Tides
1: What are tides?
A tide is the periodic rise and fall of a body of water due to gravitational interactions between the sun, moon and Earth
A tide is the periodic rise and fall of a body of water due to gravitational interactions between the sun, moon and Earth
2: What causes tides? Explain in detail (show diagram)
Gravity is one major force that creates tides; ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth.
3: Where do tides occur?
Two tidal bulges are created on opposite sides of the Earth due to the moon's gravitational force and inertias counterbalance
Gravity is one major force that creates tides; ocean tides result from the gravitational attraction of the sun and moon on the oceans of the earth.
3: Where do tides occur?
Two tidal bulges are created on opposite sides of the Earth due to the moon's gravitational force and inertias counterbalance
4: Explain- High and low tides (difference)
High and low tides are caused due to the gravitational forces of moon and sun acting on ocean water The moon and the earth have gravitational pulls toward each other. High tide is when the moon pulls the water up further onto the beach creating less sand space. Low tide is when the moon pulls the sea out further creating more sand space.
5: Which object exerts the most force on the tidal bulge? Why?
It arises because the gravitational force exerted by one body on another is not constant across its diameter ..There is a mutual attraction between the moon and the solid earth which can be considered to act on its center of mass.The perturbing force is sometimes in such cases called a tidal force, it is the difference between the force exerted by the third body on the second and the force exerted by the third body on the first.
In the case of an infinitesimally small elastic sphere, the effect of a tidal force is to distort the shape of the body without any change in volume.
6: What happens when the sun and moon align? What happens when they are perpendicular to each other?
An eclipse. Neap tides are especially weak tides. They occur when the gravitational forces of the Moon and the Sun are perpendicular to one another (with respect to the Earth). Neap tides occur during quarter moons.
7: What are some of the other factors that affect tides?
Density, wind, gravity.
8: What are the zones of the intertidal zone?
is the area that is above water at low tide and under water at high tide (in other words, the area between tide marks). This area can include many different types of habitats, with many types of animals, such as starfish, sea urchins, and numerous species of coral.
9: What are some of the challenges for the critters of the intertidal zone? Explain.
Hazards include being smashed or carried away by rough waves, exposure to dangerously high temperatures, and desiccation.Typical inhabitants of the intertidal rocky shore include urchins , sea anemones , barnacles , chitons, crabs, isopods , mussels, sea stars , and many marine gastropod molluscs such as limpets and whelks
10: How do the intertidal organisms COPE with the harsh environment?
Many of the creatures that live in the highest intertidal zones either have the ability to close themselves up into their shells as a shelter against drying out, or are mobile enough to take cover.
11: What are some of the adaptations that help organisms cope with wave action?
The harsh conditions in the intertidal zone cut down on competition for food and for space by excluding many animals.And the shallow water transmits the sunlight for bottom-dwelling plants' need for photosynthesis.
Life in the Intertidal Zone
Global Impact
What is the global impact of tides? Explain.
Redistributing heat & nutrients, and helps regulate the climate.
Global Impact
What is the global impact of tides? Explain.
Redistributing heat & nutrients, and helps regulate the climate.