What is the cause of bulging at the equator?
The bulging of the equator and flattening at the poles is due to the rotation of the Earth. The Earth rotation creates the centrifugal force which is the pseudo effect counter. It balances the centripetal force that acted in inward direction.
What is the equatorial bulge of Earth?
The Earth has an equatorial bulge of 42.72 km (26.5 miles) due to its rotation. That is, its diameter measured across the equatorial plane (12756.28 km, 7,927 miles) is 42.72 km more than that measured between the poles (12713.56 km, 7,900 miles).
What caused the moon’s large equatorial bulge?
Although the Moon looks quite spherical from the ground, it is flatter at its poles and wider at its equator, a trait known as an equatorial bulge. This characteristic is common; it’s usually caused by an object’s rotation around its axis.
Does the atmosphere bulge at the equator?
These differences affect gravity, being greater at the poles and lesser at the equator. With atmosphere happens the same thing. Therefore, both atmosphere and oceans have an equatorial bulge because of less gravity at very low latitudes.
What causes Earth’s equatorial bulge quizlet?
What is the equatorial circumference of the earth? an apparent outward force caused by the spinning (or rotating) of earth on its axis. This force causes the earth to bulge at the equator.
Which planet has the greatest equatorial bulge?
Saturn
Saturn, which has a rotation period of just over 10 hours and a mean density less than that of water, has the greatest equatorial bulge of all the planets, with an equatorial diameter nearly 11% greater than its polar diameter. See also Oblateness.
Which statement about Jupiter’s rings is false?
Which of the following discoveries was NOT made by Voyager 1 or 2? Jupiter has cloud bands in its upper atmosphere. Which statement about Jupiter’s rings is false? They are made of ice, like Saturn’s.
Does the Earth bulges slightly at the equator?
centrifugal forces Earth bulges slightly at the Equator. As indicated in Figure 25, the effect of the Sun’s gravity on the near bulge (larger than it is on the far bulge) results in a net torque about the centre of Earth.
Why is Earth’s equatorial diameter greater than its polar diameter?
Because the Earth spins on its axis once a day, centrifugal force causes it to flatten somewhat, making the equatorial diameter larger than the polar diameter. This gives Earth a slightly oblate shape.
What is the mechanism that produces the Earth’s magnetic field?
The magnetic field is generated by electric currents due to the motion of convection currents of a mixture of molten iron and nickel in Earth’s outer core: these convection currents are caused by heat escaping from the core, a natural process called a geodynamo.
Why are Jupiter and Saturn so much wider around their Equators?
The extra mass of Jupiter compresses its interior to a greater extent than that of Saturn. c. It is made of a different composition than Saturn, including a higher proportion of hydrogen compounds and rocks.
Which statement about Jupiter’s rings is true quizlet?
Which statement about Jupiter’s rings is true? They lie inside Jupiter’s Roche Limit. Of the jovian planets, which generates the least internal heat?