Ocean Waves and Tsunamis

Q.

Distinguish between waves and tides?

Q. The topmost point of a wave is called _______.

1. crest
2. trough
3. frequency
4. amplitude

Q. Explain spring tide and neap tide.

Q. Tsunami means ____ in Japanese.

1. huge waves
2. massive waves
3. harbour waves
4. giant waves

Q. What is the reason for formation of Tsunami?

1. Plastic waste in oceans
2. Wind variations
3. Disturbance in oceanic crust
4. Oil spills from ships

Q. Which among the following factors does not play an important role in determining the height of a wave?

1. Gravitational pull from the moon
2. Wind direction
3. Disturbances in the ocean floor
4. Wind speed

Q. Which among the following factors does not play an important role in determining the height of a wave?

1. Gravitational pull from the moon
2. Disturbances in the ocean floor
3. Wind speed
4. Wind direction

Q. Which among the following factors does not play an important role in determining the height of a wave?

1. Gravitational pull from the moon
2. Disturbances in the ocean floor
3. Wind speed
4. Wind direction

Q. Tsu-na-mi means '________' wave in Japanese.

1. coastal
2. harbour
3. tidal
4. ship

Q. What do you mean by waves?

1. Alternate rise and fall of water on the ocean surface.
2. Something that moves through the ocean in response to the forces exerted by the moon and sun.
3. Continuous, predictable, directional movement of seawater driven by gravity.
4. Continuous, predictable, directional movement of seawater driven by water density.

Q. What is the reason for the formation of Tsunami?

1. Plastic waste in oceans
2. Disturbance in oceanic crust
3. Oil spills from ships
4. Wind variations

Q. The topmost point of a wave is called a while the bottom most point is called the .

1. crest
2. peak
3. channel
4. trough

Q. What is the reason for the formation of Tsunami?

1. Wind variations
2. Plastic waste in oceans
3. Disturbance in oceanic crust
4. Oil spills from ships

Q. The topmost point of a wave is called a while the bottom most point is called the .

1. crest
2. peak
3. channel
4. trough

Q. Which of the following statement(s) is/are correct about the tsunami that occurred in 2004 in India and several southern parts of Asia?

1. It happened due to the Burma plate going under the Indian plate.
2. There is a rapid withdrawal of water from the coast before the tsunami approaches it.
3. This tsunami was caused by a massive volcanic eruption inside the ocean.
4. The waves of the tsunami travelled at a speed that is comparable to that of a commercial jet plane.