EXERCISES: I. Change the underlined word with the one given in brackets.

HEAT TRANSFER CONVECTION

Heat energy can be transferred from one point to another by different methods and at different rates. Heat energy resides (refuses, stays, replies) in kinetic energy of molecules and in the case of fluids, portions (forces, change, parts) of the fluid may move from point to point carrying the fast moving molecules with their energy to points where the energy per molecule is less so that the energy is transferred by the molecules moving to the new point. This is known as convection. It can be readily (slowly, easily, really) shown with water in a glass tube. Some ink added at the top allows (permits, avoids, ensures) us to follow the motion of convection. In order to get circulation we note that the heating produces a density change and hence (even, although, therefore) a pressure gradient and the density gradient cannot be parallel so that acceleration in different directions are different.

II. Translate the text HEAT TRANSFER CONVECTION

Give the opposite of:
rapidly - ,
rest - ,
heat- ,
light- ,
liquid - ,
external - ,
low- ,
tide -

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