Marine Biology Chapter 3 Flashcard

Front

What is the definition of amplitude in the context of ocean waves?

Back

Amplitude is the height of the wave measured from the rest position to the crest or trough.

Front

What are the two main types of ocean currents?

Back

The two main types of ocean currents are surface currents and deep currents.

Front

What is a trough in ocean waves?

Back

A trough is the lowest point of a wave, located between two crests.

Front

How do the Moon and the Sun affect tides?

Back

The Moon's gravitational pull primarily causes tides, but the Sun also has a significant effect on tidal patterns.

Front

What is the relationship between tidal patterns and ocean aspects?

Back

Tidal patterns influence various aspects of the ocean, including coastal ecosystems, marine life behavior, and sediment transport.

Front

What is the role of global winds in ocean currents?

Back

Global winds drive surface currents in the ocean, but they are not directly influenced by tidal patterns.

Front

What is the significance of the crest in ocean waves?

Back

The crest is the highest point of a wave, representing the maximum energy and height of the wave.

Front

What factors can influence the amplitude of ocean waves?

Back

Factors influencing amplitude include wind speed, duration of wind, and the distance over which the wind blows (fetch).

Front

What is the difference between surface currents and deep currents?

Back

Surface currents are driven by wind and occur in the upper layer of the ocean, while deep currents are driven by differences in water density and temperature.

Front

What is the effect of the Sun on tidal ranges?

Back

The Sun's gravitational pull can enhance or diminish tidal ranges, leading to spring tides (higher) and neap tides (lower).