Draw an energy transfer diagram for battery powered clock
Remember what was taught in year 8 - have a go at filling in the blanks. Use the word list in brackets to fill in the yellow section of the paragraph. Each word is only used once so choose wisely my padawan.
Complete the table on the companion sheet by working out the effeiciency of all of these items.
Work your way through the GCSE past paper questions in your companion sheet.
The topic is energy and efficiency