Class 7 Exam  >  Class 7 Videos  >  Social Studies (SST) Class 7  >  Ocean Tides and Currents

Ocean Tides and Currents Video Lecture | Social Studies (SST) Class 7

This video is part of
64 videos|340 docs|46 tests
Join course for free
64 videos|340 docs|46 tests

FAQs on Ocean Tides and Currents Video Lecture - Social Studies (SST) Class 7

1. What causes ocean tides?
Ans.Ocean tides are primarily caused by the gravitational pull of the moon and the sun on the Earth's oceans. The moon's influence is stronger because it is closer to Earth, resulting in the regular rise and fall of sea levels known as tides.
2. How often do tides occur?
Ans.Tides typically occur twice a day in most locations due to the Earth’s rotation and the gravitational effects of the moon and sun. This results in two high tides and two low tides approximately every 24 hours.
3. What are tidal currents?
Ans.Tidal currents are the horizontal movement of water that occurs as tides rise and fall. As water moves into shore during high tide, it creates an incoming current, and as water recedes during low tide, it creates an outgoing current.
4. How do tides affect marine life?
Ans.Tides play a crucial role in marine ecosystems by influencing feeding patterns, breeding cycles, and the distribution of nutrients. Many marine organisms, including fish and crustaceans, depend on tidal movements for spawning and feeding.
5. Can tides be predicted?
Ans.Yes, tides can be predicted using mathematical models that take into account the positions of the moon, sun, and Earth, as well as local geographical features. Tide tables and charts are generated to help predict tidal patterns for specific locations.

Up next

Explore Courses for Class 7 exam
Related Searches

past year papers

,

pdf

,

Sample Paper

,

Important questions

,

Exam

,

Objective type Questions

,

Ocean Tides and Currents Video Lecture | Social Studies (SST) Class 7

,

video lectures

,

Ocean Tides and Currents Video Lecture | Social Studies (SST) Class 7

,

MCQs

,

Previous Year Questions with Solutions

,

Summary

,

study material

,

Viva Questions

,

shortcuts and tricks

,

practice quizzes

,

ppt

,

Ocean Tides and Currents Video Lecture | Social Studies (SST) Class 7

,

Semester Notes

,

mock tests for examination

,

Free

,

Extra Questions

;