Here are 10 one-word answer type questions on Waves, along with their answers and explanations:
1. What is the alternate rising and falling of water on the ocean’s surface called?
Answer: Waves
Explanation: Waves are the up-and-down movements of ocean water caused by wind scraping across the surface .
2. Which force primarily causes waves to form?
Answer: Wind
Explanation: Winds exert force on the ocean surface, creating waves. The stronger the wind, the larger the waves .
3. Which type of wave is caused by underwater earthquakes or volcanic eruptions?
Answer: Tsunami
Explanation: Tsunamis are giant waves generated by underwater seismic activities, which displace large amounts of water .
4. Which country’s language does the word ‘Tsunami’ originate from?
Answer: Japanese
Explanation: The word ‘Tsunami’ means “Harbor Waves” in Japanese, as they cause massive destruction in coastal harbors .
5. What is the major factor affecting the height of waves?
Answer: Wind speed
Explanation: Faster winds transfer more energy to the water, increasing wave height. Storms generate the highest waves .
6. Which natural event caused the 2004 Indian Ocean tsunami?
Answer: Earthquake
Explanation: A massive 9.0 magnitude earthquake near Sumatra caused a sudden ocean floor displacement, creating devastating tsunamis .
7. What is the term for waves generated by strong winds during storms?
Answer: Storm waves
Explanation: Storm waves occur when strong winds during cyclones or hurricanes push massive amounts of water, leading to coastal flooding .
8. Which factor determines the speed of waves?
Answer: Water depth
Explanation: Waves travel faster in deep water but slow down in shallow water as they interact with the ocean floor .
9. Which wave property measures the distance between two successive crests or troughs?
Answer: Wavelength
Explanation: The wavelength is the horizontal distance between two successive wave crests or troughs, influencing wave energy .
10. What happens to waves as they approach the shore?
Answer: Break
Explanation: As waves move towards shallow water, their base slows down due to friction with the sea floor, causing the wave to break .
These questions summarize key concepts of waves, including their formation, properties, and impact.
