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