Question

iii) Which evaporates faster - hot water or cold water ?
iv) When do two magnets repel each other ?
v) Name the material that is used to make a permanent magnet.
vi) What is combination of two or more cells in head-to-tail manner called?
vii)Name the ‘on-off’ mechanism in any electrical circuit.
viii) Can a transparent object cast shadow?

Answer 1

Answer:

iii)Hot water

iv) When same poles of magnets are facing each other, they repel

v)Iron, nickel and cobalt can be used to make permanent magnets

vi) Series combination

vii) Switch

viii) No