Np Fysik Åk 9 __exclusive__ May 2026

Slowly, the chest rose. When it broke the surface, Milo gasped. "It worked!"

Captain Granit smiled. "Good. Let’s start with , young navigator." 1. Energy – The invisible currency "The chest at the bottom has potential energy because it’s deep," the captain explained. "But we need to give it kinetic energy to move it up." np fysik åk 9

"I know exactly where a sunken treasure chest is," he said, pointing to a rusty anchor. "But the winch is broken. We need to lift the chest from the seabed. It's 50 meters down and weighs 200 kg." Slowly, the chest rose

Milo groaned. "That sounds like a physics problem. I'm out." "But we need to give it kinetic energy to move it up

Captain Granit shook his head. "Water fights back. That's and drag ."

"That's how much energy we need to give the chest to lift it," she said. "Can't we just pull it straight up?" Milo asked.

Alva’s eyes lit up. "Wait, this is real physics. Let me think."