Exam 9: The Tides

Which factor has the greatest tide generating effect?

An ocean basin can have a natural period of oscillation that matches the tidal day if the basin depth is _______ and its length and width are ______.

If the tide-producing force is proportional to G × M/R³, then the moon exerts a greater tide-raising force than the sun due to the difference in their masses rather than a difference in their distances from the earth.

Since the earth turns _______ the tide wave tends to move _______ around Earth.

When will tidal range be greatest?

Earth and the moon rotate around their common ________.

The shape and depth of the ocean basins control the progression of the tide wave.

A region of mixed tides tends to have more diurnal type tides if the semidiurnal component of the tide-producing force weakens.

Friction between the moving tide wave and the turning Earth acts to

The combination of diurnal and semidiurnal tides produces a ______ tide.

Neap tides occur during a full moon.

The tide wave that progresses across the oceans at low latitudes is forced by the tide-raising force to travel at a speed greater than its natural speed.

Tidal currents in the open ocean are

Tides are deep water waves.

The terms ebb and flood pertain to

Tidal waves are deep water waves.

Open ocean tides can be monitored and recorded from satellites.

Tidal power is periodic, but it is always available at about the same time each day.

A Northern Hemisphere ocean basin with a standing-type tidal oscillation will have a standing wave that rotates counterclockwise.

Some oceanic basins promote rotary standing tide waves. In the Northern Hemisphere, the tide wave rotates __________ and the tidal current rotates _______.