PDF chapter test TRY NOW
1. On what factors the pressure exerted by the liquid depends?
a. The pressure exerted by a liquid at a point is determined by its .
b. The density of the liquid is denoted by the letter .
2. Why does a helium balloon float in the air?
a. Helium gas is dense than air.
b. floats because its molecules are lighter than the nitrogen and oxygen.
3. Why it is easy to swim in river water than in seawater?
a. Seawater is than river water.
b. Upthrust is greater in sea water.
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