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what is gravitational field strength?
a measure of the force of gravity in a particular location
what is the formula for weight?
weight = mass x gravity (W=mg)
what is meant by weight?
the force acting on an object (mass) due to gravity in a gravitational field
what is the gravitational field strength measured in?
newtons per kilogram (N/kg)
what is the height measured in?
metres (m)
what is gravity?
a force of attraction between objects due to their masses
what factors affect the amount of gravitational potential energy it has?
mass and distance between the objects
what is the gravitational field strength on earth?
9.8 N/kg
what do objects feel when they enter a gravitational field?
a force of attraction - this is an object's weight
what is meant by mass?
the amount of matter in an object
what is the formula for gravitational potential energy?
Ep = mgh (gravitational potential energy = mass x gravitational field strength x height)
what is the mass measured in?
kilograms (kg)
