All Questions
Tagged with weight measurements
11 questions
3
votes
2
answers
651
views
Does the Sun or Moon affect weight measurements on Earth?
The gravitational acceleration due to the Earth at its surface, $g_E$, is
$$g_E = 9.8\hbox{ m/s${^2}$}.$$
The gravitational acceleration due to the Sun at the Earth's position is
$$g_S = 5.9 \times 10^...
- 5,991
1
vote
1
answer
2k
views
Measuring Weight with Multiple Scales
If I am weighting a long tube of (nearly) uniform weight with multiple hang-scales (really a 10-ft long Helical Antenna), how do I calculate the total weight from the multiple scales?
Can I just add ...
- 133
2
votes
2
answers
6k
views
Bath-Scales weight or mass?
I read that bath scales measure body weight and not mass which means they measure m*g and not m.
If I got a reading of 50 kg, does that mean that my mass is nearly 5?
Units of m*g aren't kg so why ...
- 33
1
vote
1
answer
125
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Measurement of Changes in the Weight of a Heavy Object
I am searching for an elegant way to measure small changes in the weight of a heavy object (a potted tree) over the period of one year.
However, I do not need to know the exact weight of the heavy ...
1
vote
1
answer
91
views
I couldn't figure out something about mass and weight measurement
Today when I was studying physic for my University enterance exam I have stucked in one topic.
I understood the difference between mass and weight. Mass is the amount of material an object contains ...
- 287
2
votes
1
answer
19k
views
How can a beam balance measure mass?
In Newtonian physics, mass is the amount of matter in an object. So, how can a beam balance measure the amount of matter in an object (which is the mass of the object).
- 75
1
vote
1
answer
4k
views
Why does the scale reading depend on the position of the object on the scale and how to equalize that?
I have a KERN DS 100K0.5 industrial platform scale, range up to 100 kg, resolution 0.5 g, more or less like this:
The specifications say reproducibility 0.5 g, linearity 1.5 g.
When I stand on the ...
- 111
0
votes
1
answer
2k
views
Effect of waters changing specific gravity on objects apparent weight placed in liquid
My goal is to monitor the change in specific gravity of a liquid over a period of time. My question is: What are the appropriate formula for determining expected apparent weight of an object immersed ...
10
votes
3
answers
3k
views
How can I weigh liquid in a sealed container?
How do you measure the mass and volume of alcohol if it is in a sealed container? Are there clever ways of achieving this?
The weight of the container is not known. I can't open the container, I can'...
- 201
4
votes
1
answer
219
views
Need to weigh a sack of kittens
Hypothetical brain teaser here, no real kittens involved! -
For some bizarre reason I have a sack of kittens, I need to find the total weight of the kittens and the sack but I'm only allowed to use ...
- 151
4
votes
4
answers
2k
views
What truly is mass, and is there a direct way to measure it?
We know a mass of an object of one kilogram as an object that weighs W = mg = 9.8 N and we reference it to that, (when it should as a fundamental parameter describe weight not the opposite). But if we ...
- 558