Name: ________________________ Date: ________________________ Electricity and Magnetism Use the word bank to match the words to their definitions. (1 point each) insulator unlike parallel electromagnet series closed open like static conductor In magnetism and electricity, ___________________ charges attract and ___________________ charges repel. An ___________________ is a metal coiled with wire that is connected to a power source such as a battery. A ___________________ is a material through which heat and electricity flow easily. A ___________________ is a material that resists the flow of heat and electricity. A ___________________ circuit is an electric circuit with two or more paths. A ___________________ circuit is an electric current with only one path for a current. ___________________ electricity is the build-up of electric charges in one place. A ___________________ circuit is an electrical circuit that is NOT complete. A ___________________ circuit is an electrical circuit that is complete. Multiple Choice (1 point each) 1. Which material is a conductor? a. Plastic b. Wood c. Iron d. Glass 2. Which material is an insulator? a. Copper b. Foil c. Rubber d. Iron 3. Which statement best describes an electromagnet? a. b. c. d. Electromagnets are permanent magnets. Electromagnets are temporary magnets. Electricity is not important in making an electromagnet. Magnetism is not important in making an electromagnet. 4. What is an example of something powered by an electromagnet? a. A magnet on a fridge b. A rollercoaster c. A lightbulb d. A shock from hot clothes in the dryer 5. If one bulb burned out in a series circuit, what would happen to the other bulbs? a. The other bulbs would stay lit. b. The other bulbs would become dimmer. c. The other bulbs would become brighter. d. The other bulbs would burn out. 6. If one bulb burned out in a parallel circuit, what would happen to the other bulbs? a. The other bulbs would stay lit. b. The other bulbs would become dimmer. c. The other bulbs would become brighter. d. The other bulbs would burn out. 7. Which is an example of static electricity? a. Electricity used to turn on a lamp b. Electricity used to power a rollercoaster c. Electricity that produces lighting d. Electricity used to power a T.V. Short Answer (5 points each) 1. Explain how this electric circuit works. ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ________________________________________________________________________ 2. Explain how this electromagnet works. ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ______________________________________________________________________________ ________________________________________________________________________