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10 questions
Pliers used by electrician usually have a plastic cover on the handle.Why?
A) Plastic is a bad conductor of heat
B) Plastic is water resistant
C) Plastic is bad conductor of electricity
D) All of these
Steel spoons used for cooking becomes hot easily.They are often given handle of
A) Iron
B) Copper
C) Wood
D) Aluminium
Find the odd one out from the following.
A) Iron Nail
B) Utensils
C) Magnet
D) Glass beaker
Which of the following is correct for the term ' lustre '?
A) Hardness
B) Softness
C) Dull appearance
D) Shiny appearance
Which one of the following is insoluble in water?
oxygen
sugar
milk
sawdust
The process of gases and liquids spreading into surrounding is called -
conduction
condensation
diffusion
freezing
Which one of the following will not attract magnet?
Iron nail
Steel rod
Copper vessel
A coin made of nickel
Identify the bad conductor of electricity-
copper
iron
silver
pure water
Heating or cooling can change the property of material.
True
False
All gases are poor conductors of heat.
True
False
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