A lab behind every question
How to Use Physics Lab — Interactive MDCAT Physics MCQs
Most MDCAT banks show you four sentences and a green tick. Physics Lab hides the picture until you pick an answer, then lets you move the sliders until the idea is clear.
·4 min read·Usman Ubaid
Sliders are the numbers in the formula
If a lab has sliders, they are the numbers in the formula under the picture. Double a radius in continuity. Flip a diode. Move t across half-lives. The readout is the sentence you should have said in the question.
A lab without sliders still moves: a projectile hangs, a phasor rotates, a decay staircase drops. Watch it once, then change the one number the trap was about.
What you get after you lock
The correct option is marked in green; a miss is rust. A one-line formula sits under the question. A written reason uses the same voice as the question. If you missed, the note names the exact mistake that option was built to catch.
Then the lab. Formula, reason, common mistake, picture — in that order — is the mark scheme, not an answer key PDF.
Retry mixes the letters
Letters mix each attempt. Retrying a chapter is not memorising ‘the answer was C’. It is meeting the same physics with new letters.
Progress lives in this browser. There is no account. There is no cloud score. That is on purpose: the work is the physics, not a leaderboard.
Phone, keys,
The layout is mobile-first. Labs pause when they leave the screen so a background tab does not spin a canvas for nothing. On a keyboard, 1–4 lock A–D.
Whenever gravity appears, m/s². Do not bring 9.8 into these numericals; the options were written for ten.
FAQ
Common questions
How large is the current MDCAT Physics practice bank?
DIFF. currently has 12,278 Physics practice MCQs across 16 chapters. The separate Physics Labs collection contains 640 questions with interactive simulations. Practice-bank counts and simulation counts are separate; not every practice MCQ has a unique lab.
Can I choose my own Physics topics and test length?
Yes. Open any Physics chapter, choose the topics you want to revise, and set a test length up to 180 questions or the selected-topic total, whichever is smaller. Use a small focused drill for a weak concept and a longer timed drill to practise pacing. Chapters can be opened in any order.
Are Physics tests timed, and when can I see answers?
Choose Tutor Mode for explanations after each selection or Timed Exam for a countdown and explanations after submission. Submit Quiz opens the confirmation screen; Submit & View Explanations opens the complete review. You can use the paper map to revisit unanswered or flagged questions before submitting.
How should I combine formula sheets, notes and MCQs?
Read the relevant chapter notes first, then write the formula with its conditions and units. Solve a short drill without looking at the sheet, review mistakes, and check whether the error came from the concept, unit conversion or arithmetic. Return to a timed drill after you can explain why the correct option works.
Should I always use in Physics numericals?
Use the value of gravitational acceleration specified in the question. Some worked examples in these guides use m/s² for simpler arithmetic; a question that gives ² must be solved with 9.8. Keep units consistent and avoid rounding intermediate calculations unnecessarily.
Can I save the complete Physics quiz review?
Yes. Submit the test to open its review, then choose Download PDF or Download Review. The saved review contains the questions from that attempt, answer choices, your answers, available correct keys and explanations. Keep it as an error log and revisit the topics you missed.