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Published byMagnus Jordan Modified over 9 years ago
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Circuit Symbol Quiz5 June 2012 Draw and name these circuit symbols
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Draw a circuit with; one battery, one open switch, one globe and three wires
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Tuesday 5 June 2012 Making a Battery Making an Electrochemical Cell
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Battery and electrochemical cells What we have been calling a battery should really called a cell. Two or more cells together make a battery of cells.
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Different types of electrochemical cell Mobile phone electrochemical cell
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Camera electrochemical cell
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Car battery
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A hybrid car uses a battery and fuel to drive the wheels.
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What do we already know about electrochemical cells?
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Inside an electrochemical cell electrodes electrolyte paste
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Making an electrochemical cell Equipment 1 copper beaker 1 strip of magnesium 1 box of wires 1 Micro Ammeter 1 stirring rod 1 measuring cylinder 1 bottle of distilled water 1 switch 1 piece of steel wool to clean the magnesium strip
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Preparing the parts of the cell Cleaning the electrodes Use the steel wool to clean the magnesium strip until it s shiny. Making the electrolyte solution Measure 50 mL of distilled water and pour it into the copper beaker measure 1 pop-stick end of sodium chloride and add it to the water in the copper beaker and stir.
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In your Science book Heading – Making an electrochemical cell Parts of an electrochemical cell An electrolyte is … An electrode is … Describe the appearance of the magnesium electrode after it was cleaned.
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Preparing the parts of the cell Making the electrolyte solution Measure 50 mL of distilled water and pour it into the copper beaker. measure 1 pop-stick end of sodium chloride and add it to the water in the copper beaker and stir.
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Connecting the parts of the cell Wire 1 Connect 1 wire to the magnesium strip. Connect the other end of this wire to a switch terminal. Wire 2 Connect another wire to the other terminal of the switch. Connect the other end of this wire to the ammeter terminal. Wire 3 Connect another wire to the other terminal of the ammeter. Connect the other end of this wire to the copper beaker.
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Connecting the components of the circuit
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CONNECTING THE SWITCH How do you know that electricity is flowing through the circuit?
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Draw your electrochemical cell and the circuit.
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Using another electrolyte Pour out the sodium chloride electrolyte. Measure out 50mL of ethanoic acid and pour it into the copper beaker. Dip in the magnesium and observe the ammeter.
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Making exploding “cells” Equipment film canister 10 mL ethanoic acid 2 pop stick ends of sodium bicarbonate add together, put lid on and STAND BACK!!!
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