Ron Liskey

Pulleys

A pulley is collection of one or more wheels over which a rope is looped. The arrangement makes it easier to move and lift heavy objects.

Ron Liskey

Vocabulary Echo (Reflection Phenomena) Amplitude (Volume) Pitch Percussion Friction Vibration Resonance Tone Notes (Musical Notation) Sound Qualities Noise Music Intervals Beat and Rhythm Speed of Sound Sources of Sound Wind (air) String (plucking, strumming, bowing) Percussion (includes pianos!) Friction (scratching a chalkboard, etc.) Electronic (a variety of sources from vibrating crystals to electromechanical devices) Qualities of Sound Some sounds are high and others low; some are loud and others barely audible; some are pleasant and others harsh.

Ron Liskey

Bridge Videos

Verrazzano Narrows Bridge (New York) Swaying in high winds on Monday November 30 2020 (00:38) Tacoma Bridge (4:12) 10 Bridge Failures Explained (11:06) China’s Bridges (3:44)

Ron Liskey

Bridges

Main Lesson Page Requirements Title: Bridges Summary: Using your class notes, write a summary of the engineering challenges and solutions in bridge building. Challenges to consider include: Design and cost limitations Intended usage constraints Wind and vibration Weight and strength vs. flexibility Length and height of span Construction logistics (availability of skills, equipment and supplies) Environmental constraints (terrain, access, weather, etc.) Material fatigue vs. intended lifetime usefulness Illustration: Draw one of the bridges we study, and label key elements of it’s design that demonstrate how engineers solve common bridge building challenges.

Ron Liskey

Electromagnetism

Electromagnetism is one of the four fundamental forces (or interactions) of nature, which include the strong interaction, the weak interaction, and gravitation. It seems to be a combination of two fields—the electric field and the magnetic field. We understand surprisingly little about electromagnetic energy, despite the fact that we are utterly reliant on it for everything from the electrical impulses in our brain and nervous system to global wireless communications. It warms the Earth, creates what we call light and colors, and produces rainbows and the Northern Lights.

Ron Liskey

Electromagnetism

Electromagnetism is one of the four fundamental forces (or interactions) of nature, which include the strong interaction, the weak interaction, and gravitation. It seems to be a combination of two fields—the electric field and the magnetic field. We understand surprisingly little about electromagnetic energy, despite the fact that we are utterly reliant on it for everything from the electrical impulses in our brain and nervous system to global wireless communications. It warms the Earth, creates what we call light and colors, and produces rainbows and the Northern Lights.

Ron Liskey

Electromagnetism

Vocabulary Electromagnetism: A fundamental phenomenon of nature that seems to be a combination of two fields—the electric field and the magnetic field. Discoverers Michael Faraday James Clerk Maxwell Heinrich Hertz Guglielmo Marconi The electromagnetic force is a mysterious field that is essential to everything we know. It seems to be composed of two fields—the electric field and the magnetic field. We understand surprisingly little about electromagnetic energy, despite the fact that we are utterly reliant on it for everything from the electrical impulses in our brain and nervous system to global wireless communication systems.

Ron Liskey

Electromagnetism

Vocabulary Electromagnetism: A fundamental phenomenon of nature that seems to be a combination of two fields—the electric field and the magnetic field. Discoverers Michael Faraday James Clerk Maxwell Heinrich Hertz Guglielmo Marconi The electromagnetic force is a mysterious field that is essential to everything we know. It seems to be composed of two fields—the electric field and the magnetic field. We understand surprisingly little about electromagnetic energy, despite the fact that we are utterly reliant on it for everything from the electrical impulses in our brain and nervous system to global wireless communication systems.

Ron Liskey

Electromagnetism

Electromagnetism is one of the four fundamental forces (or interactions) of nature, which include the strong interaction, the weak interaction, and gravitation. It seems to be a combination of two fields—the electric field and the magnetic field. We understand surprisingly little about electromagnetic energy, despite the fact that we are utterly reliant on it for everything from the electrical impulses in our brain and nervous system to global wireless communications. It warms the Earth, creates what we call light and colors, and produces rainbows and the Northern Lights.

Ron Liskey

Isaac Newton

Isaac Newton (1643 - 1727 CE) Sometimes called the father of modern science, Isaac Newton revolutionized our understanding of the world. He was a Renaissance Man with major accomplishments in many fields, including astronomy, optics, physics and mathematics. Newton gave the world revolutionary new theories on gravity, planetary motion and optics. With the publication of Philosophiae Naturalis Principia Mathematica in 1687, Newton laid the groundwork for modern physics. The publication become known as the “first great unification”, as it unified our understanding of gravity on Earth with the behavior of planets, solar systems, and stars.

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