UNIT 5 - ELECTRICITY

TASK 8 :


[/left]1.RP
2.TC
3.TC
4.RP
5.TC
6.TC
7.RP
8.RP


TASK 9:
1.It's significant that is raising temperature air. k43tdh04
2.Burning fossil fuels is a cause of global warming that has been documented well. k43tdh04
3.it is undeniable that ocean levels are rising. k43tdh04
4.intelligent robots can understand what they see and hear. k43tdh04
5.the non-sense metal monsters movies are robots that is idea of fiction science. k43tdh04
6.Scientiests believe that intelligent robots may study to travel into distant space worlds. k43tdh04
7.Thiêu' từ


TASK 3:
1.leaps
2.invisible
3.energy
4.electric charge
5.electrons
6.signals
7.Batterries....solar cells
8.conductors
9.Insulators
10.superconductors


TASK 4:
1.signals
2.Insulator
3.electric current
4.conductor
5.solar cells
6.superconductor
7.leaps....visible
8.electric charge
9.batteries
10.cables
11.energy

TASK 5:
1. It is the form of energy.It consists of electrons-tiny particles that come from atoms.
2.It carries a tiny electric charge which is an amount of electricity.K43tdh04
3.It's cables hidden in walls and ceilings.
4.Batteries produce electricity from chemicals,and sollar cells provide electricity from energy in sunlight.
5.yes,it does.
6.it's called current electricity.
7.it needs circuits.
8.Because conductors have electrons which are free to move.K43tdh04
9.They are called insulators
10.The resistance disappears and certain materials are very cold.


TASK 10:
1.The reason why aluminium used for making aircraft is it's very light,soft,corrosion-resistant.
2.We are not sure the flow of electric current is measured in amperes.
3.He cant remember what the unit is used for measuring force.
4.we dont know work equelto force is multiplied by distance.
5.They are not sure A man dose work when he walks.
6.The question what metals bronze consists of is easy to us.K43tdh04

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