A body experiences an upthrust $F_{1}$ in river water and $F_{2}$ in sea water when dipped up to the same level. Which is more $F_{1}$ or $F_{2}$ ? Give reason. [ $2 Marks$ ]

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Solution

$F_{2} > F_{1}$ [ $1 Mark$ ]
Sea water is denser than river water; therefore, the upthrust due to sea water will be greater than river water at the same level. This will make the body feel lighter in the sea water [ $1 Mark$ ]

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A body experiences an upthrust $F_{1}$ in river water and $F_{2}$ in sea water when dipped up to the same level. Which is more $F_{1}$ or $F_{2}$ ? Give reason.

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F_{1}

in freshwater and

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in seawater when dipped up to the same level. Which is more,

F_{1}

F_{2}

? Give reason(s).

[2 marks]

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, then

∣ ∣ ∣_{1} +_{2} ∣ ∣ ∣

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A body experiences an upthrust F1 in river water and F2 in sea water when dipped up to the same level. Which is more F1 or F2 ? Give reason. [2 Marks]

F2>F1 [1 Mark] Sea water is denser than river water; therefore, the upthrust due to sea water will be greater than river water at the same level. This will make the body feel lighter in the sea water [1 Mark]

A body experiences an upthrust $F_{1}$ in river water and $F_{2}$ in sea water when dipped up to the same level. Which is more $F_{1}$ or $F_{2}$ ? Give reason. [ $2 Marks$ ]

$F_{2} > F_{1}$ [ $1 Mark$ ]
Sea water is denser than river water; therefore, the upthrust due to sea water will be greater than river water at the same level. This will make the body feel lighter in the sea water [ $1 Mark$ ]