Which description explains why there are two spring tides per month?
Earth rotates in and out of a tidal bulge created by gravitational forces. Earth revolves around the tidal bulges created by gravitational forces. Earth moves closer to the sun and moon twice a month.
Which description explains why there are two spring tides per month 3 points?
The moon and sun are at a 90-degree angle to Earth twice a month. Neap tides are also known as moderate tides. The lunar tide is partially cancelled when the moon and the sun are at a 90-degree angle to Earth, or being at right angles. This event happens twice a month thus creating neap tides twice a month also.
Which description explains why there are two high and two low tides in a day?
Answer: This means that the ocean bulges at the side closest to the moon as well as on the side farthest from the moon. As the Earth spins underneath the moon so the bulged oceans move along the surface of Earth to stay positioned below the moon. As a result, the tides are high twice a day and low twice a day.
Which description explains why there are two high and two low tides in a day Earth moves closer to the sun and moon twice a day Earth revolves around the tidal bulges created by gravitational forces Earth rotates in and out of a tidal bulge twice a day the moon’s?
Because the tidal force of the Moon is more than twice as strong as the Sun’s, the tides follow the lunar day, not the solar day. It takes half a lunar day, on average 12 hours and 25 minutes, from one high tide to the next, so we have high and low tides nearly twice a day.
Why are there 2 tidal bulges?
Gravity and inertia act in opposition on the Earth’s oceans, creating tidal bulges on opposite sites of the planet. Because water is fluid, the two bulges stay aligned with the moon as the Earth rotates (Ross, D.A., 1995). The sun also plays a major role, affecting the size and position of the two tidal bulges.
Why are there two neap tides monthly?
Neap tides, which also occur twice a month, happen when the sun and moon are at right angles to each other. During full or new moons—which occur when the Earth, sun, and moon are nearly in alignment—average tidal ranges are slightly larger. This occurs twice each month.
Which has the highest tide in the lunar cycle?
Then the pull on the tides increases, because the gravity of the sun reinforces the moon’s gravity. In fact, the height of the average solar tide is about 50 percent of the average lunar tide. Thus, at new moon or full moon, the tide’s range is at its maximum. This is the spring tide: the highest (and lowest) tide.
Does the full moon affect the tides?
When the earth, moon, and Sun line up—which happens at times of full moon or new moon—the lunar and solar tides reinforce each other, leading to more extreme tides, called spring tides. When lunar and solar tides act against each other, the result is unusually small tides, called neap tides.
Why does a full moon cause higher tides?
To find out why the tide is higher when there’s a full moon, we went to University of Delaware professor of physics and astronomy, Harry Shipman, who explained: “Tides are higher when the moon is full because at that time the gravity from the moon and sun are pulling together on the earth.