DAY 11
ESSENTIAL QUESTION:
In which ways can we answer the question, "How far?"
In which ways can we answer the question, "How fast?"
#Goals: SWBAT...
1. Differentiate between an objects speed and velocity
2. Properly set up speed and velocity problems which involve distance and time
3. Convert units when necessary
4. Solve speed and velocity problems with ease
Warm-Up (3min)
Which gives more information, a vector or a scalar? What information does it give?
Copy each of the following terms, then next to it identify it as a vector or scalar.
speed
distance
displacement
velocity
CLASSWORK
HW Questions? (5min)
1. #010A (continued): Distance vs Displacement (8min)
- Label your notes with the number and topic listed above
- Take notes. Your notes should include:
- definition of scalar & vector
- drawings/explanations of three different distance/displacement scenarios
- Activity LINK 3. #
2. #011A: (15min) Speed/Velocity Notes & Practice
- Take notes.
- Complete practice problems
- Presentation is available electronically here --> LINK
3. #011C: Practice problems
we will complete 1-2 today in class
here's the.... LINK
You should use the GUESS method:
Given (write the given info)
Unknown (Identify the unknown - AKA the thing for which you're solving)
Equation (write the equation you'll use)
Substitute (plug the given numbers into the equation)
Solve
Learning at Home/HOMEWORK
Complete 1-2 from #011C (here's the.... LINK)
Answers to 1-2(you need to use GUESS and show your work)
1. 25s --> 1sigfig --> 20s
2. 4cm/s --> 1sigfig --> 4cm/s
QUIZ next week on: vectors, scalars, speed, velocity, distance, displacement
To Review:
Speed & Velocity Video #1 : Go to https://edpuzzle.com/media/57b7829a7280a645327bd3b9
Take notes and write the answers for credit. Review Mr. P's notes here --> LINK
#011B: Velocity Video #2: Go to https://edpuzzle.com/media/57b7838c6b6e2cb616d68353
Take notes and write the answers for credit. Review Mr. P's notes here --> LINK
Mr. Alexander goes over three example velocity problems: http://www.youtube.com/watch?v=Dbx1SY9ljZw
PERIODS 2-6:
Complete practice problems 1-10 from #010C.
If you lost it, or missed class, here's the.... LINK
Answers to 1-10 (you still need to use GUESS and show your work)
1. 25s --> 1sigfig --> 20s
2. 4cm/s --> 1sigfig --> 4cm/s
3. 60km/hr --> 1sigfig --> 60km/hr
4. 48.125mi/hr --> 1sigfig --> 50mi/hr
5. 50 mi/hr North
6. 308mi/hr --> 3sigfigs --> 308mi/hr
7. 0 (zero) if you consider the question is asking about a round trip, or 308mi/hr North if you think the question is asking about a 1-way trip only.
8. 0.005m/s --> 1sigfig --> 0.005m/s in the positive direction
9. 1610mi --> 1sigfig --> 2000mi
____________
10. | | 2m/s West
OLD STUFF BELOW - DISREGARD
#Goals: SWBAT...
1. Interpret the meaning of lines on P-t and V-t graphs.
2. Sketch P-t and V-t graphs which match given characteristics.
Warm-Up (5min)
Draw one v-t graph representing each of the following
a. moving in the positive direction.
b. moving with a constant velocity.
c. slowing down.
d. changing directions.
e. moving with a positive acceleration.
We will review yesterday's w/u and CW
CLASSWORK
1. #011A: Quiz 2 (10min)
2. P-t and v-t graphs Q & A time / worktime on #010A
3. Lab write-up work time, rubric review, Q & A
HOMEWORK
1. #007A: Penny Acceleration Lab (LINK) is due Wednesday. Turn in a paper copy , or email it to me at josh.alexander@lausd.net by the beginning of class.
2. #010A: Complete any of the remaining practice problems 1-37 from #010A. Tomorrow you may be required to show your solution to one of these on the board. Be ready!
Once you've answered all the questions, check your answers using the "Show Answer!" link.
Link to assignment is HERE. Answer 1-37 in your notes; paraphrase each question in your notes prior to answering. If still unclear, online help is in the links below, or you can Remind message me:
LINK for p-t graphs
LINK for v-t graphs