Lesson Plan and 3mQ for Pre-AP Physics week 09/26/11

MONDAY: Don’t forget that labs are due today! Let’s review the homework! We will take each set of PPs one at a time. By the time we have finished you will understand how to use the Pythagorean theorem to add vectors then we will review components of vectors, you will see that one is just the opposite of the other. When you can do one you can do the other. Homework: Do SR 3-2 2-4. These may give a few of you opportunities to err so that you can learn something.

TUESDAY: After reviewing the homework we will look at EOCP3 24, 26 and 29. You can do 23, 25, and 27. If we do not finish #29 you will also work on that for homework.

WEDNESDAY: We will review the homework with the time remaining after the 3mQ. At this point in our studies you should feel very confident solving these vector problems. If you are kidding yourself about this the joke will be on you when we begin looking a projectile motion, so be honest and let today be the day you get your questions answered! Homework: EOCP3 22 and 28, then see if you can re-do 29 without looking at your notes. Also for homework download the equations for projectile motion. Many of these equations are not in the book. You will be among the lost without these equations! The test over chapter 3 will be one week from today. The FPs are 52, 53, 54, 56, 61, 65, and 69.

THURSDAY: Today we will begin our study of projectile motion. We will discuss free fall and how the horizontal and vertical motions of a projectile relate to each other. We will work one problem each from 3D and E. For homework you will do the rest. Also, for homework set up EOCP #41 and see if you can do the first column and see if you can work out how to solve this problem, in other words, figure out what you need to know in order to find out something else. Make mistakes so you can learn something!

FRIDAY: We will spend most of today looking at EOCP 41. If you have not reviewed this problem as you were asked to do for homework, our discussion will mostly be gibberish to you. If you did play with this problem you will have lots of fun today! Homework: Let’s do some more PMPs! Yeah! Do EOCP 34, 35, and 37.

3mQ PAPP 09/26/11

1. A student walks 30 m east, and then walks 40 m north. How far is the student from her starting point? Be sure to draw a diagram.

2. Using the tangent function determine the direction the student walked.

3. Using the sine function determine the direction the student walked.

BONUS: Using the cosine function determine the direction the student walked.

3mQ PAPP 09/27/11

Every line you can ever draw has two components, name these two components and draw a diagram showing that you understand this important concept.
An object travels 15 m 25⁰ north of east, then it travels 40 m 40⁰ north of east. Resolve the first vector into its horizontal and vertical components. Be sure to draw this!
Resolve the second vector from #2 into its horizontal and vertical components.

BONUS: Add the horizontal and vertical components from #s 2 and 3 and determine the student’s displacement.

3mQ PAPP 09/28/11

Draw three vectors whose resultant is zero.
In three steps describe how to resolve vectors that are not parallel or perpendicular to each other.
Calculate the horizontal and vertical components of a 150 m vector at 50⁰ east of north. Draw a diagram.

BONUS: A plane flying at 600 km/h S is blown off course by a 200 km/h east wind. In what direction must the plane fly to stay on course? Draw a picture!

3mQ PAPP 09/29/11

1. What makes an object a projectile?

2. In what way does the vertical motion of a projectile affect its horizontal motion?

3. An object that is held 2.5 m above ground thrown 20 m/s perfectly horizontally while at the exact same time another object is dropped, also 2.5 m above ground is just dropped. Which object will hit the ground first? Explain how you know.

BONUS: The objects in #3 take ___ seconds to hit the ground and when they do they are going ___ m/s. If these objects were thrown up with that same velocity how high would they go and how long would it take them to reach their maximum height? Explain how you know.

3mQ/PT/ICA PAPP 09/30/11