March 27
Topic: Wave Interactions
Activity: Reading - Wave Interactions with graphic organizer
Homework: Completion of Wave Review Sheet from last Week
Quiz on Tuesday for Wave Interactions
March 28
Topic : Sounds - Amplitude and Pitch
PPT Notes with Graphic Organizer
Homework: Period 6 only Section Review on Wave Interactions and Sound
Period 5 - 7 will receive the assignment tomorrow for homework.
Continue to visit USA TEST PREP for practice.
Tuesday, March 28, 2017
Thursday, March 2, 2017
Tuesday, February 14, 2017
February 14th
WARM UP:
|
Which would be best categorized as heat transfer by
convection?
a.
Wearing a
white shirt to stay cool on a summer day
b.
Noodles
rising and falling in a pot of boiling water
c.
Touching a
metal spoon that is sitting in a pot of boiling water
d.
Using
a heating blanket to get warm
Homework: STATIC ELECTRICITY REVIEW SHEET
RETAKE FOR UNIT TEST ON ENERGY FRIDAY IF SCORE WAS 80% AND BELOW.
2nd SET of Vocabulary Words due on Friday - February 17th
Please visit QUIZLET for practice.
|
Monday, February 13, 2017
FEBRUARY 13TH
TODAY'S ASSIGNMENT:
HOMEWORK FOR TONIGHT:
5 minute vocabulary - Heat
-Explain the term
- Example
- Write the word in a sentence
- illustration
After 5 min vocabulary:
Brain Pop Video with graphic organizer (Periods 6-7) STATIC ELECTRICITY
Period 5 : QUIZLET.LIVE practice review
Next students will complete the following stations:
A. Lab Activity – Separating Salt from Pepper
B. Quizlet Practice
C. USA Test Prep Practice
D. Guided Reading (Static Electricity)
Closing: Explain what static electricity is. Use examples if needed.
|
HOMEWORK FOR TONIGHT:
Name:______________________ Date:_________________
Website link: http://www.ck12.org/book/CK-12-Physical-Science-Concepts-For-Middle-School/section/5.64/
Directions: READ THE ARTICLE AND VIEW THE VIDEOS ON THE ABOVE LINK. Answer the questions at the bottom of this reading handout.
You’re a thoughtful visitor, so you wipe your feet on the welcome mat before you reach out to touch the brass knocker on the door. Ouch! A spark suddenly jumps between your hand and the metal, and you feel an electric shock.
Q: Why do you think an electric shock occurs?
A: An electric shock occurs when there is a sudden discharge of static electricity.
What Is Static Electricity?
Static electricity is a buildup of electric charges on objects. Charges build up when negative electrons are transferred from one object to another. The object that gives up electrons becomes positively charged, and the object that accepts the electrons becomes negatively charged. This can happen in several ways.
One way electric charges can build up is through friction between materials that differ in their ability to give up or accept electrons. When you wipe your rubber-soled shoes on the wool mat, for example, electrons rub off the mat onto your shoes. As a result of this transfer of electrons, positive charges build up on the mat and negative charges build up on you.
Once an object becomes electrically charged, it is likely to remain charged until it touches another object or at least comes very close to another object. That’s because electric charges cannot travel easily through air, especially if the air is dry.
Q: You’re more likely to get a shock in the winter when the air is very dry. Can you explain why?
A: When the air is very dry, electric charges are more likely to build up objects because they cannot travel easily through the dry air. This makes a shock more likely when you touch another object.
Static Discharge
What happens when you have become negatively charged and your hand approaches the metal doorknocker? Your negatively charged hand repels electrons in the metal, so the electrons move to the other side of the knocker. This makes the side of the knocker closest to your hand positively charged. As your negatively charged hand gets very close to the positively charged side of the metal, the air between your hand and the knocker also becomes electrically charged. This allows electrons to suddenly flow from your hand to the knocker. The sudden flow of electrons is static discharge. The discharge of electrons is the spark you see and the shock you feel.
How Lightning Occurs
Another example of static discharge, but on a much larger scale, is lightning. You can see how it occurs in the following diagram (Figure below).
During a rainstorm, clouds develop regions of positive and negative charge due to the movement of air molecules, water drops, and ice particles. The negative charges are concentrated at the base of the clouds, and the positive charges are concentrated at the top. The negative charges repel electrons on the ground beneath them, so the ground below the clouds becomes positively charged. At first, the atmosphere prevents electrons from flowing away from areas of negative charge and toward areas of positive charge. As more charges build up, however, the air between the oppositely charged areas also becomes charged. When this happens, static electricity is discharged as bolts of lightning.
Summary
· Static electricity is a buildup of electric charges on objects. It occurs when electrons are transferred from one object to another.
