Which of the following is the NOT good insulator?
a) wood
b) water
c) metal
d) plastic
Which of the following is/are poor conductor of heat?
a) metals
b) non-metals
c) solids
d) all of these
Why cooking utensils are made up of metals?
a) metals are insulators
b) metals are poor conductor of heat
c) metals are good conductors
d) all of these
Why metals are good conductors?
a) they have small atomic mass
b) they have small size
c) they have free electrons
d) all of these
Which of the following transfer the heat in conductors (metals)?
a) protons
b) free electrons
c) neutrons
Which of the following is/are non-metal/s?
a) wood
b) plastic
c) wool and fur
d) all of these
