## Smoke rises faster in the chimney on windy day

Question 5: Why does smoke rise faster in a chimney on a windy day? Answer On a windy day the smoke rise faster in the…

## Squirting water on larger area through a hose

Question 4: You can squirt water over a greater distance by placing your thumb over the end of a garden hose than by leaving it…

## Explain difference in two terminal speeds of paratrooper

Question 3: How does the terminal speed of a parachutist before opening a parachute compare to the terminal speed afterwards? Why is there a difference?…

## A squirrel when jumps down a tree remains unhurt

Question 2: Why can squirrel jump from a tree branch to the ground and run away undamaged while a human could break a bone in…

## Relation of terminal velocity and mass of the object

Question 1: From the top of a tall building, you drop two table tennis balls, one filled with air and the other with water. Which…

## Conceptual Questions, Fluid Dynamics

Conceptual Questions on Fluid Dynamics (new course) See here solved conceptual questions on Fluid Dynamics (Physics) included in the course for grade 11. S.NoDescription of…

## working-of-carburetor-and-spray

Question 14: Describe the working of an engine carburetor and paint spray. ANSWER  A carburetor is device that provides the combustion chamber of an engine…

## speed-of-fluid-and-diameter

Question 10: An incompressible liquid is passed through a horizontal pipe and it is observed that the speed of mass of liquid when emerges is…

## diameter-of-falling-water

Question 11: When water falls from a tap, its cross-sectional area decreases as it comes down. Explain why? ANSWER When water emerges from the mouth…

## a-car-has-oblong-shape

Question 12: Why a car has oblong shape? ANSWER When a body moves in a fluid (like air), there is always a resistance to the…