Conceptual Physics Alive: Gravity 1
Item # 99-0110
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Master teacher Paul Hewitt explains the inverse-square law and then relates it to the law of universal gravitation.
Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.
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Conceptual Physics Alive: Gravity 2
Item #99-0120
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Master teacher Paul Hewitt continues the discussion of gravitation with the emphasis on the ocean, earth, and atmospheric tides.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Resources
- Next-Time Question: Gravity Lock
- Next-Time Question: Earth Rise
- Next-Time Question: Apple Drop
- Next-Time Question: Shuttle
- Next-Time Question: Giant Plane
- Next-Time Question: Solar Black Hole
- Next-Time Question: Moon on a Cable
- Next-Time Question: Lunar Tides
- Next-Time Question: Body Tides
- Next-Time Question: Moon Orbit
Videos
Conceptual Physics Alive: Introduction
Item #99-0010
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Master teacher Paul Hewitt teaches non-computational Conceptual Physics. Observe Hewitt teach in a classroom with real students, using engaging demonstrations and artwork.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Conceptual Physics Alive: Linear Motion
Item #99-0020
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Master teacher Paul Hewitt teaches concepts on Linear Motion and discusses the effect of air resistance on falling objects. Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Conceptual Physics Alive: Vectors & Projectiles
Item #99-0030
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Master teacher Paul Hewitt teaches concepts on Vectors and Projectiles and introduces the idea of the independence of the horizontal and vertical components of motion for projectiles.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Resources
- Next-Time Question: Ground Speed
- Next-Time Question: Motorboat Race
- Next-Time Question: Nellie on Clothesline
- Next-Time Question: Book Friction
- Next-Time Question: Sailboat Speed
- Wind Impact
- Next-Time Question: Standing Wave
- Next-Time Question: Shock Wave
- Next-Time Question: Speed of Sound
- Next-Time Question: Pitch
- Next-Time Question: Violin
Videos
Conceptual Physics Alive: Newton's First Law
Item #99-0040
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Master teacher Paul Hewitt teaches concepts about Newton's 1st Law, and the concepts of net force and statics are also illustrated.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
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Conceptual Physics Alive: Newton's Second Law
Item #99-0050
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Master teacher Paul Hewitt teaches concepts on Newton's 2nd Law with a variety of examples, and the effects of friction on motion are shown using both sliding and falling objects. Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
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Conceptual Physics Alive: Newton's Third Law
Item #99-0060
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Master teacher Paul Hewitt teaches concepts on Newton's 3rd Law and demonstrates with numerous examples, including a tug-of-war.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Conceptual Physics Alive: Momentum
Item #99-0070
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Master teacher Paul Hewitt teaches how Newton's 2nd law is rearranged to the form: Impulse = Change in Momentum.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Conceptual Physics Alive: Energy
Item #99-0080
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Master teacher Paul Hewitt teaches concepts on Energy with a variety of demonstrations.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Conceptual Physics Alive: Center of Gravity
Item #99-0090
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Master teacher Paul Hewitt teaches concepts on Center of Gravity.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
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Conceptual Physics Alive: Rotation
Item #99-0100
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Master teacher Paul Hewitt teaches concepts on Rotation.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
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Conceptual Physics Alive: Gravity, Satellite Motion
Item #PX-9104
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Paul Hewitt teaches about Gravity and Satellite Motion.
Conceptual Physics Alive: Special Relativity 1
Item #99-0140
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Master teacher Paul Hewitt discusses the concept of time dilation that leads up to a showing of a 12-minute animated film "Relativistic Time Dilation." Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Conceptual Physics Alive: Special Relativity 2
Item #99-0150
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Master teacher Paul Hewitt discusses length, momentum, mass, and Einstein's famous equation E=mc² and is supported with several fanciful examples.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Conceptual Physics Alive: Atoms
Item #99-0160
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Master teacher Paul Hewitt describes Bohr's atomic model with an emphasis on the smallness, emptiness, and plentifulness of atoms.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Conceptual Physics Alive: Scaling
Item #99-0170
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Master teacher Paul Hewitt distinguishes surface area and volume with simple demonstrations.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
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Conceptual Physics Alive: Liquids 1
Item #99-0180
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Master teacher Paul Hewitt teaches the concepts of density, pressure, and the depth-dependence of liquid pressure is used to develop the concept of buoyancy.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Resources
- Next-Time Question: Water Level
- Next-Time Question: Equal Areas
- Next-Time Question: Loaded Fire Truck
- Next-Time Question: Water Touch
- Next-Time Question: Teabag Tension
- Next-Time Question: Styrofoam Load
- Next-Time Question: Submarine
- Next-Time Question: Iceberg
- Next-Time Question: Density of Block
- Next-Time Question: Lunar Ice Cube
- Next-Time Question: Sandy Pool
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Conceptual Physics Alive: Gases
Item #99-0200
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Master teacher Paul Hewitt uses a demonstration-oriented lecture which focuses on the atmosphere--its weight, pressure, and the buoyancy it exerts on objects.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Resources
- Next-Time Question: Weight of Air
- Next-Time Question: Pinched Bottle
- Next-Time Question: Balanced Balls
- Next-Time Question: Air Pressure
- Next-Time Question: Air-Filled Floating Balloon
- Next-Time Question: Balanced Balloons
- Next-Time Question: Wood and Iron
- Next-Time Question: Deep Glass
- Next-Time Question: Spinning Candle
- Next-Time Question: Candle in Shuttle
- Next-Time Question: Burning Candles
Videos
Conceptual Physics Alive: Heat, Temp and Expansion
Item #99-0210
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Master teacher Paul Hewitt distinguishes temperature and heat. The expansion of solids, liquids, and gases is also compared.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Resources
