| A | B |
|---|
| What are the three components or a circuit? | energy source, conductor, and receiver |
| How are the magnetic domains arranged inside a magnet? | half point north and half point south |
| what effect will the north pole of one magnet haveo n the north pole of another? | repulsive |
| A battery changes what into what? | stored chemical energy into electrical energy |
| Electricity is basically a _____. | movement of electrons |
| What should you never bring near an electric appliance? | water |
| Which if the following is Not a source of electricity? Lightbulb, Battery, Wall socket | Lightbulb |
| Which of these metals are attracted to magnets? Aluminum, Iron, Tin | Iron |
| What must a battery be part of in order for it to work? | Circuit |
| What kind of charge to electrons carry? | Negative |
| What appens when electricty flows through an object? | a magnetic field is created |
| What is a steady flow of electricity called? | a current |
| What are the two ples of a magnet called? | North and South |
| A current needs a path to flow along, also known as a ______ | circuit |
| Which of these is actually a giant magnet? your shcool, an elephant, the Earth | the Earth |
| What is a material through which electricty can flow easily called? | a conductor |
| A flow of electrons through a conductor is called _______ | a current |
| Why do we coat wires with plastic or rubber? | because they are good insulators |
| What device opens and closes an electric circuit? | a switch |
| What is an insulator? | it prevents the flow of electricity |
| What is a conductor? | it allows electricity to pass though easily |
| Classify as Insulator or Conductor: Penny | Conductor |
| Classify as Insulator or Conductor: Aluminum | Conductor |
| Classify as Insulator or Conductor: Wood | Insulator |
| Classify as Insulator or Conductor: Iron | Condutor |
| Classify as Insulator or Conductor: Styrofoam (foam) | Insulator |
| Classify as Insulator or Conductor: Toothpick | Insulator |
| Classify as Insulator or Conductor: Shoelace or string | Insulator |
| Classify as Insulator or Conductor: rubber band | Insulator |
| Why is a microwave cord covered in plastic? | plastic is a poor conductor of electricity so it will not shock you when you plug it in |
| Why are pots and pans frequently made from iron and aluminum? | Because they conduct heat easily and heat the food better |
| Why are some cooking utensils made from wood? | wood is a good insulator so it won't become hot and burn your hand when stirring a hot substance |
| why do people keep their coffee in foam cups? | foam is a good insulator so it will keep the heat from escaping and the coffee will stay hot |
| Why are most electrical cords covered in plastic or rubber? | Since rubber and plastic are insulators, they will prevent the electricity from leaving the wires when you touch the cords |
