A 10g mass suspended from a string is immersed into a liquid

In summary, a 10g mass is suspended from a string in a beaker of liquid, creating an upthrust of X Newton. The weight of the beaker and liquid is 500g. When the boy holds the string, preventing the mass from touching the bottom of the beaker, there will be a certain reading on the weighing scale. However, when the mass is allowed to sit on the bottom of the beaker, the reading on the scale may change due to the increased weight on the scale. It ultimately depends on the sensitivity of the scale and the accuracy of the measurements.
  • #1
GreenTea09
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A 10g mass is suspended from a string and immersed in a beaker of liquid(Weight of beaker and liquid = 500g). A boy hold the string with his hand not letting the 10g mass touch the bottom of the beaker. (let upthrust generated by mass be X Newton.)

Qn: what would be the reading on the weighing scale?

The boy repeat the process again and this time round, he let the 10g mass sits on the bottom of the beaker.

Qn: Would there be any change of reading in the weighing scale?
 
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  • #2
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FAQ: A 10g mass suspended from a string is immersed into a liquid

What happens to the mass when it is immersed into the liquid?

When the mass is immersed into the liquid, it will experience a buoyant force. This force is equal to the weight of the liquid that the mass displaces, and it acts in the opposite direction of gravity. This results in a decrease in the apparent weight of the mass.

How does the density of the liquid affect the apparent weight of the mass?

The density of the liquid plays a significant role in determining the apparent weight of the mass. If the density of the liquid is greater than the density of the mass, the mass will float and have a positive apparent weight. If the density of the liquid is less than the density of the mass, the mass will sink and have a negative apparent weight.

What happens to the string when the mass is immersed into the liquid?

The string will experience a tension force due to the weight of the mass and the buoyant force acting on it. This tension force will increase as the apparent weight of the mass decreases when it is immersed into the liquid.

How does the depth of immersion affect the buoyant force on the mass?

The buoyant force on the mass will increase as the depth of immersion increases. This is because the amount of liquid that the mass displaces also increases with depth, resulting in a larger buoyant force.

What factors can affect the accuracy of the measurement of the apparent weight of the mass in the liquid?

The accuracy of the measurement can be affected by factors such as the precision of the scale used to measure the apparent weight, the level of the liquid surface, and the stability of the string and mass. Additionally, the density and viscosity of the liquid can also impact the accuracy of the measurement.

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