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Tuesday, October 21, 2014

C2 - Energy Videos - HW

Video A. - makemegenius "Energy"
video

1. Energy is the ability to do ____.
2. What are three sources of energy?
3. Energy cannot be _______ or _________, it can only be stored or transferred.  Put this statement in your own words.
4. Compare/Contrast Potential Energy and Kinetic Energy
5. Make your own example of PE transforming into KE; draw a picture.

video


Video B. - The Story of Potential Energy and Kinetic Energy
1. What are two different ways that we can increase Kinetic Energy?
2. How is it that even air has energy?
3. What are two ways to increase Potential Energy?
4. "That Potential Energy will be transformed into Kinetic Energy.  What is happening in the video during this statement?

Monday, October 20, 2014

Lab # 2 – Crazy Coasters and the Exploration of Potential vs. Kinetic Energy

Lab # 2 – Crazy Coasters and the Exploration of Potential vs. Kinetic Energy

Introduction
The purpose of the coaster's initial ascent is to build up its potential energy. The concept of potential energy, often referred to as energy of position, is very simple: As the coaster gets higher in the air, gravity can pull it down a greater distance. You experience this phenomenon all the time: think about riding your bike or pulling your sled to the top of a big hill. The potential energy you build going up the hill can be released as kinetic energy -- the energy of motion that takes you down the hill.
  
Problem   
How does height affect the energy on an object?

Hypothesis   

 I hypothesize that the higher…..


Materials
Foam pipe insulation
Glass marble
Ruler
Tape
Triple beam balance

Procedure
  1. Construct your crazy coaster track using the materials provided.
  2. Measure the length of track and record your data into your Results.
  3. Lay the track on the ground and make a loop with 1/3 of the length; the loop should be ~ 24-30 cm in diameter.  Tape the loop to the side of the track to keep its shape.
  4. Take turns trying to get the marble to complete the loop successfully; a marble that does not complete the loop or jumps the track is unsuccessful.  Record your data in the table below and make any additional observations on its energy. 
  5. Using a balance, weigh the mass of the marble and enter it below.
  
Additional Data

Mass of marble = ___ grams
Length of track = ___ cm
Loop diameter = ___ cm

Results  

Starting height (m)
Successful loop completion by marble – 3 trials (Y/N)
Additional observations about the marble's "energy" – three sentences, one for each observation
0.25
1.
2.
3. 
1.
2.
3.
0.50
1.
2.
3.
1.
2.
3.
0.75
1.
2.
3.
1.
2.
3.
1.00
1.
2.
3.
1.
2.
3.
1.25
1.
2.
3.
1.
2.
3.
1.50
1.
2.
3.
1.
2.
3.
1.75
1.
2.
3.
1.
2.
3.
2.00
1.
2.
3.
1.
2.
3.




 Analysis

1.        At what heights were you able to successfully complete the loop?


2.        Why didn’t the marble complete the loop at lower positions?  At higher positions?


3.        How does height affect potential energy?


4.        Where on the crazy coaster was the marble’s potential energy  at its lowest?  Its highest?  Draw a picture and label these positions.


5.        A.  Describe the energy the marble would have at a starting height of 0.0 m. 
B.  Calculate the PE of your marble at a starting height = 0.0 m.

6.        Starting height minimum for successful loop = ____ cm
7.       Starting height maximum for successful loop = ____ cm
8.        Calculate the marble’s Potential Energy (P.E.), at each position, using the following equation: Potential Energy = (mass)(gravity)(height)
P.E. = mgh
 (note: gravity ~ 10 m/s2)

Conclusion



















Thursday, October 16, 2014

601 - Computer Lab: Introduction to Energy

Have fun exploring the Energy Essentials!

1. http://www.childrensuniversity.manchester.ac.uk/interactives/science/energy/what-is-energy/

 Play the , "What is Energy?" game.  
Match all the types of energy correctly, then answer the following questions in your Science Notebooks.
A. Why do we need energy?
B. What are the different forms of energy? 
C. Pick three forms of energy; where do you see evidence of each form of energy as you complete this assignment?
D. Put the following information into your own words: You can change energy from one type to another.
E. Complete the Quiz; how many did you get right?


Play the, "How do we make Electricity?" game.
1. What does a generator consist of?
2. What happens when the magnet spins inside the coil of wires?
3. List three ways that a power plant turns a turbine, which spins the generator, that produces electricity.
4. Take the quiz.  How did you do?  What was your score?

3. Watch the BrainPOP video, "Energy Sources", take the Quiz, then write the answers in your Science Notebooks.

Tuesday, October 14, 2014

Energy Sources


1. Watch the BrainPOP video, "Energy Sources", take the Quiz, then write the answers in your Science Notebooks.



2. Play the , "What is Energy?" game.  
Match all the types of energy correctly, then answer the following questions in your Science Notebooks.
A. Why do we need energy?
B. What are the different forms of energy? 
C. Pick three forms of energy; where do you see evidence of each form of energy as you complete this assignment?
D. Put the following information into your own words: You can change energy from one type to another.
E. Complete the Quiz; how many did you get right?

