Flashcards
Electric Cells and Batteries (Mod. 2 pt3) 2 of 2
Cards in this deck (36)
- 1_______ and _____ convert chemical energy into electric energy to produce a flow of electrons (current).Electric cells, batteries
- 2A single ____ is a basic source of voltage and current.electric cell
- 3A _____ is a group of connected cells.battery
- 4____ are atoms that have lost or gained electrons.Ions
- 5In an electric cell, the _____ is a weak solution of acid base or salt in water.electrolyte
- 6The _____ 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
- 7Cells can be classified as either ____ cells or ____ cells.wet, dry
- 8____ cells contain a liquid electrolyte (usually dilute sulfuric acid)) and produce a little over 2 V.Wet
- 9____ 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
- 10Some cells use up their charge quickly and can't be recharged. these cells are called _____ cells. (most cells are this type)primary
- 11Cells 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
- 12A cell is _____ by passing current through the cell in the direction opposite to the discharge current.recharged
- 13Cells can be connected in ____, ____, or _______, depending on the needs of the circuit.series, parallel, series-parallel
- 14When cells are connected in _____, they produce higher ~voltage~ than a single cell can produce.series
- 15When cells are connected in _____, they produce greater ~current~ (amps) than a single cell can produce.parallel
- 16When cells are connected in _____, they provide higher ~voltage~ and higher ~current~ (amps).series-parallel
- 17A _____ is an instrument for measuring voltage.voltmeter
- 18When 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
- 19When 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
- 20An _____ is an instrument used to measure current in a circuit in amperes.ammeter
- 21A _____ 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
- 22In _____ 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
- 23The two basic parts of an electric storage cell are the _______ and the _____.__positive electrode, negative electrode
- 24Each electrode in a wet storage cell are made up of _____ or _____.plates, grids
- 25An _____ is an electrical conductor used to make contact with a nonmetallic part of a circuit.electrode
- 26Each 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
- 27Groups 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
- 28The voltage of a typical wet cell is between ___ and ___.2.0 V, 2.2 V
- 29The most common source of DC is the _____.power supply
- 30Another name for a DC generator is _____.dynamo
- 31_______ produce current by converting magnetic energy into electric energy.DC generators
- 32An _____ is a device used to detect and measure vibrations in industrial machinery.accelerometer
- 33A _______ cell generates voltage when exposed to light.photovoltaic
- 34The other simpler name for the photovoltaic cell is ______.photocell
- 35In 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
- 36A simple dry cell contains a ____ shell and a ____ rod.zinc, carbon