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Erstellt von Nat Waterworth
vor fast 9 Jahre
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define newtons law of gravitiation
what is G, its value and units
describe what a force - distance graph looks like
whats the mass of the earth and its radius?
what is a gravitational field?
define gravitational field strength
is gravitational field strength a vector or scalar?
if a = F/m and g=F/m, what statement can be made?
what is a gravitational field around a spherical object called?
what do gravitational field lines show?
3 features of field lines
derive the formula of gravitational field strength when dependent on volume and density
define gravitational potential and give units
why is the gravitational potential around a mass always negative?
define gravitational potential energy
formula for gravitational potential energy
4 features of gravitational equipotentials
in a uniform gravitational field give the formula to work out g and state whether g is constant or variable
whats the formula to find out change in potential in a non uniform gravitational field
derivation of time period and radius of a planet
why is the energy of a satellite in orbit always equal to a constant?
why does a satellite move around a planet at a constant speed
why do astronauts appear weightless? and satellite remain in orbit?
4 features of geostationary satellites
4 features of polar satellites