· A sudden flow of electrons from one charged object to another is called static discharge.
· Examples of static discharge include lightning and the shock you sometimes feel when you touch another object.
Review
1. What is static electricity?
2. How does static discharge occur?
3. Explain why a bolt of lightning is like the spark you might see when you touch a metal object and get a shock.
Thursday, January 26, 2017
January 23rd - January 25th
Monday – January 23rd
u REVIEW
ON ENERGY:
ANSWER QUESTIONS 1-9 (10 MINUTES) You may use your notes or
textbook resource starting on page 240.
After review:
u Forms
of Energy Video:
HOMEWORK: Types of
Energy Reading Sheet
Tuesday – January 24th
Completion of previous day’s activities:
Homework: Types
of Energy Review Sheet
Wednesday – January 25th
FORMS OF ENERGY QUIZ
After quiz, ENERGY TRANSFORMATION NOTES
Homework: Energy Transformations Review Sheet
Wednesday, January 18, 2017
January 18th
Computer Lab Day:
Activity: Energy Skate Lab (PHET)
Activity: Energy Skate Lab (PHET)
PhET Simulator: Name: ________________________
Energy Skate Park! Date:
____________ Period: ______
1) Type in the web
address: https://phet.colorado.edu/en/simulation/legacy/energy-skate-park
and click the “Play” button.
2) Choose which skater
you’d like to use (third option down on right) then “x” out of option window.
3) Click on “Bar Graph”. Watch as the skater moves
across the track and how it changes the levels of Potential and Kinetic Energy. (You can slow or pause the
skater down at the bottom of the simulator window to help you observe).
a) When
is the gravitational potential energy
the highest? _______________ The lowest? ________________
b) When
is the kinetic energy the
highest? ________________ The lowest? ________________
c) When
are the kinetic and gravitational potential energy levels the same?
____________________________
d) Can
you think of a scenario when the kinetic and gravitational potential energy
could both be zero? Describe
or draw how this could be
possible below:
4) Notice the 3 blue
circles, one at each end of the track and one in the middle. Click on one
circle and hold down. Move the circle to change the track’s shape to however
you’d like and observe how the track responds. When you feel comfortable
manipulating the track, click “Reset”
and Select “Yes”.
5) Move the circles to
make the right side of the
track LONGER than the left side of the track. Click on
“bar graph”.
a) Bring the skater up
to various heights on the left
side of the track (at the top, half way up, etc.) and then observe what happens
when you let them go. Do this until you can predict to what height the skater
will reach on the right side of the track. Pick a height of release and sketch
the path the skater will take when you release them:
b) Use the Law of Conservation of Energy to
explain how you can predict the height that the skater will reach on the right
side depending on where you release them on the left side:
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.
6) Now make the right side of the track SHORTER than the left side of the track. What do you think will happen if you
release the skater from the top of the left side of the track? Use the
relationship between gravitational potential energy and kinetic energy to explain
your thinking and then test to see if your prediction was correct:
________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________.
7) Notice the yellow
window labeled “Tracks” in the top
left corner. This feature allows you to build your own track in the simulator
window. All you have to do is select and drag the new piece of track to the
existing track and line up the blue circles for where you want them to join.
Then, you can manipulate the track to create hills, loops, drops, etc! Practice
getting familiar with creating new shapes and when you’re ready, click “Reset” and select “Yes”.
8) Now you are going to
create your own skatepark! Your mission is to create a track complete with
hills, drops and multiple loops that your skater can complete from start to
finish without getting stuck OR flying off! Carefully consider the relationship
between potential and kinetic energy and then sketch your plan below!
9) Once your sketch is
complete, test to see if your skater is able to successfully complete the track
from start to finish!
a) Was your skater
successful on your first attempt? ______________________
b) If no, indicate on
your sketch where your skater became stuck or flew off. Then, edit your plan
and try again! Indicate any updates you make using a different color or dotted
line- create a key so we can clearly see any changes you’ve made!
10) On your sketch above, clearly label the points
of greatest PE and KE and least PE and KE.
***Use the options on the right to see if your track can work in outer space!
On the Moon? On Jupiter?***
After lab simulation activity; QUIZLET PRACTICE:
Period 5: Quizlet invite link:
Period 6: QUIZLET invite link: https://quizlet.com/join/S6vY9MBku
Period 7: QUIZLET invite link: https://quizlet.com/join/EAFwSFFmK
January 17th
BENCHMARK TESTING TODAY!!!
Homework: Kinetic and Potential Energy Webquest (1-5) Including Venn Diagram on Kinetic and Potential Energy Due Wednesday - January 18th
Homework: Kinetic and Potential Energy Webquest (1-5) Including Venn Diagram on Kinetic and Potential Energy Due Wednesday - January 18th
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