Please enter your email: A material which is an electrical insulator ……. A. does not allow electricity to pass through it easily B. does not allow heat to travel through it easily C. allows heat to travel through it easily D. allows electricity to pass through it easily A material which is an electrical conductor ……. A. does not allow electricity to pass through it easily B. does not allow heat to travel through it easily C. allows heat to travel through it easily D. allows electricity to pass through it easily In a complete electrical circuit, electricity flows through materials which are ……. A. electrical insulators B. electrical conductors C. made only of leads or wires D. batteries only Which of these is NOT an electrical conductor? A. Gold B. Copper C. Aluminium D. Rubber Which of these is NOT an electrical insulator? A. Wood B. Plastic C. Silver D. Glass Why are electrical plugs made of plastic? A. Plastic is stronger than all other materials B. Plastic is a good electrical conductor C. Plastic protects people from electricity D. Only plastic can be made into the right shape for a plug Which of these is a good electrical conductor? A. Water B. Sweat C. The human body D. All of the above Why are insulators important in an electrical circuit? A. They make the circuit safe to touch B. Electricity will only flow through insulators C. Light bulbs and buzzers are only made of insulating materials D. All of the above Which of these could be used to complete an electrical circuit? A. A piece of gravel B. A rubber C. A crayon D. A pair of scissors 10. The filament in a light bulb glows because of the material’s resistance. What does this mean? A. The filament does not allow the flow of electricity B. The filament speeds up the flow of electricity C. The filament slows down the flow of electricity D. The filament gets annoyed with the electricity Loading … Question 1 of 10
WhatsApp us for instant feedback