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Description
Flashcards by That Yeti Dog Person, updated more than 1 year ago
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Created by That Yeti Dog Person
almost 4 years ago
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| Question | Answer |
| _______ and _____ convert chemical energy into electric energy to produce a flow of electrons (current). | Electric cells, batteries |
| A single ____ is a basic source of voltage and current. | electric cell |
| A _____ is a group of connected cells. | battery |
| ____ are atoms that have lost or gained electrons. | Ions |
| In an electric cell, the _____ is a weak solution of acid base or salt in water. | electrolyte |
| The _____ in an electric cell are two strips of metal; the negative one is made of lead, and the positive one is made of lead dioxide. | electrode |
| Cells can be classified as either ____ cells or ____ cells. | wet, dry |
| ____ cells contain a liquid electrolyte (usually dilute sulfuric acid)) and produce a little over 2 V. | Wet |
| ____ contain an electrolyte in paste form. In the common flashlight cell, the electrolyte is ammonium chloride paste. The typical cell of this type produces 1.5 V. | Dry |
| Some cells use up their charge quickly and can't be recharged. these cells are called _____ cells. (most cells are this type) | primary |
| Cells that can be recharged are called _____ cells or _____ cells. The electrodes and the electrolyte can be recharged (restored) in this type of cell. | secondary, storage |
| A cell is _____ by passing current through the cell in the direction opposite to the discharge current. | recharged |
| Cells can be connected in ____, ____, or _______, depending on the needs of the circuit. | series, parallel, series-parallel |
| When cells are connected in _____, they produce higher ~voltage~ than a single cell can produce. | series |
| When cells are connected in _____, they produce greater ~current~ (amps) than a single cell can produce. | parallel |
| When cells are connected in _____, they provide higher ~voltage~ and higher ~current~ (amps). | series-parallel |
| A _____ is an instrument for measuring voltage. | voltmeter |
| When cells are connected in ____, the positive terminals are connected to each other and the negative terminals are connected to each other. The voltage stays the same, but the current (amps) increases. | parallel |
| When cells are connected in ____, the positive and negative are connected to their opposite charge (positive connects to negative vice versa). The current (amps) stays the same, but the voltage increases. | series |
| An _____ is an instrument used to measure current in a circuit in amperes. | ammeter |
| A _____ battery consists of two groups of four cells connected in series. The two groups of series-connected cells are then connected in parallel at the two ends. | series-parallel |
| In _____ connected cells, the voltage of the entire battery is equal to the voltage of one of the groups of cells, and the current is equal to the sum of the current of the all cells. | series-parallel |
| The two basic parts of an electric storage cell are the _______ and the _____.__ | positive electrode, negative electrode |
| Each electrode in a wet storage cell are made up of _____ or _____. | plates, grids |
| An _____ is an electrical conductor used to make contact with a nonmetallic part of a circuit. | electrode |
| Each group of plates (in a wet storage cell) is welded together and connected by a conducting _____. A cell terminal is then connected to each of these. | plate strap |
| Groups of plates are used to form the electrodes in a wet storage cell because a group of plates can produce more _____ fir a longer period of time than a single rod or plate can. | current |
| The voltage of a typical wet cell is between ___ and ___. | 2.0 V, 2.2 V |
| The most common source of DC is the _____. | power supply |
| Another name for a DC generator is _____. | dynamo |
| _______ produce current by converting magnetic energy into electric energy. | DC generators |
| An _____ is a device used to detect and measure vibrations in industrial machinery. | accelerometer |
| A _______ cell generates voltage when exposed to light. | photovoltaic |
| The other simpler name for the photovoltaic cell is ______. | photocell |
| In a _______, two different types of metal are mechanically joined. Heating the junction of the two metals produces a DC voltage across the output terminals of the device. | thermocouple |
| A simple dry cell contains a ____ shell and a ____ rod. | zinc, carbon |
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