Question

Question 8 : Which of these is a derived physical quantity?
Time
Luminous intensity
Mass
Area
Question 9 : In order to dissolve the greatest amount of sugar in a cup of water, you should __________.
use sugar crushed into small pieces, and heat the water
use sugar in large pieces, and heat the water
use sugar in large pieces, and cool the water
use sugar crushed into small pieces, and cool the water
Question 10 : The kinetic energy of gas molecules is directly proportional to temperature in ___________.
none of these
Kelvin
Celcius
degree kelvin