When you are increasing upwards in an elevator, you feel a rise in evident weight.

A range measures the full amount of force pushing down on it, and if you were to step on a scale in an elevator, you would certainly see an increase in its analysis.

You are watching: When you are standing on a scale in an elevator, what exactly does the scale measure?

However, when accelerating upwards just the normal force boosts -- exactly how does this analyze to a boost in the "downward push" necessary for a rise in evident weight?

Similarly, as soon as increasing downwards, the normal force decreases but how does this translate to a decrease in the "downward push" essential to result in a decrease of obvious weight.


As you sassist correctly: as you acceleprice upwards, the normal pressure acting on you will certainly rise. Now look at the case from the scale"s "perspective" -- think about the forces acting on the scale:

Since the ground (i.e. the range on which you stand) applies a normal force $F_N$ (upwards) on you, Newton"s 3rd law states that you need to also be applying a pressure $F_N$ (downwards) on the range.

To summarize: the scale will measure the magnitude of the normal pressure acting on you; which is likewise the magnitude of the force you exert on the scale (by Newton"s third law).


The normal pressure will be equal to the weight (which is a force) if the object is "resting" on the surconfront which is creating the normal force. Essentially weight is always obvious bereason the weight of a 10kg mass on earth is various than its weight on mars which is additionally different than its weight in an elevator on earth (unmuch less you increased the elevator accordingly to complement the force the mass "feels" resting on the surconfront of mars.)

The normal force is the pressure that is "needed" to prevent the object (or a humale in an elevator) from falling via the surconfront that it is resting on. It is a force that opposes the force that is pressing an object onto a surconfront. On earth the ground gives a normal force to proccasion you from falling via right into the facility of the earth. A thin piece of paper may be enough to administer an extremely great normal force for an ant (tiny bit massed creature) yet more than likely not for a humale (on earth of course).

**On a side note, if you were on the sunlight the force of gravity (aside from the heat melting the paper) would be extremely huge and also might provide the ant enough weigh to rip via the paper (in this case the normal force would certainly fail to perform its task which is to apply enough pressure back to an object to keep it on its surface and also not allow it to fall with its surconfront. Understanding this is vital to knowledge the normal pressure.

See more: Why Is It Important That Gametes Are Haploid Cells : Gametes And Spores

The scale is exerting a normal pressure on you. The range is providing a normal force which counters any kind of force you are imposing on it and thats why the analysis changes when the acceleration of the elevator transforms (bereason once the acceleration of the elevator alters your weight changes (because ma=F and when the downward force increases (when elevator is going up) the normal force rises. Or as soon as the downward force decreases (when the elevator is going down) the normal pressure decreases. The normal pressure is equal to the weight. So if you recognize the normal pressure you recognize the weight and vise versa. They are equal but opposite pressures. Hope this helps.