Formative Practice 7.2 Science Form 2 File

Team 3 disconnected the batteries. Immediately, all clips fell. Unlike a permanent magnet, their electromagnet worked .

Lesson applied: The , the stronger the electromagnet. Round 3: The Current Surprise Siti noticed Team 4 had connected two batteries in series. Their electromagnet lifted 30 clips! formative practice 7.2 science form 2

They connected three batteries. The wire got slightly warm, but the electromagnet became a beast – lifting and winning the competition. Team 3 disconnected the batteries

Result: Their electromagnet now lifted – more than double. Team 3 disconnected the batteries. Immediately

“Quick, let’s use three batteries!” Lina said.