Student Exploration: Air Track (gizmos) questions with correct answers

Imagine going to a bowling alley with a bowling ball and a ping pong ball. Why is a bowling ball better for knocking down pins than a ping pong ball? CORRECT ANSWER because a bowling ball has a higher mass and a higher speed when rolled which makes it easier to knock down pins. Which do you think would knock down more pins, a bowling ball moving 10 meters per second or a bowling ball moving 10 centimeters per second? CORRECT ANSWER 10 m/s What two factors seem to most affect the amount of damage that occurs in a collision? CORRECT ANSWER mass and velocity An air track is a device that helps scientists study motion. Air comes out of holes in the track, allowing the gliders to move with minimal friction. On the Air Track Gizmo, click Play () to view a collision between the two gliders. What do you see? CORRECT ANSWER both gliders were moving towards each other and then they collided. They kind of bounced off each other and then went in the opposite direction. Click Reset (). The velocity (v) of an object describes its speed and direction. The velocity of each glider is indicated next to the v1 and v2 sliders. Click Play, and then click Pause () just before the collision. A. What is the velocity of Glider 1? CORRECT ANSWER 5.0 m/s B. In which direction does Glider 1 move? CORRECT ANSWER right C. What is the velocity of Glider 2? CORRECT ANSWER -5.0 m/s D. In which direction does Glider 2 move? CORRECT ANSWER left