Go to Gizmos, Launch the simulations. Directions: Follow the instructions to go through the simulation. Respond to the questions and prompts in the orange boxes. Vocabulary: acceleration, air resistance, free fall, instantaneous velocity, terminal velocity, velocity, vacuum Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. Suppose you dropped a feather and a hammer at the same time. Which object would hit the ground first? 2. Imagine repeating the experiment in an airless tub...