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Gappa-Energy Test 2
| Question | Answer |
|---|---|
| another name for heat energy | thermal energy |
| magnet that can be turned on or off by a switch | electromagnet |
| form of potential energy stored in the bonds of molecules that make up food and fossil fuels | chemical energy |
| movement of electric charge from one place to another | electric energy |
| energy that is due to the position of an object, such as a rock at the top of a hill | potential energy |
| energy of motion | kinetic energy |
| energy that is released when an atom is split in two by fission or atoms are smashed together by fusion | nuclear energy |
| What is the result if more coils of wire are added to an electromagnet? | stronger magnet |
| Which directions do the domains of a magnet point? | one direction |
| Which direction to the domains of a non-magnetized object point? | all different directions |
| Which part of the atoms is responsible for creating electricity? | electron |
| Which type of isotopes is commonly used at nuclear power plants to create electricity? | uranium |
| Does nuclear energy create greenhouse gasses? | no |
| Does nuclear energy create dangerous radioactive waste products that must be stored safely? | yes |
| Do fossil fuels create greenhouse gasses? | yes |
| Do fossil fuels create dangerous radioactive waste that must be stored safely? | no |
| When an atom splits during fission, more neutrons are released and lots of _____________ energy is given off. | thermal |
| process in which smaller atoms are smash together into one larger atom | fusion |
| When an object has more thermal energy, does its atoms vibrate faster or slow? | faster |
| south pole of a magnet will repel another | south pole |
| a north pole of a magnet will repel another | north pole |
| a south pole of a magnet will attract another | north pole |
| Are fossil fuels a renewable or nonrenewable resource? | nonrenewalbe |
| How do fossil fuels add to global warming? | release carbon dioxide |
| In order for a generator to create electricity, it must be turned by a | turbine |
| Which can be used to create electricity on earth: fusion or fission? | fission |
| Where does fusion take place? | sun |
| What kind of energy can humans NOT live without? | chemical energy of food |
| Coal, oil and natural gas are all examples of ___________ fuels. | fossil |
| If an object is higher, it has more ______________ energy. | potential |
| According to the Law of Conservation of Energy, energy cannot be __________________________. | created or destroyed |
| According to the Law of Conservation of Energy, energy can only be _______________ from one form of energy to another form. | transformed |
| According to the Law of Conservation of Energy, the amount of energy always stays the ____________. | same |
| A type of chemical energy that people can't live without is ____________. | food |
| This type of nuclear energy occurs on the sun | fusion |
| Which type of nuclear energy do scientists know how to control? | fission |
| Is chemical energy a form or potential or kinetic energy? | potential |
| How long does it take to make more fossil fuels? | millions of years |
| Will a wind turbine work if it isn't windy? | no |
| Will a hydroelectric dam work if there isn't any water? | no |
| Will a solar panel create electricity if the sun isn't shining? | no |
| What type of atom is used in fusion? | hydrogen |
| Why type of atom is used in fission? | uranium |
| Fission and fusion are types of _____ energy | nuclear |
| energy created when the domains of a substance all point in the same direction | magnetic energy |
| Can nuclear energy be used to make electricity? | yes |
| Can all uranium isotopes go through nuclear fission? | no |
| Are all greenhouse gasses bad? | no |
| How can greenhouse gasses good? | balanced amounts of them keep our planet warm |
| motors need a battery, wire coil, and a _____ to spin. | magnet |
| Speakers, headphones, and motors all contain | electromagnets |
Created by:
edeboo
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