Another version was later made for Xbox Live on the Xbox 360, adding a multiplayer mode. Later, a port was made for the iPhone and iPad. However, the zombies won't go down easily, and are constantly thinking up new ways to breach your defenses, including screendoor shields, traffic cone helmets, microphones, pushing stuff, laser skulls of doom, pole vaulting and zombonis that pave the way for an undead bobsledding team. However, you find a most unlikely but trusted ally in your own front lawn as you plant various organic defences against the undead legions, and are also given advice and supplies by your neighbor Crazy Dave. Zombies have risen from their graves, and seek to eat your brains. The game had a free browser version that was accessible here. It's about plants fighting against a zombie invasion. Zombies is a Tower Defense game from PopCap Games. This helps you aim the cotton ball forward.Plants vs. Pushing your six sticks the other direction creates a greater angle between the launching stick and the base. This results in a cotton ball aimed more upward than forward.

Moving the stack of six sticks closer to the launching cup makes the launching stick lie flatter. In the case of your catapult, the cotton ball probably flew higher and farther. Bending farther means more energy gets stored in the stick, and when you let go, all this stored energy is converted into energy of motion, so the cotton ball flies through the air at a higher speed. Maybe you felt you needed to exert more force or work harder to bend the stick farther.

Pushing the stick down farther takes more effort from you. Most of this energy transfers to the cotton ball, which shoots through the air. When you let go, this energy is released and converted to energy of motion.

When you bend your stick, you load your launching stick up with energy. Do you get similar results each time? Is what you observe what you expected? Can you explain why?ĭid you see your cotton ball fly higher and farther when you pushed you launching stick farther down?

Video game slot machine catapult