What is the similarities between magnetism and gravity?
Gravity is a force acting on an object with mass, magnetism is a force exerted by virtue of charged particles. Both are based on ferrous material, one is created by mas the other by the movement of the mass.
Why is gravitational force a non contact force?
In this the force is exerted by object without coming in contact with each other. Gravitational force is considered to be a non-contact force because it is an attracting force which does not include contact between the objects to exert force.
Is gravity linear or exponential?
Fg is directly and linearly proportional to each mass — thus the linear graph. We generally think of gravity in terms of one variable mass and one fixed mass, like a planet.
Does moon phase affect weight?
The Moon has one-sixth the gravity that Earth does. So if you want to know how much you’d weigh on the Moon, take your weight on Earth and divide it by 6. However, mass is NOT the same as weight. Your mass, the amount of matter that makes up your composition, will not change on the Moon.
What happens when the moon is directly overhead?
So, when the Moon is directly above you the gravitational force of Moon acts “upwards” i.e. in directly opposite direction to the gravitational force of the Earth acting downwards, i.e. effectively pulling you away from Earth’s centre, hence making your resulting weight least among all other positions of the Moon.
What is zenith moon?
One can say zenith moon as a counterpart to noonday sun, although it is not nearly as common. Note that the astronomical term zenith actually refers to the point directly overhead the observer, not the highest position a celestial object rises over the horizon, which would be its culmination.
Is the moon ever directly overhead?
Thus, the Moon cannot be directly overhead of any point on the surface of the Earth if that point is 28.64 degrees above or (by an symmetric argument) below the equator. Thus, the Moon cannot appear in every location in the sky for a given location on Earth.
Is the moon ever in Zenith?
The Full Moon is at its Zenith at midnight. The Full Moon sets as the Sun is rising. The Full Moon is not visible during the daytime. The Full Moon is only visible from sunset to sunrise.
What does Zenith mean in English?
1 : the point of the celestial sphere that is directly opposite the nadir and vertically above the observer — see azimuth illustration. 2 : the highest point reached in the heavens by a celestial body. 3 : culminating point : acme at the zenith of his powers— John Buchan.