Ocean Waves and Tsunamis Concepts

The video explains how ocean waves are formed by various forces. Wind is a primary factor, creating surface waves through air movement and pressure differences. Tidal forces from the moon and sun also contribute, as does the Earth's rotation. Tsunami waves result from tectonic activities like earthquakes and volcanic eruptions. Other wave types include SE waves and rogue waves, which are combinations of surface waves.

What percentage of the Earth's surface is covered by oceans?

• 50%

• 70%

• 80%

• 60%

What is the primary cause of wind that leads to the formation of ocean waves?

• Gravitational pull

• Earth's rotation

• Differential heating

• Tectonic activity

How does wind contribute to the formation of ocean waves?

• By altering salinity

• Through gravitational pull

• Through drag and friction

• By increasing water temperature

Which celestial bodies primarily influence tidal forces?

• Mars and Venus

• Jupiter and Saturn

• Earth and Mars

• Moon and Sun

What is the term used to describe the attraction of ocean water towards the moon and sun?

• Ripples

• Currents

• Tides

• Waves

What natural events can lead to the formation of tsunami waves?

• Tornadoes

• Droughts

• Underwater earthquakes

• Hurricanes

Which of the following is NOT a cause of tsunami waves?

• Underwater volcanic eruptions

• Landslides

• Wind

• Meteor impacts

What are SE waves?

• Waves caused by wind

• Enclosed waves within a body of water

• Tsunami waves

• Waves caused by tides

What are rogue waves?

• Waves caused by tides

• Waves caused by tectonic activity

• Waves caused by wind

• A combination of surface waves

Which type of wave is formed by the multiplication of surface waves?

• Tidal wave

• Tsunami

• SE wave

• Rogue wave