<p> Song Writing Cheat Sheet for Electrical Circuits</p><p>Task: - For every 2 lines of the song there is 1 learning objective provided. - To write the song you simply research each learning objective and make two lines that fit the music that you have chosen. The song will be even more memorable if you can get the lines to rhyme.</p><p>Tips: - This is just a guide. If you feel it would be better to put some information in a different line or if you feel that you have to leave a bit of information out to make your song better then that is ok. - You may have chosen a tune from a song with a slightly different structure so you may have to move the lines to different verses to make it work. - Scientific keywords are sometimes long and hard to fit in or rhyme. Think about what synonyms you can use instead, e.g. shake instead of oscillate.</p><p>Verse 1 – Current and potential difference</p><p>Line 1 & 2 – A cell has a potential difference between its ends so charge flows in a current when you connect them with a wire Line 3 & 4 – Current is how many coulombs pass a point every second and is measured in Amps Line 5 & 6 – As charge flows electrons collide with ions in the wire and transfer energy to them. Line 7 & 8 – Potential difference equals the energy transferred for every coulomb of charge </p><p>Chorus</p><p>The chorus should briefly describe voltage/potential difference, current and resistance and perhaps include the equation for Ohm’s Law V= I x R</p><p>Verse 2 – Components in a circuit 0 Line 1 & 2 – The total resistance in the circuit is the sum of resistance of each component. Line 3 & 4 - In series, each component has the same current and together they share the potential difference of the whole circuit. Line 5 & 6 – Diode only let current go in one direction, resistors lower the current. Line 7 & 8 – thermistor’s resistance goes down when its hot and an LDR’s resistance goes down as light increases.</p><p>Bridge – What affects resistance?</p><p>Line 1 & 2 – Long, thin and hot wires have high resistance, as there is a higher chance of collisions. Line 3 & 4 – High resistance in wires means energy is lost to the surroundings by heating</p>