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- Q1
Classify the materials if it is conductor or insulator.
Users sort answers between categoriesSorting30sS5FE-IIIc-3 - Q2
Which solid materials can transfer heat and electricity easily?
copper wire
plastic aluminum plate
plastic cup
gold neon
30sS5FE-IIIc-3 - Q3
Why are metals good conductors of electricity?
Because metal is easily breakable.
Because metal can easily transmit electricity.
Because metal is hard.
Because metal is shiny.
30sS5FE-IIIc-3 - Q4
Ductile materials like copper, aluminum and gold are conductors of heat and electricity. Why?
Because it is made of metal.
Because it is made of glass.
Because it is made of plastic.
Because it is made of wood.
30sS5FE-IIIc-3 - Q5
Which does not allow heat and electricity to transfer to other materials?
Ionic liquid
silver
electrical conductivity
Ionic solid
30sS5FE-IIIc-3 - Q6
Why is copper a good conductor of electricity?
none of these
Because copper has the best electrical conductivity of any metal.
Because of its high thermal insulator.
Because of its low thermal conductivity.
30sS5FE-IIIc-3 - Q7
Why is a severe electric shock dangerous?
All are correct
It can interfere with breathing
It can cause burns.
It can stop the heart from beating.
30sS5FE-IIIc-3 - Q8
Which of the following effects illustrate when a person suffers severe electric burn?
Electric shock
Increase in volume
Magnetic effects
Increase in temperature
30sS5FE-IIIc-3 - Q9
Which of the following is a negative effect of heat?
Heat is used in cooking.
Heat is used in building construction.
Heat keeps our body normal.
Heat can cause burn, dehydration and heat stroke.
30sS5FE-IIIc-3 - Q10
Which of the following effects illustrate when a solid material change into liquid?
Increase in volume
Increase in temperature
Chemical changes
Change in state
30sS5FE-IIIc-3 - Q11
Which effects illustrate when the material expands when heated?
Increase in temperature
Chemical changes
Increase in volume
Change in state
30sS5FE-IIIc-3