Movements of Ocean Water
CBSE · Class 11 · Geography
Summary of Movements of Ocean Water for CBSE Class 11 Geography. Key concepts, important points, and chapter overview.
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Overview
Ocean water is constantly moving through waves, tides, and currents. These movements are shaped by the sun, moon, winds, gravity, Earth’s rotation, and differences in temperature and density. Waves mainly transfer energy, tides cause regular rise and fall of sea level, and currents move large volume
Key Concepts
Ocean water moves in two main
Ocean water moves in two main ways. Horizontal motion includes waves and currents. Vertical motion includes tides and also upwelling and sinking of wa
Waves are the energy that moves
Waves are the energy that moves across the ocean surface, not the water itself. Water particles move in small circles as a wave passes. Wind supplies
Wave height is the vertical distance
Wave height is the vertical distance from trough to crest. Wave amplitude is one-half of wave height. Wavelength is the horizontal distance between tw
A tide is the periodical rise
A tide is the periodical rise and fall of sea level, once or twice a day, mainly due to the attraction of the sun and the moon. Surges are different b
The major causes of tides
The major causes of tides are gravitational pull and centrifugal force. The moon has the stronger effect, and the sun also contributes. These forces c
Learning Objectives
- Understand the main forms of movement in ocean water: waves, tides, and currents.
- Distinguish between horizontal and vertical movement of ocean water.
- Explain the formation and characteristics of waves.
- Describe the causes, types, and importance of tides.
- Identify the forces that influence ocean currents and their major patterns.
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
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