Question bank: Chapter 5: Properties of Hydrostatics

One pascal is equal to:

The dimensional formula of pressure is:

A force of 200 N acts perpendicularly on an area of 0.5 m². The pressure is:

If the area on which a constant force acts is halved, the pressure:

A woman's pointed heel can exert a larger pressure than an elephant's foot because:

The pressure due to the liquid alone at a depth h is:

The total pressure at a point at depth h in a liquid open to the atmosphere is:

The factor that does NOT affect the pressure at the bottom of a vessel containing liquid is:

The gauge pressure at a depth of 5 m in fresh water is:

The total pressure at a depth of 10 m in fresh water is about:

The depth in water at which the gauge pressure is 2 × 10⁵ N/m² is:

If a liquid is replaced by one of twice the density, the pressure ρgh at the same depth becomes:

In a system of connecting vessels, a liquid rises to the same level in all the vessels because:

The walls of dams are thicker at the bottom because:

In a U-tube, an oil column of 12 cm balances a water column of 9.6 cm above the same separating level. The density of the oil is:

A mercury column of 2 cm in one arm of a U-tube balances a water column (above the same separating level) of height:

The height of the mercury column in a simple barometer at sea level is about:

The space above the mercury in a Torricelli barometer is:

If the barometer tube is tilted, the vertical height of the mercury column:

Standard atmospheric pressure in pascals is about:

One atmosphere equals:

One bar equals:

One torr equals:

As we climb a mountain, the atmospheric pressure:

Replacing the barometer tube with a wider one (same mercury, same place) makes the mercury height:

If water were used in a barometer, the height of the column at sea level would be about:

The manometer is used to measure the:

When the gas pressure is greater than atmospheric pressure, the manometer relation is:

The mercury level in the open arm of a manometer is 20 cm higher than in the arm connected to the gas. The gas pressure is:

The mercury level in the open arm is 16 cm lower than in the arm connected to the gas. The gas pressure is:

The systolic blood pressure of a healthy person is about:

The diastolic pressure is the:

A car tyre inflated to a very low pressure causes:

Pascal's principle states that pressure applied to an enclosed liquid is transmitted:

In a hydraulic press with piston areas a and A (small and large), the forces satisfy:

The mechanical advantage of a hydraulic press is:

A press has pistons of areas 5 cm² and 250 cm². A force of 20 N on the small piston gives a force on the large piston of:

The radius of the large piston is 5 times that of the small piston. The mechanical advantage is:

In an ideal hydraulic press, if the large piston moves 2 cm while the small piston moves 80 cm, the mechanical advantage is: