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If a submerged object displaces an amount of liquid with a weight greater than its own, when the object is released, it will……..
a)sink                                    

b) float  
c) remain submerged in equilibrium
d) pop up out of the surface

b

Why wood block floats on the surface of water?
a) the wood is denser than water     
b) the water is denser than wood
c) the density of water and wood are same
d) all of these

b

Why metal coin sinks in water?
a) the coin is denser than water      
b)the water is denser than coin
c) the density of water and coin are same
d) all of these

a

How many times steel is heavier than water?
a) 3 times                                             

b) 4 times
c) 5 times                                              

d) 8 times

d

Why steel boat does not sink in water despite the fact that steel is 8 times heavier than water?
a) due to its density                            

b) due its mass    
c) due to its shape                               

d) all of these

c

The hollow shape of ships allows to float in water. What is/are the reason/s.
a) volume increased                           
b) density decreased
c) mass increased                               
d) both a and b

d