GENERAL KNOWLEDGE

GK

PHYSICS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A fragile glass dropped on the road usually breaks because its change in momentum is greater compared when it is dropped on grass.
A
False
B
True
C
Either A or B
D
None of the above
Explanation: 

Detailed explanation-1: -When the egg hits the ground the forces of the impact are distributed around the shell so it does not break.

Detailed explanation-2: -Because the force on the glass hitting the cement floor is greater, the glass is much more likely to break.

Detailed explanation-3: -When an egg is dropped on concrete, the surface of the concrete is harder than the grass. Due to the harder surface, the egg will break in a shorter time interval than if were dropped on grass. Grass will have the effect of an air bag so the time interval will be longer.

Detailed explanation-4: -When the egg hits the ground with a given force, the ground exerts the same force back on the egg. The faster the egg falls, the greater this force is. If too large a force is delivered to the egg shell, the egg will crack.

There is 1 question to complete.