Mr. Powell Science
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  • Home
  • APES
    • Unit 1: Ecosystems
    • Unit 2: Biodiversity
    • Unit 3: Populations
    • Unit 4: Earth Systems and Resources
    • Unit 5: Land and Water Use
    • Unit 6: Energy Resources and Consumption
    • Unit 7: Atmospheric Pollution
    • Unit 8: Aquatic and Terrestrial Pollution
    • Unit 9: Global Change
  • CHS Environmental Science
    • Environmental Chemistry
    • Ecosystems and Population Interactions
    • Earth History and Natural Resources
    • Weather and Climate
  • Science Resources
    • Genetics >
      • Genetics Exam Review
    • Evolution
    • Chemistry
    • Physics - Motion and Forces >
      • Speed, Velocity, and Acceleration
      • Force
      • Newton's 3 Laws of Motion
      • Gravitational Force
      • Weight
      • Newton's Second Law - Finding a Net Force
      • Newton's Second Law of Motion - Finding Acceleration
      • Newton's Third Law of Motion
    • Physics - Energy and Waves
    • Astronomy
    • Next Generation Science Standards (NGSS)
  • BMS Lacrosse
  • STEM at CHS
  • About
  • Contact

Acceleration due to Gravity on Earth

2/28/2019

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On earth all objects accelerate at the same rate, 9.8 m/s2. However air resistance can slow down objects with greater surface area. In class we discussed how if there was no air to push back up on objects then they would in fact fall at the exact same rate, which is demonstrated in the video to the right.
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Isaac Newton: The Last Magician

2/26/2019

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Acceleration and Engineering

2/15/2019

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After a quick debrief of our quiz from yesterday we discussed different professions that utilize the skills we are learning as we study Physics. Engineering uses a lot of practical application of physics concepts. We watched the video to the right as a brief overview of what Engineers do. Then we learned the formula for acceleration and began some practice problems.
Gold Tape Question: Watch another video from the Crash Course Engineering Series and write a one paragraph summary of what you learned about engineering.
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Motion Graphs

2/12/2019

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Today we analyzed a motion graph and answered questions about that graph. The different sections of the graph below can be described as the following.

A-B = Positive acceleration (Speeding Up)
B-C = Constant Speed
C-D = Negative Acceleration 
(Slowing Down)
D-E = At Rest
E-F = Slow Constant Speed

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Even More Speed and Velocity with Dr. Skateboard

2/11/2019

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via GIPHY

Today we practiced solving for speed, distance, and time using the equations we worked out last week. We also watched the super-rad video on motion from Dr. Skateboard. If you missed it or want to see it again, check it out in the video to the right!
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Speed and Velocity

2/8/2019

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In class today we finished our Hot Wheels lab, you can see an example of the finished data analysis and graph below. Also we watched a music video about speed and velocity which we will be talking much more about starting Monday. Have a great weekend!
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Speed, Velocity, and Acceleration

2/7/2019

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Hot Wheels Hustle

2/6/2019

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In class we conducted a lab in which we raced hot wheels cars vs. matchbox cars to see which ones can achieve the greatest speed going down a ramp. Tomorrow you will have a substitute and we will finish our lab on Friday. 
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Frame of Reference Continued and Speed

2/5/2019

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In class we continued our discussion of frame of reference as well as derived the formula for speed from a distance vs. time graph. These are all skills we will need during our study of motion.
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Inertia and Frame of Reference

2/1/2019

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 In class today we discussed Newton's First law of motion which simply states that "An object in motion stays in motion and an object at rest stays at rest until acted on by an outside force." Newton's first law is also known as the law of Inertia. Inertia is "An object's tendency to resist a change in motion." We also observed motion from different frames of reference. A frame of reference is "The perspective (position) from which you observe the motion of an object." Watch the videos below to further explore inertia as well as frame of reference.

​Gold Tape Question: According to Mr. P ( From Flipping Physics, not Mr. Powell) What is the best definition of mass? hint: Watch the video "Introduction to Inertia" below to find out the answer!
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    Author

    Mr. Powell is an 8th grade Science Teacher in Western Colorado.

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