Tides and Their Causes
Physics ⇒ Earth and Space Physics
Tides and Their Causes starts at 8 and continues till grade 12.
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A coastal city experiences its highest tide when the Moon is full. What type of tide is this, and why does it occur?
Calculate the ratio of the tidal force exerted by the Moon to that exerted by the Sun, given that the Sun's mass is about 27 million times that of the Moon, but it is about 390 times farther from Earth.
Describe how the alignment of the Sun, Moon, and Earth affects the occurrence of spring and neap tides.
Describe how tidal energy can be harnessed for electricity generation.
Describe the difference between diurnal and semidiurnal tides.
Explain the concept of tidal locking and give an example from our solar system.
Explain why some locations on Earth experience mixed tides, with one high tide higher than the other each day.
Explain why the Sun, despite being much more massive than the Moon, has a smaller effect on tides.
Explain why there are usually two high tides and two low tides each day at most coastal locations.
If the distance between the Earth and the Moon were doubled, how would the gravitational force between them change?
The gravitational force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between them. What law is this?
What is the primary cause of tides on Earth?
A coastal region experiences a significant decrease in tidal range over several days. Assuming no unusual weather events, which lunar phase is most likely occurring, and what is the alignment of the Sun, Earth, and Moon?
A planet has a moon with half the mass of Earth's Moon and orbits at the same distance from the planet as the Moon does from Earth. Compare the tidal force experienced by the planet to that experienced by Earth due to its Moon. Show your reasoning.
Explain how the Coriolis effect influences tidal currents and the distribution of tidal bulges around the Earth.
If the period between two consecutive high tides at a certain location is 12 hours and 25 minutes, calculate how many high tides will occur at that location in a 31-day month. Show your calculations.
