DAY 77
#Goals: SWBAT...
1. ... solve 1-D and 2-D work and power problems
WARM-UP:
1. Try this simple work problem: pg 265 #17
2. Bob loads a 100kg oven into a house by pushing it up a 10m frictionless ramp at an angle of 15*. How much work does Bob do?
CLASSWORK:
1. Solving work problems in 2-D (save for next class)
Practice pg 262 #4 & 5 until 1:05pm
2. Practice pg 262 #6 & 8
3. POWER
pg 264 ex prob #3
Prac prob pg 264 #9-11
4. Lab Work Time
TASKS:
0. Calculate and Fill-in a Typed Data Table - was due today for HW
1. Divide the "Conclude", "Apply/Going Further", and "Real World Physics" questions so each member has a fair amount. Write the question assignments on your lab doc (example: Khylia does Real World 1-3 and Apply #1, Joe Average does conclusion and Apply #2, Barbie does the graphs, etc...)
Lab Sections:
Introduction (answer the main question by presenting your hypothesis)
Data (data table and graphs go here)
Analysis Section
- will be completed in parts. Each group member will answer one to four questions. Those will be turned in on the due date (Friday 05/05), and will be the responsibility of the group member to which they are assigned.
Conclusion (was your hypothesis correct?)
End of day check:
- Have you shared or emailed the data table and graphs to all group members?
- Have you assigned questions/tasks?
Homework
- lab (see above)
- Answer the Edpuzzle Power Video questions LINK
- Quiz on work/work problems Wednesday
Gravitational Potential Energy (PEg)
#Goals: SWBAT...
1. ... state that energy changes from one form to another, and that the total amount of energy in a
closed system remains constant.
2. ... describe how the location of the zero (reference) line affects PEg
3. ... solve a gravitational potential energy problem
WARM-UP:
CH 11 pg 306: 29, 31, 33, 34, 35
FYI, I will be checking warm-ups #71-78 on Monday (05/09)
Band concert Tues 05/10. 7PM. The PA. $5. Be there or be □
If you missed the Table of Friends from last class, copy it from a neighbor...
CLASSWORK:
0. Warm-Up and HW Review
1. Stump the Chump
- pg 285-289
2. Practice Problems:
pg 287 #1-3
HOMEWORK:
Labs are due Monday.
Also...
Watch: http://www.flippingphysics.com/intro-pee.html
1. Define Elastic Potential Energy
2. Write the equation for Elastic Potential Energy
3. What is a Spring Constant?
4. What is the state of the rubber band in it's equilibrium position.
5. What are the units of Elastic Potential Energy?
6. Can Elastic Potential Energy be negative?
and:
http://www.flippingphysics.com/intro-coe.html
7. List the three different types of mechanical energy
8. Mr. Terry drops a weight as a demo of COE. What type of energy does the weight have prior to falling? Right before it hits the ground?
9. When is mechanical energy conserved?
10. Near the end of the video, how does Mr. P demonstrate of conservation of mechanical energy?