Question

Pure or distilled water is a
(a) poor conductor
(b) good conductor
© both (a) and (b)
(d) none of these
8.Sound is a kind of
(a) work
(b) energy
© force
(d) pressure​

Answer 1

Answer:

a)poor conductor

b) energy

Answer 2

Answer:

1. (a) poor conductor

Distilled water is a pure type of water which does not contain any ions in it. Whereas rainwater contains dissolved gasses such as SO2, CO2. These gases dissolve in water to form some kind of acids like carbonic acids which dissociates to give ions. Therefore distilled water does not conduct electricity.

2. (b) energy

Sound Energy- is produced when an object is made to vibrate. Sound energy travels out as waves in all directions. Sound needs a medium to travel through, such as air, water, wood, and even metal! Examples: Voices, whistles, horns and musical instruments.

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