do people weigh more at night since the sun is below them increasing gravitational pull ???

Question

has there ever been any studies on this ???

Answer 1

The answer is yes. Calculate your "solar weight"

F = G (m sun) (m you) / (distance to sun)^2

Compare it to your "terrestrial weight"

F = G (m earth) (m you) / (earth's radius)^2.

The solar weight is barely significant. Do the same thing to calculate a lunar weight.

The gravitational forces of the sun and moon do affect things like tides. The moon matters more (as you know if you did the calculation above). Tides are strongest when the sun and moon work together, and weakest when they pull across from each other.

Answer 2

the real Q should have been does a 1Kg mass have a greater weight at night. by this you would realy be meaning has the gravitational field strength at the point in space where the mass is changed and if so in what way.

A. remember, to all intents and purposes, we can assume that the sun is teh staionary body. so the mass is moving in a spiral path around the sun. so in theory at any point when the suns g field will be negating part of the Earths g field then yes the weight of the mass would be less. however the changes you r talking about are so small as not to be readily noticed, otherwise this would need to be taken into consideration when building structures such as bridges, etc. in fact it is the moon that has a more influential role on the weight of (or pull on) objects, eg tides of the oceans

Answer 3

Neither, because it is more complex than just where the Sun is. There are compelx dynamical interactions going on between the Earth and Sun and Moon and planets and even the galaxy. For example, the tides are usually though of as the Moon's gravity pulling water up when it is overhead, but there are two high tides per day; one on the same side as the Moon and one on the opposite side of Earth. This is because the Moon does not orbit a stationary Earth; the Earth and Moon orbit each other around their common center of gravity. Because the Earth is much bigger than the Moon, that center of gravity is much closer to the center of the Earth than it is to the center of the Moon. But since it is not AT the center of the Earth, there is some centrifugal force on the opposite side causing that other high tide. A similar effect is going on between the Earth and Sun. This is just a small sample of the many factors that you should have to consider to calculate your exact theoretical weight at different times of day. But in any case, the difference would be extremely small. Too small to measure easily and totally unimportant.

Answer 4

Yes, but the effect wouldn't be perceptible. The Sun's gravitational pull on earthly masses is almost 200 times less than that of Earth itself.

Answer 5

no they tend to weigh more bc of all the food they have eaten thruout the day.

Answer 6

you have the foods

Answer 7

idk.. why dont you weigh yourself and find out.. loser