tidal currents

Question 1

it flows continuously with the directions changing through all the points of the compass during the tidal period

the cycle is completed in 12 hours and 25 minutes

Answer 1

rotary current

Question 2

flows alternately in approximately opposite directions with an instant or short period of slack water

prevalent in rivers or straits or where the direction of flow is more or less restricted to certain channels

Answer 2

reversing current

Question 3

generated largely by the continuously changing difference in height of water at the two ends

the tides at the two ends of a strait are seldom in phase or equal in range

Answer 3

hydraulic current

Question 4

the advance of the low water trough is so much retarded that the crest of the rising tide overtakes the low, and advances upstream as a churning, foaming wall of water

Answer 4

bore

Question 5

a qausi-circular movement of water whose area is relatively small in comparison to the current with which it is associated

Answer 5

eddy

Question 6

small waves formed on the surface of water by meeting of opposing tidal currents or by a tidal current crossing an irregular bottom

Answer 6

tide rips

Question 7

the movement of water toward the shore or upstream

Answer 7

flood

Question 8

the movement of water away from the shore or downstream

Answer 8

ebb

Question 9

the direction toward which the current flows

Answer 9

set

Question 10

the speed or velocity of the current

Answer 10

drift