Lesson 2.2: Change in Momentum
Completion requirements
Lesson 2.2: Change in Momentum
A swinging hammer hitting a nail, drops of rain landing on an umbrella, and an owl pouncing on its prey in flight all involve a collision and a change in momentum. Whenever there is a change in momentum, there is a force exerted between the interacting bodies. This force can be very high.Several factors determine the magnitude of the force associated with a change in momentum. In this lesson and in Lesson 2.3, you will examine these factors and pay special attention to the time interval over which the change in momentum occurs.
- Read pages 246 and 247 of the textbook, ending at “Factors Affecting the Change in Momentum of an Object”. Answer the questions as you encounter them.
Check your answers with those in the “Practice Answers” in the online course.
Changes in momentum are most striking during a collision. However, changes in momentum can be gradual and don’t need to involve collisions at all.
- Read “Factors Affecting the Change in Momentum of an Object” on page 247 of the textbook.
- Read the entire investigation on pages 248 and 249 of the textbook.
- Follow the directions in the investigation, and answer the questions.
Check your answers with those in the “Suggested Answers” in the online course.
- Use the sample data for this investigation in the “Suggested Answers” to complete step 6 of the procedure on page 248 and to answer question 2 to 6 on page 249.
Check your answers with those in the “Suggested Answers” in the online course.
- Read pages 249 and 250 of the textbook, starting at “Calculating the Change in Momentum”. Then, answer Practice questions 7 and 8 on page 251.
Check your answers with those in the “Practice Answers” in the online course.
- Read “2.2 Summary” on page 251 of the textbook. Then, complete “2.2 Questions”.
Check your answers with those in the “Practice Answers” in the online course.