Movements of Ocean Water Ch (13) Practice Quiz in English Part 1 || Class 11 Geography Book -1 Practice Quizzes in English Posted on February 27, 2025February 27, 2025 by Anshul Gupta0% 0 votes, 0 avg 1 Movements of Ocean Water Ch (13)Practice Quiz in English Part 1 || Class 11 Geography Book -1 Practice Quizzes in English 1 / 201. What are gyres? A. Vertical movements of water caused by tides B. Waves generated by wind C. Large accumulations of water and circular currents in ocean basins D. Small-scale circular currents in the ocean Explanation: Gyres are massive systems of rotating ocean currents, usually driven by wind and the Coriolis force.2 / 202. What is the time interval between two successive wave crests or troughs called? A. Wavelength B. Wave amplitude C. Wave height D. Wave period Explanation: Wave period is the time it takes for two successive wave crests or troughs to pass a fixed point.3 / 203. What are ocean currents? A. Waves generated by wind B. Random movements of water in the ocean C. Regular and continuous flows of water in a definite direction D. Vertical movements of water caused by tides Explanation: Ocean currents are like rivers in the ocean, flowing in a specific path and direction.4 / 204. What are cold-water ocean currents? A. Currents that have no specific temperature B. Currents that flow from the equator towards the poles C. Currents that are influenced by wind only D. Currents that flow from the poles towards the equator Explanation: Cold-water currents originate near the poles, where cold, dense water sinks and slowly moves towards the equator.5 / 205. How does water density affect ocean currents? A. Denser water tends to sink, while lighter water rises. B. Denser water tends to rise, while lighter water sinks. C. Water density has no effect on ocean currents. D. Water density only affects the speed of currents. Explanation: Differences in water density, caused by variations in temperature and salinity, drive vertical movements in ocean currents.6 / 206. What is the time between low tide and high tide, when the water level is rising, called? A. Ebb B. Neap C. Flood D. Spring Explanation: The flood tide is when the water level is rising or flowing between low tide and high tide.7 / 207. What is the speed of an ocean current called? A. Tide B. Wave C. Drift D. Flow Explanation: The term “drift” refers to the speed of an ocean current, typically measured in knots.8 / 208. What are the two types of forces that influence ocean currents? A. Gravitational forces and Coriolis forces B. Primary forces and secondary forces C. Surface forces and deep-water forces D. Wind forces and tidal forces Explanation: Primary forces initiate the movement of water, while secondary forces influence the direction and flow of currents.9 / 209. What are the primary forces that initiate ocean currents? A. Upwelling and downwelling B. Solar energy, wind, gravity, and Coriolis force C. Temperature, density, and pressure D. Wind, tides, and salinity Explanation: These forces work together to start the movement of ocean water, creating currents.10 / 2010. What is the Coriolis force? A. The force that causes upwelling B. The force that deflects ocean currents due to Earth's rotation C. The force that generates wind D. The force that causes tides Explanation: The Coriolis force causes currents to curve to the right in the Northern Hemisphere and to the left in the Southern Hemisphere.11 / 2011. What is the highest point of a wave called? A. Crest B. Amplitude C. Wavelength D. Trough Explanation: The crest is the peak or highest point of a wave.12 / 2012. What is the primary cause of waves in the ocean? A. Wind B. Gravitational pull of the moon C. Upwelling of cold water D. Ocean currents Explanation: Wind provides the energy that causes waves to form and travel across the ocean surface.13 / 2013. What are warm-water ocean currents? A. Currents that are influenced by wind only B. Currents that have no specific temperature C. Currents that flow from the poles towards the equator D. Currents that flow from the equator towards the poles Explanation: Warm-water currents carry warmer water from the equator towards the poles, replacing the sinking cold water.14 / 2014. What is the horizontal distance between two successive wave crests called? A. Wave height B. Wave period C. Wave amplitude D. Wavelength Explanation: Wavelength is the horizontal distance between two consecutive wave crests or troughs.15 / 2015. What is the primary cause of tides? A. Gravitational pull of the moon and sun B. Upwelling of cold water C. Wind D. Ocean currents Explanation: The gravitational forces of the moon and, to a lesser extent, the sun, cause the ocean water to bulge, creating tides.16 / 2016. What are neap tides? A. Tides with the lowest high tides and highest low tides B. Tides caused by wind and ocean currents C. Tides that occur only in the summer season D. Tides with the highest high tides and lowest low tides Explanation: Neap tides occur when the sun and moon are at right angles to each other, causing their gravitational forces to partially cancel each other out, resulting in less extreme tides.17 / 2017. How many high tides and low tides occur in a day? A. One high tide, two low tides B. Two high tides, one low tide C. One high tide, one low tide D. Two high tides, two low tides Explanation: Most coastal areas experience two high tides and two low tides in a roughly 24-hour period.18 / 2018. What are spring tides? A. Tides that occur only in the spring season B. Tides caused by wind and ocean currents C. Tides with the lowest high tides and highest low tides D. Tides with the highest high tides and lowest low tides Explanation: Spring tides occur when the sun, moon, and Earth are aligned, resulting in the strongest gravitational pull and the most extreme tides.19 / 2019. How are tides important for navigation? A. They help in predicting weather patterns. B. They affect water depth, especially in harbors and estuaries. C. They assist in determining the best fishing locations. D. They provide a source of renewable energy. Explanation: Tidal heights are crucial for navigation, particularly in areas with shallow entrances, as they determine whether ships can safely enter or leave harbors.20 / 2020. What is the time between high tide and low tide, when the water level is falling, called? A. Ebb B. Flow C. Spring D. Flood Explanation: The ebb tide is when the water level is receding or falling between high tide and low tide.Please insert your information to see your ranking अपनी Ranking जानने के लिए कृपया अपनी जानकारी भरे NamePhone Number Your score isThe average score is 65% 0% Restart quiz Category: Class 11 Geography Quizzes in English
