Match the following
COLUMN A COLUMN B
1.FLUID A.HIGHER
PRESSURE
2.BLUNT KNIFE B.ATMOSPH
ERIC PRESS
URE.
3.SHARP NEEDLE C.SPECIFIC
GRAVITY
4.RELATIVE DENSITY D.LOWER
PRESSURE
5.HECTO PASCAL E.SAME PR-
ESSURE IN
ALL DIRECT-
ION
Answers
1. Fluid pressure – E. Same pressure in all directions
2. Blunt knife – D. Lower pressure
3. Sharp needle – A. Higher pressure
4. Relative density – C. Specific gravity
5. Hecto Pascal – B. Atmospheric pressure
The small fluid particles move uniformly in all directions and thus, the fluid pressure remains same everywhere under the water.
A blunt knife exerts lower pressure over the object to be cut, due to the larger surface area of the thicker edge.
A sharp needle exerts pressure over a minute space, for which higher pressure is centralized over that tiny area.
Relative density is also known as specific gravity that is ratio of the densities of two given substances.
Hecto Pascal is an unit for measuring atmospheric pressure, where 100 Pascal = 1 Hecto Pascal.
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