if the moon were closer to earth, high tides would: if the moon were closer to earth, high tides would: be higher than they are now. be lower than they are now. occur three or more times a day rather than twice a day.
The Correct Answer and Explanation is :
The correct answer is: be higher than they are now.
Explanation:
Tides on Earth are primarily influenced by the gravitational pull of the Moon. The gravitational force exerted by the Moon causes the water in Earth’s oceans to bulge outward, creating what we know as high tides. The opposite side of the Earth also experiences a high tide due to the inertia of water resisting the Moon’s gravitational pull. These two forces (gravitational attraction and inertia) result in two high tides and two low tides on Earth every day.
If the Moon were closer to Earth, the gravitational force between the Earth and Moon would be stronger due to the inverse square law of gravity. This law states that the gravitational force between two objects increases as the distance between them decreases. Therefore, the closer the Moon is to Earth, the greater the gravitational force it exerts on the Earth’s oceans.
This stronger gravitational pull would lead to more pronounced bulges in the ocean’s water, resulting in higher high tides and lower low tides. Essentially, the tidal range—the difference between high and low tide—would increase.
Additionally, because the Moon would be orbiting the Earth at a closer distance, it would have a stronger influence on the Earth’s rotation. The Moon’s proximity would cause tides to occur more frequently, though the number of high tides in a day would still remain two. The primary effect of the Moon’s closer orbit would be more extreme tidal fluctuations, not necessarily more frequent tides.
In conclusion, if the Moon were closer to Earth, high tides would be higher than they are now, due to the increased gravitational attraction exerted on Earth’s oceans.