Tuesday, October 7, 2014

HW Assignments

1. HW – www.brainpop.com
“scientific method”
Username: ps220
Password: brainpop
Review quiz 

2. Q/A from Science Videos

3. Science Journal: Write down three examples of science in your everyday life.

4. p. 14 Mini-LAB
Perform the investigation, soda vs. diet soda, at home.  Include the following information in your scientific report, to be completed in your Science Notebooks: Problem, Hypothesis, Materials, Observations, Inferences, Independent Variable, Dependent Variable, and Constants.  

C1S1
1.  Read pp. 6-7, 11
2.  Reading Check Q/A
3. Fig. 7 Blue Q/A
4. Self Check Q/A #1,3-5
5. Vocabulary
C1S2
1.  Read pp. 12-18
2.  p. 16 BQ
3.  p. 17 RC
4.  p. 20 SC #1,2
5.  Vocabulary
6.  HW – p. 14 Mini-LAB, Science Article, Ch. 1 Test (Friday)
7.   C1S3:   vocabulary, blue questions, reading check, self check Q/A #1,2,6
8.  C1S4:   vocabulary, blue questions, reading check, self check Q/A #1 
9.  HW – Ch. 1 Review
     p. 35 Visualizing Main Ideas

     pp. 36-37 Ch. 1 Review #1-3,5,6,9-11,13-18, 281, 23, 25, 28

Tuesday, September 30, 2014

Scientific Method - presented by Mythbusters!

1. Watch the video, "Scientific Method Classroom Lesson: Myth Buster. Flag Hoax on the moon."

2. Answer the questions that pop up in the video; do this in your Science Notebook.  Be sure and label all of the questions.  

When: Friday, 10/3/14
Where: Science Notebook

Scientific Theory vs Scientific Law

What is the difference between a scientific theory and a scientific law?   Einstein and Newton will help you understand!


When: Friday, 10/3/14
Where: Science Notebook

Friday, September 19, 2014

Lab#1 - How is a controlled experiment formed?

Lab#1 - How is a controlled experiment formed?

Have you ever wondered whether light or dark clothing would be more comfortable on a hot, sunny day?  Scientists conduct scientific experiments to solve problems like this.  They use a process called the scientific method.
  
Problem

How does color affect heat absorption?

Hypothesis

 I hypothesize that…  I believe that….  I think that…  I predict that…

  
Materials  (stuff we need to do our experiment)

Virtual Lab

Procedure  (step by step list of instructions, kind of like a recipe)

Results

Jacket Color
Denim 'C
Black
Blue

Green

Yellow

White

  
Jacket Color
Wool 'C
Black

Blue

Green

Yellow

White

  
Jacket Color
Nylon 'C
Black

Blue

Green

Yellow

White


--Each data table must have a bar graph accompanying it--

Analysis

  1. What was the problem you were trying to solve?


  1.  What was the independent variable? 

  1. What was the dependent variable?


  1. What were your constants?


  1. What else could you have tested in this experiment?  Explain.


  1. How does the color of the jacket affect heat absorption?


  1. Describe the strengths and weaknesses of the computer model you used in the experiment.  How could you go about conducting this experiment with your jackets?


8.       8. What evidence can you find that suggests darker materials absorb more thermal energy than lighter materials?
  
Conclusion

What was your problem?
 Restate your hypothesis.  Was your hypothesis right or wrong?  What facts would support this?
 What did you learn in this lab?
 What did you like about this lab?
 What were some challenges you had to deal with?
 What could you do next with this problem?  What other tests could you perform?
 Write down any other additional thoughts, observations, inferences, etc.

When: Monday, 10/6/14
Where: Science Lab Notebook

Wednesday, September 17, 2014

Science Articles

Read a science based article.  Learn how Science is happening in our daily lives and how it relates to you. You can get your information from a newspaper, magazine or from the internet. 

Remember, science articles are due every Friday! If you don't complete your science article by Friday, pm Homeroom, it's possible that you will be staying after school on Friday to complete it. Late articles will not be accepted.

 Follow these simple steps to make an A!
1) Summarize the article in 5-7 sentences (i.e. What is the article about?)
2) How does this affect us?
3) Why is this important?
4) How is this science related?
5) Pick a science word and write its definition.  Use a dictionary or www.dictionary.com
6) Draw a picture!



4
3
2
1
0
Total Points
Heading, Neatness, Overall Organization
The loose leaf is neat, the heading is legible, the work is organized
There is some disorganization. 

Parts of the heading are missing.
There is no heading.  The loose leaf is torn.  It is disorganized.

Summary explaining the main idea
There are at least five sentences in the summary paragraph
There are only four sentences in the summary paragraph
There are only three sentences in the summary paragraph
There are only one to two sentences in the summary paragraph.
There is no summary.

1)How is it science related? 2) Why is this important? 3) How does this affect us?
All of the Science questions have been answered.
Two of the three Science questions have been answered.
One of the Science questions has been answered.
The questions have not been answered properly, they have been copied, etc.
None of the Science questions has been answered.

Science word dictionary definition
There is a Science word from the article that has a proper dictionary definition.



There is no definition, it has been made up, the word is not from the article, etc.

Science illustration
There is a student constructed Science illustration with color.
There is a student constructed Science illustration with no color.
There is a printed out Science illustration.
Minimal effort has been put into the Science illustration.
There is NO Science illustration.