)} - (g + b \cdot \text{speed} \cdot v_y^{(i-1)}) \cdot dt

Validation check: Set b=0b=0 to ensure your simulation recovers the standard textbook parabolic trajectory.

Common pitfall: Premature optimisation wastes massive effort. First make your code correct and clear, measure performance bottlenecks, and only then speed up what the profiler actually indicts.

Practise this lesson

The explanation above is free to read. The graded practice for this lesson lives in the Tryals app.

13practice questions
2interactive scenes

Computer Science