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Gravitational fields

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julia7c
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Last updated: December 4, 2025
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First submittedDecember 4, 2025
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Average score53.3%
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Hint
Answer
what do you call a field where g is constant in magnitude and direction at all points
uniform
what do you call a field that points towards a single point mass
radial
What happens to the gravitational field strength as distance increases in a radial field
decreases
What does gravity act on
all things with mass
What type of gravitational fields do point masses have
radial
what states that the gravitational force between two objects is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centres
newtons law of gravitation
what represents the distance between the centres of the two bodies
R
what is the force per unit mass due to the gravitational field
gravitational field strength
What is the value of g at the Earth's surface
9.81
Is gravitational field strength a scalar or vector quantity
vector
What is another name for gravitational field strength
acceleration due to gravity
What happens to gravitational field strength as distance increases in a radial field
decreases
what is the work done per unit mass to move an object from infinity to that point
gravitational potential
What is the gravitational potential at infinity
zero
what is the work done per unit mass to move an object from one point to another
gravitational potential difference
what are points in a gravitational field where every point has the same gravitational potential
gravitational equipotentials
Is work done when moving along a gravitational equipotential
no
What is the unit of gravitational potential
J kg^-1
What is the shape of an equipotential surface in a uniform gravitational field
horizontal planes
What is the shape of an equipotential surface in a radial gravitational field
spherical
what is time taken for a planet or satellite to complete one full orbit
orbital time period
How is the total energy of a satellite found
KE + GPE
what is the velocity an object needs to escape the gravitational pull of a planet
escape velocity
what is it when Orbital period of the satellite matches the rotation period of the body it's orbiting
synchronous orbits
What are the uses of satellites in low orbits
weather monitoring
earth observation
spy satellites
What are the uses of geostationary orbits
weather monitoring
communication
What is the relationship between orbital period and speed
inverse
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