Physics Is a Problem-Solving Subject, Not a Reading Subject
The single most important shift in studying physics is recognising that you cannot learn it by reading — you learn it by solving problems. Reading your textbook or watching lecture videos is useful for introducing ideas, but physics skill is built through active problem-solving practice. Every hour you spend solving problems is worth more than three hours re-reading notes.
The second key shift: develop physical intuition alongside mathematical skill. Before writing a single equation, visualise what's happening physically. Draw a diagram. Ask: "What forces are acting here? What's conserved? What's the physical story?" This step separates students who can solve unseen problems from those who can only solve problems identical to ones they've seen before.
The 5-Step Physics Problem-Solving Framework
Applied consistently, this framework works for every type of physics problem — from mechanics to electromagnetism to thermodynamics:
Draw & Label
Sketch the physical situation. Label all forces, velocities, angles, and variables. Free-body diagrams are non-negotiable.
Identify Knowns & Unknowns
List what you're given and what you need to find. Assign variable names to each quantity.
Select Principles
Which conservation laws or equations govern this situation? Newton's laws? Energy conservation? Kinematics?
Solve and Check Units
Solve algebraically first, then substitute numbers. Always track units — they reveal mistakes.
After each problem, ask: "Does this answer make physical sense?" A speed of 10⁶ m/s for a thrown ball doesn't — check your work. Sanity-checking is the mark of a physics thinker rather than a formula-applier.
How to Build Physical Intuition
Physical intuition is built by connecting equations to physical reality. When you learn that F = ma, don't just memorise the letters — think through the implications: "A larger force produces greater acceleration. A larger mass resists acceleration more. What does this mean for a car vs. a bicycle?" Every equation tells a physical story.
The Feynman technique is extremely powerful for physics. After studying a topic, close your notes and explain: "A charged particle near a wire experiences a force because…" If you stumble, you've found a gap to fill. This is far more effective than re-reading the same paragraph.
Conceptual questions before calculation
Many physics courses include conceptual questions alongside calculation problems — students often skip them, prioritising calculation practice. This is a mistake. Conceptual questions directly test and build physical intuition. A student who can answer "which ball hits the ground first?" from a qualitative argument understands physics at a deeper level than one who can only calculate with kinematics equations.
Formula Sheets and Memorisation
Rather than memorising every formula, focus on understanding the core 10–15 fundamental equations in each topic, and understand their derivations. Understanding where a formula comes from means you can reconstruct it if you forget it, and you can modify it for unusual situations. Many derived formulas (like the range equation in projectile motion) are just rearrangements of fundamentals — don't memorise them separately.
For topics that require remembering specific values (constants, unit conversions), use spaced repetition flashcards. Revaldo AI can generate these from your notes or a table of constants in seconds.
Exam Preparation Strategy for Physics
Two weeks before your physics exam, shift entirely to active practice. Work through past exam papers under timed conditions — this is the single highest-leverage activity at this stage. When you encounter a problem you can't solve, invest serious time trying before looking at the solution. The struggle itself builds the problem-solving circuits in your brain.
After finishing each past paper, analyse your errors systematically. Categorise each mistake: was it a conceptual misunderstanding, an algebraic error, a unit error, or a failure to draw a diagram? Each category requires a different remediation.