Difference between revisions of "Weight"
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Latest revision as of 20:57, 21 March 2007
Contents
Definition
The weight of an object is equal to the force of gravity acting on it.
Relationship to mass
The weight of an object is equal to its mass multiplied by the local gravitational field strength.
Apparent weight
The apparent weight of an object is the weight perceived with reference to some kind of contact force. For example, an object sitting on a set of bathroom scales immersed in water will have a lower apparent weight than when it is in air. This is because the scales essentially measure the normal reaction force on the object, and this is reduced by the effects of buoyancy.
Astronauts in the space shuttle in orbit have no apparent weight, since the walls of the shuttle exert no reaction force on them under ordinary circumstances.
Apparent weight should not be confused with weight or mass.
Get to know your weight on other worlds!
- So the gravity on Mars and moon Europa means eating those extra bagels will not slow you down...so how much do you weigh on those world? Check it out at:
