Physics Practice Test – Pressure (Solid, Liquid and Gas) Questions with Answers and Explanations

A given barometric altimeter reads zero Pascal _______ (JAMB 2019)

A. in the atmosphere
B. in the sea
C. on land
D. in outer space

The height at which the atmosphere ceases to exist is about 80 km, If the atmosphere pressure on the ground level is 760 mmHg, the pressure at a height of 20 km above the ground level is ______ (JAMB 2001)

A. 380 mmHg   B. 190 mmHg  C. 570 mmHg    D. 480 mmHg

In the Hare’s apparatus, water rises to a height of 26.5cm in one limb. If a liquid rises to a height of 20.4 cm in the other limb, what is the relative density of the liquid? (JAMB 2008)

A 0.8    B. 1.1     C. 1.2      D. 1.3

The height of a column with normal atmospheric pressure is ______ (JAMB 2022)

A. 760 cm   B. 76 cm   C. 7.6 cm   D. 0.76 cm

The diagram above shows a lift pump with valves at P and Q. Dining a downward stroke of the piston ______ (JAMB 1999)

A. both valves are open
B. P is open while Q is closed
C. P is closed while Q is open
D. both values are closed