Question

Noah drops a rock with a density of 1.73 g/cm3 into a pond. Will the rock float or sink? Explain your answer.

Answer 1

The rock will sink because the rock is denser than the water

Answer 2

Answer: It sinks

Explanation: Density of water is approximately
`1.0 gcm^(-3)`

Any substance that has higher density than that of water will sink and any substance that has density lesser than water will float.

`Density=(mass)/(volume)`

Thus a higher density substance has more mass for the amount of volume it displaces and hence it sinks.

When Noah drops a rock in water, the rock will sink as it has a higher value of density
`(1.73gcm^(-3))` than that of water
`(1.0 gcm^(-3))`