Practice physics class test — Year 2: the statics of fluids.
15 questions drawn at random from a bank of 25, on the block of the programme your teacher is finishing: every attempt is a different test. No penalty for wrong answers, so answer even if you are not sure. At the end you receive by email the correct answer to every question and your weak topics — with an account you see them straight away here on the page. The step-by-step solution unlocks with your first lesson.
A class test is the written test an Italian high-school class sits after each block of the programme; this practice version is multiple choice.
Test in ItalianThe questions of this simulator are in Italian, as in the real exam.
Programme covered by the test
- Pressure and its units (Pa, atm, bar, mmHg)
- Pascal’s principle and the hydraulic press
- Stevin’s law and communicating vessels
- Atmospheric pressure and Torricelli’s experiment
- Buoyancy and the conditions for floating
Two worked examples from the test
Il manometro di una pompa da bicicletta segna una pressione di .
A quanti bar corrisponde questo valore, sapendo che ?
Solution
- Il bar non è un'unità del SI, ma è definito in modo semplice: .
- Per passare da pascal a bar basta dividere per .
- La pressione vale quindi (circa due volte e mezza la pressione atmosferica).
Una cassa di massa è appoggiata sul pavimento su una base rettangolare di .
Quanto vale la pressione che la cassa esercita sul pavimento? ()
Solution
- La forza premente è il peso della cassa, non la sua massa:
- L'area di appoggio in metri:
- Usare al posto di dà : è la dimenticanza di . Lasciare l'area in () dà , mentre un'area convertita male () dà .
In the online practice test you will find 13 more questions like these; the correct answer to every question arrives by email.
Prefer paper? Download the test as a PDF (15 questions, 4 pages · 79 KB, ready to print). You receive the solutions by email after taking it online.
Download the PDFWhat a physics test on statics of fluids looks like
A hydraulic press with Pascal’s principle, the pressure at a given depth with Stevin, a submerged or floating body with Archimedes and generally a question on Torricelli’s experiment and atmospheric pressure.
The mistake that costs the grade
With Archimedes, using the volume of the body instead of the volume of the submerged part when the body floats. The other constant mistake is mixing up the density of the body with that of the fluid in the buoyancy formula: it is the density of the fluid that goes in.
How to use this practice test
Take it once cold, without revising and with the timer on: it is there to show you where you stand, not to look good. Then look at your weak topics, revise only those — usually two or three, not the whole chapter — and retake it after a few days. The 15 questions are drawn from a bank of 25, so the second attempt is not the same test and the scores are genuinely comparable.
Is the score not enough?
See which topics lost you the most marks, then read the typical physics mistakes in high school — or we look at your results together: the diagnostic is free.