Friday, December 13, 2013

Demonstrations: Thermal E, Final exam essay topics

Today we had several demonstrations involving Thermal E and HEAT.

Final exam essay topics released on paper in class today:
1. Explain an object’s motion (a car speeding up, a baseball being thrown) verbally in terms of what happens to the object, mathematically or visually with numbers, and graphically, relating velocity, position, or acceleration.
 2. When given a scenario, explain an object’s motion as the result of a set of forces acting on it.  Explain how net force determines the direction and magnitude of acceleration.
 3. Explain inertia, and relate it to a scenario.  (riding in a car going around a corner, a roller coaster, or a car accident)
 4. Explain how friction works, and the effect of changing: surface type, surface area, weight, or angle of surface may affect it.
 5. Verbally and mathematically, relate energy to work done on an object, either through showing work ~ GPE when work is done to lift something, or work ~ KE when work is done to speed up or slow down something. 
 6. Using information about net force and mass, determine the effect on an object’s acceleration.
 7. Describe the relationships between input work, output work, efficiency, time, and power, and relate them to a scenario given.
 8. Explain heat, why it happens, and different mechanisms for heat.  Relate specific heat or conductivity to a given scenario to explain it.
 9. Explain how a machine alters the type of work done, not the amount, and diagram an example to explain visually and mathematically.
 10. Analyze the energy involving a specific system; where the energy is from, where it ultimately goes, and the forces/ processes involved in changing/converting energy in the context of its conservation, for small or universal systems.

Wednesday, December 11, 2013

Hour of Code, Stuff to start reviewing for finals

12/12/13 Class agenda:

Make sure you are ALL on task today; reports to the contrary from substitutes or librarians will affect what we do in class tomorrow adversely.

1. try to complete the 20 puzzles on the "Hour of Code".  Not required by any means, but try it out for a few minutes for fun at least!  google search Hour of Code.  The library's youtube is probably still blocked (as is the sound on those computers) so on the video windows you can click on the "notes" tab and get all the important info. from the tutorials.
My kindergartner was able to complete rounds 1-5 last night and I got through all 20 without much effort; you can too!

After finishing, you can continue with more programming exploration OR start studying for your final for my class.  Objectives are listed below; some are as simple as understanding definitions / concepts and some are related to graph analysis or manipulation of equations.  You can go back through your notes to see practice problems on these topics or try to describe these in context.
Below the objectives are some more concrete, traditional types of review.  Try to answer each and discuss answers with your peers.  Chapters in the text you should be comfortable with: #1,3,4,5,6,and 8.  If nothing else, make sure you are at least solid on the vocabulary from these chapters still, as you won't be able to do anything with concepts unless you get the vocabulary.


Semester 1 objectives:
Honors Physical – Earth Science 1st Quarter Objectives
1. Represent and analyze the motion of an object graphically.
2. Analyze the velocities of two objects in terms of distance and time (verbally, with diagrams, graphs, and math)
3. Measure and analyze an object’s motion in terms of speed, velocity, and acceleration (verbal, diagram, graph,math)
4. Recognize that inertia is a property of matter that can be described as an object’s tendency to resist acceleration, and is dependent on an object’s mass.
5. Determine the effect (direction and magnitude) of the sum of forces (Fnet) acting on an object.
6. Predict the path of an object when the net force on it changes.
7. Compare the momentum of two objects in terms of mass and velocity
8. Explain that the total momentum remains constant in a system (is conserved)
9. Identify and describe the forces acting on an object (type of force, direction, magnitude in Newtons) using a force diagram.
10. Describe gravity as an attractive force among all objects.
11. Compare and describe gravitational forces between two objects in terms of their masses and the distances between them.
12. Describe weight in terms of the force of a planet’s or moon’s gravity acting on a given mass.
13. Recognize all free falling bodies accelerate at the same rate due to gravity regardless of their mass (only air resistance affects them differently)
14. Using information about net force and mass, determine the effect on acceleration (Newton’s 2nd Law)
15. Identify forces acting on a falling object (weight and air resistance) and how these forces affect the rate of acceleration.
16. Analyze force pairs (action and reaction forces) when given a scenario and describe their magnitudes and directions (Newton’s 3rd Law)

17. Explain orbital motions of moons around planets, and planets around the Sun, as the result of gravitational forces between those objects.
18. Relate an object’s gravitational potential energy to its weight (mass x gravity) and height relative to the ground.
19. Relate kinetic energy to an object’s mass and its velocity (verbally and mathematically)
20. Distinguish between examples of kinetic and potential energy
21. Describe the transfer of energy that occurs as energy changes; kinetic - potential energy within a system (a car on a roller coaster track, a child on a swing, a diver jumping from a board)
22. Describe the effect of work on an object’s kinetic and potential energy
23. Classify different ways to store energy (chemical, elastic, thermal, mechanical, electromagnetic, nuclear) and describe the transfer of energy as it changes within a system; losses to thermal, total E present remains constant.
24. Differentiate between different ways that thermal E may be transferred (Heat) and the implications of density, conductivity, and temperature as heat occurs.
25. Differentiate between thermal energy (the total internal energy of a substance which is dependent upon mass), heat (thermal energy that transfers from one object or system to another due to a difference in temperature), and temperature (the measure of average kinetic energy of molecules or atoms in a substance)
26. Interpret examples of heat (thermal E transfer) as convection, conduction, or radiation.
27. Differentiate between the properties and examples of conductors and insulators.
28. Explain that thermal E always flows from high temperature to lower temperature objects.
29. Recognize and describe mechanisms that cause all forms of energy end up as thermal E (friction, collisions, etc.)

30. Use principles of thermal expansion to predict behavior of objects experiencing temperature changes; explain reasons changing thermal E can cause an object’s volume to change (faster moving particles and more collisions)
Some of the review activities I'd suggest besides working through explaining the above mentioned items:
A+ objectives:

TGT games




Tuesday, December 10, 2013

TGT Review, HMWK for Wed

Sorry!  The links work now!!!!
Monday we worked on a T/G/T review game after I went over solutions to some of the tougher math problems on the homework you were to turn in last Thursday.
Here's a copy of the T/G/T game for you to review on your own.

Homework for Wednesday:  Read p. 266-270, p. 270#1-6

All classes meet in the Library this Thursday!  
Freeman will be teaching ACT to some seniors who are about to take it, and my classes will be doing finals review.  (we won't likely set aside specific days at the end of the semester)

Objectives from this unit

some review for you

Tuesday in class:  we'll go over the multiple choice answers from your homework that was turned in yesterday and take notes on Specific Heat, plus run through some review from this unit.

Wednesday will be demonstrations and activities involving conduction, convection, and radiation.

Thursday, December 5, 2013

Monday, December 2, 2013

Machines, efficiency, POWER

Today in class: notes on machines, efficiency, and power.
Work ahead on homework or use time to get help on marble GPE - KE lab.

Labs due Wednesday.
HMWK for Thursday:
Skim p. 166-174.
 p.174 #4-7,
p. 180#8-15,
p. 181#22-26