Lesson 1.2: Identifying and Solving Problems with New Technologies
Completion requirements
Lesson 1.2: Identifying and Solving Problems with New Technologies
Although automobiles have been in general use in Canada for decades, many recently developed technologies have made significant improvements to automobiles. Think of air bags, antilock brakes, high-intensity discharge (HID) headlights, and GPS navigation systems. However, developing new technologies to solve one problem may introduce new problems.
This lesson is also about using equations to solve for any unknown variables. You should be able to calculate average speed now. Given average speed can you find distance or time. That is half the focus of this lesson.
- Read pages 174 to 176 of the textbook. Work through Example 1.3, make sure you know how to convert kn/h to m/s. Do Practice Problem 9. Work through Example 1.4, make sure you can solve for a variable that is a denominator. Do Practice Problems 11 and 12. Check your answers with those in the “Practice Answers” in the online course.
Have you noticed that some automobiles in oncoming traffic have particularly bright headlights that emit a somewhat bluish tint? These headlights are likely high-intensity discharge (HID) headlights. Not only are HID headlights brighter than the more conventional automobile headlights, but they are also more efficient. The improved visibility they provide drivers is impressive. But are there risks associated with this new technology? Find out in the next activity.
- Read the activity on pages 176 and 177 of the textbook. Follow the directions, and answer the questions.
Note: If you do not have classmates to share your findings with, ask a friend or family member to help you do question 5 of “Evaluation”.
Check your answers with those in the “Suggested Answers” in the online course.
- Read “1.2 Summary” on page 178 of the textbook. Complete question 4a and c. Check your answers with those in the “Practice Answers” in the online course.