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| Which of the following does not determine the physical properties of materials? |
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| Transistors have contributed a lot to the information age through their use as |
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| Which kind of strength describes a material ability to withstand twisting |
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| A superconductor can be described as having electrons that |
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| can move freely without losing energy. |
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| Which of the following exits at very low temperatures? |
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| One important characteristic of some semiconducting devices is that they |
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| allow electricity to flow in only one direction |
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| applies to ever-increasing information capacity of computer |
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| Which phrase describes electrical resistance |
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| inverse of electrical conduction |
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| The information in a computer is stored and manipulated by |
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| Stores magnetically oriented particles on a disk. |
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| a test for artificial intelligence |
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| A silicon semiconductor will transmit electrical current |
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| Integrated circuits contributed most directly to |
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| the miniaturization of computers |
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| Which material would have the strongest compressive strength? |
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| Which of the following is a good conductor |
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| If you start a current flowing in a super conduction wire that is kept cold, and then remove the power source, the |
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| current would continue to flow |
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Term
| How is a microchip an improvement over a transistor? |
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Definition
| A microchip incorporates thousands of transistors in one integrated circuit designed for a specific function |
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| In order for a computer to become more like a human bran it would need |
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Definition
| to have more interconnections |
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| A nerve cell is to a brain as a what is to a computer |
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| Which of the following can be communicated by using only a series of "yes-or-no" questions? |
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Definition
| a digital photograph, a telephone number, and entire set of encyclopedia, how to color a rainbow (all the above) |
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| Which of the following has the least information content? |
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Definition
| one second of a telephone conversation |
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| Semi-conduction diodes are used in solar photovoltaic cells because |
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Definition
| electrons in semiconductors are loosely bound to atoms, and therefore can be easily transmitted as a current. |
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| Magnets are usually found in all of the following except for |
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| Which of the following statements best describes a characteristic of most composite materials? |
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| Composite materials are stronger than their components |
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| Doping is a process that adds |
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Definition
-phosphorus ions to the crystalline structure of silicon
-aluminum ions to the crystalline structure of silicon
-any minor impurity to an element or compound
-a positive or negative charge to the lattice of a crystal
-(all of the above) |
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| Which of the following can be communicated by using only a series of "yes-or-no" questions? |
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-a digital photograph
-telephone number
-an entire set of encyclopedia
-how to color a rainbow
-(all of the above) |
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