(A) s = ut + 12at2

(B) v = u + a

(C) s = ut + 12at3

(D) v2 = u2 + 2as

(A) decreased by 2%

(B) decreased by 4%

(C) increased by 2%

(D) increased by 4%

(A) alcohol is a poor conductor of heat

(B) alcohol can be colored for its level to be seen easily

(C) its freezing point is very low

(D) it will not stick to the glass tube

(A) 18m/s

(B) 25 m/s

(C) 30 m/s

(D)  36 m/s

(A) light waves

(B) radio waves

(C)  sound waves

(D) all of them

(A) is also doubled

(B) becomes half

(C) becomes 1/4th

(D) becomes 4 times 

(A) vacuum

(B) water

(C)  glass

(D) hydrogen gas

(A) momentum

(B) potential energy

(C) velocity

(D) kinetic energy

(A) degree

(B) radian

(C) steradian

(D) radian second

(A) weak vocal chords

(B) lower frequency

(C) higher frequency

(D) higher amplitude