Rearranging formulae
Get one letter on its own in a formula: use the same moves as on the balance, with letters.
- إيران: الصف ٨
- أفغانستان: الصف ٨
- ألمانيا: الصف ٨
- بريطانيا: السنة ٩
لم يُترجَم هذا المختبر إلى هذه اللغة بعد.
الدليل
A دستور such as A = lw links several letters. 'Make w the subject' means writing the formula so that w is on its own on one side.
It works like an equation, only with letters instead of numbers. Look at what has been done to the letter and do the opposite: if something was added, take it away; if it was multiplied, divide.
The balance rule: do every move to both pans. Change only one pan and the scale tips. Do adding and subtracting first, then dividing. In v = u + at take away u first, then divide everything by a.
All four problems in this workshop are the same in all four languages. Choose a move under the scale, then tap the pans. Letters are always Latin.