 Physics Honors/AP 1 and 2

#### Course Materials are always under revision! Weblecture content may change anytime prior to two weeks before scheduled chat session for content. Homework

# Physics Chapter 2: 6-8: Constant Acceleration

## Homework

### Reading Preparation

Text Reading: Giancoli, Physics - Principles with Applications, Chapter 2: Sections 6-8

##### Study Points
• Section 6: Solving problems involving physical situations requires you not only to understand the math, but to visualize the actual physical situation. If the latter doesn't make sense, the math won't really be correct either.
• Section 7: We can use the formula we learned for constant acceleration to solve falling body problems in the lab, since near the surface of the earth, acceleration due to gravity changes very slowly over small distances.
• Section 8: The slope of a curve (y2 - y1)/(x2 -x1) and the area under a curve (x2-x1)*(y2-y1) can tell us a lot about the function that produced the curve.

### Web Lecture

Read the following weblecture before chat: Graphing velocity and acceleration

### Study Activity

The website below will either download a Java applet to your computer or run the applet in place, depending on how your browser is configured. You will need Java installed to run the applet locally on your computer.

The "moving man" applet lets you gain some practice with the relationships between position (displacement), velocity, and acceleration. Initially, all the values are set to zero. What happens if you just run the applet without changing the values?

• What happens if you change position but not velocity or acceleration (i.e., leave these set to zero)?
• What happens when velocity is set to a constant, such as 2 m/s, while acceleration is set to 0?
• What happens when velocity is set to a negative constant, such as -2 m/s, while acceleration is set to zero?
• What happens when velocity is positive and acceleration is positive?
• What happens when velocity is negative and acceleration is positive?
• What happens when velocity is positive and acceleration is negative?
• What happens when velocity is negative and acceleration is negative?

Physics simulation Java Applets are the product of the PHET Interactive Simulations project at the University of Colorado, Boulder.

### Chat Preparation Activities

• Forum question: The Moodle forum for the session will assign a specific study question for you to prepare for chat. You need to read this question and post your answer before chat starts for this session.
• Mastery Exercise: The Moodle Mastery exercise for the chapter will contain sections related to our chat topic. Try to complete these before the chat starts, so that you can ask questions.

### Chapter Quiz

• Required: Complete the Mastery exercise with a passing score of 85% or better.
• Go to the Moodle and take the quiz for this chat session to see how much you already know about astronomy!

### Lab Work

If you want lab credit for this course, you must complete at least 12 labs (honors course) or 18 labs (AP students). One or more lab exercises are posted for each chapter as part of the homework assignment. We will be reviewing lab work at regular intervals, so do not get behind!