A uniform solid cube material 10cm on each side of mass 700g is submerged in water. Which of the following best described the behavior of the cube water?

A. the cube will melt after a period of time
B. the cube will float
C. the cube will sink in water
D. the cube will rest at an equilibrium position in water

Correct Answer:

Option B – the cube will float

Explanation

For the uniform cube 10cm volume = 10 x 10 x 10 = 103 cm³
Mass = 700g
∴ density = (Mass)/Volume = (700)/100 = 0.7gcm−³
since the density is less than the density of water, the cube will float