1) What are two renewable sources of electricity? a) coal and oil b) Solar and wind 2) What are two non-renewable sources of electricity? please answer this correctly a) coal and natural gas b) wind and solar 3) What is a conductor? a) Copper b) Rubber 4) What is an insulator? a) A material that stops electricity b) A material that always conducts electricity 5) Which of these is an example of an insulator? a) alumium b) plastic 6) Which non-metal conducts electricity? a) Graphite b) Rubber 7) How can you test if a material conducts electricity? a) Use a circuit with a bulb b) Put it in water 8) What would happen if a conductor is placed in a circuit? a) the bulb doesnt light up b) the bulb lights up 9) Why is copper used in wires? a) It insulates electricity to prevent shocks b) it is magnetic and repels current c) ''' ' stores electrical energy for long periods d) it has high electrical conductivity and is easy to shape

science

由
列印
嵌入

排行榜

視覺風格

選項

切換範本

恢復自動保存: ?