1. Activity 82: Braking Distance Warm up: what are the net forces shown in the 3 force diagrams?

2. Net Force Practice Feel the Force: Work with one other partner on the “Feel the Force” worksheet. When finished, check your answers with the answer sheet at Miss Pyle’s desk!

3. Activity 81 Analysis Questions Every person at your table pick a question and draw/write the answer on the white boards. Talk about your answers together and see if you are all in agreement.

4. Activity 81 In Case You Missed It Net force: the overall amount of force acting on an object. Add forces pointing in the same direction; subtract forces pointing in opposite directions.

5. Activity 81 In Case You Missed It Balanced forces: The total forces “cancel out,” causing the object to either not move, or continue moving at a constant speed. The net force is zero.

6. Activity 81 In Case You Missed It Unbalanced forces: The total forces acting on an object do not cancel out, resulting in a push or a pull of an object. Net force cannot be zero. An object with unbalanced forces can either accelerate or decelerate.

7. Activity 82: Braking Distance Please open your books to page E 41.

8. Activity 82: Braking Distance Braking distance: The distance a vehicle travels in the time between the moment the brakes are applied and the moment when the vehicle comes to a stop. When you cover the track with a cloth, will the braking distance become longer or shorter?

9. Activity 82: Braking Distance Follow the procedure on your own. Be sure to create the chart in your notebook. Follow directions carefully; it tells you everything you need to know!

10. Tonight’s Homework Complete Activity 82 analysis questions. Do #1-4, not the extension question. Kings Island permission slips and money are due in ONE WEEK!