- Next-Time Question: Sparkler
- Next-Time Question: Fire Walk
- Next-Time Question: Radioactive Granite
- Next-Time Question: Radiation Emitters
- Next-Time Question: Energy Glow
- Next-Time Question: Wave Emitters
- Next-Time Question: Coffee Cream
- Next-Time Question: Clear or Cloudy
- Next-Time Question: Radiator
- Next-Time Question: Cookware
- Next-Time Question: Space Gear
Videos
Conceptual Physics Alive: Heat Transfer
Item #99-0220
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Master teacher Paul Hewitt discusses conduction is related to many everyday examples and demonstrates boiling water under a variety of conditions.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
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Conceptual Physics Alive: Heat Radiation
Item #99-0230
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Master teacher Paul Hewitt teaches the temperature dependence of radiation frequencies is related to the greenhouse effect.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
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Conceptual Physics Alive: Heat: Change of Phase
Item #99-0240
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Master teacher Paul Hewitt compares the concepts of evaporation and condensation.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
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Conceptual Physics Alive: Vibrations & Sound 1
Item #99-0250
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Master teacher Paul Hewitt teaches concepts on Vibrations and Sounds. A coiled toy is used to illustrate the difference between transverse and longitudinal waves.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
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Conceptual Physics Alive: Vibrations & Sound 2
Item #99-0260
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Master teacher Paul Hewitt explains reflection, refraction, and speed of sound waves.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
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Conceptual Physics Alive: Light and Color
Item #99-0270
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Master teacher Paul Hewitt explains the electromagnetic nature of light and the reason its speed changes when passing through transparent materials.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Conceptual Physics Alive: Reflection and Refraction
Item #99-0280
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Master teacher Paul Hewitt teaches concepts on Reflection and Refraction. Total internal reflection and light dispersion are also discussed.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Resources
- Next-Time Question: Fermat Reflection
- Next-Time Question: Minimum-Size Mirror
- Next-Time Question: Mirror Image Distance
- Next-Time Question: Pocket Mirror
- Next-Time Question: Bridge Reflection
- Next-Time Question: Reflection on Water
- Next-Time Question: Refraction in Water
- Next-Time Question: Spear Fishing
- Next-Time Question: Laser Direction
- Next-Time Question: Under Water Vision
- Next-Time Question: Equinoxes
Videos
Conceptual Physics Alive: Light Waves
Item #99-0290
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Master teacher Paul Hewitt teaches concepts on Light Waves and demonstrates the interference of light waves with laser light and related to the colors of thin films.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
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Conceptual Physics Alive: Electrostatics
Item #99-0300
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Master teacher Paul Hewitt demonstrates electrostatic charging in a variety of ways--with a rubber rod, cat's fur, an electrophorus, a Wimshurst electrostatic generator, and a Van De Graaff generator.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Conceptual Physics Alive: Electric Current
Item #99-0310
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Master teacher Paul Hewitt demonstrates concepts in electric current and examples of Ohm's law are discussed.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Conceptual Physics Alive: Magnetism and E&M Induction
Item #99-0320
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Master teacher Paul Hewitt teaches concepts on Magnetism and E&M Induction. Hewitt examines electromagnets, motors, generators, and magnetic levitation in numerous demonstrations and examples.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
Conceptual Physics Alive: Radioactivity
Item #99-0330
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Master teacher Paul Hewitt teaches concepts on Radioactivity and discusses the differences between alpha, beta, and gamma radiation with emphasis on balancing nuclear equations.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
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Conceptual Physics Alive: Fission and Fusion
Item #99-0340
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Master teacher Paul Hewitt distinguishes and compares fission and fusion.Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).Notice: This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool. Replicating and distributing this digital content for profit without the authority of the copyright owner is an infringement of the copyright.
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Additional Details
Conceptual Physics Alive: Gravity 1 includes a digital video and questions set with answers.
Observe Paul Hewitt teach in a classroom with real students, using engaging demonstrations and artwork. In this video, the inverse-square law is explained and then related to the law of universal gravitation. Weight and weightlessness, the discoveries of the planets Neptune and Pluto, and the universality of gravitation are also discussed.
Gravity 1 Includes:
- Hewitt begins with patterns that underlie music and the stars.
- Gravitational equation explained with examples and questions.
- Kepler's laws.
- Demonstration of ellipse construction with string and tacks.
- Inverse-square law analogy with light from a candle.
- Questions to illustrate inverse-square law.
- Weight.
- Apparent weightlessness.
- Hewitt steps off the table and drops the ball (in slow motion} to demonstrate the effects of weightlessness.
- Apparent weightlessness of astronauts in a space shuttle.
- Examples of weight at various planetary locations: Infinitely far. At surface of twice-as-massive planet. At surface if your mass doubles. Atop a ladder so you're twice as far from the earth's center.
- Discovery of planet Neptune.
- Von Jolly's determination of G.
- Mass of planet earth.
- Moon's monthly spin.
- Being wrong and analogy of not falling while learning to roller skate.
- Torque and center of mass-gravity explanation of why only one side of the moon faces Earth.
Next-Time Question: Which pulls harder on the oceans of the earth, the moon or the sun? (SEE RESOURCES TAB FOR MORE)
Please note: The digital content will be sent to the email provided during checkout, once your order has been processed. Order will be processed no later than the next business day.
Digital format: The email you will receive will contain a hyperlink to download a .ZIP file containing a digital video (.MP4) and questions set with answers (.PDF).
Notice: The Conceptual Physics Alive Digital content is protected by copyright laws. Replicating and distributing this digital content without the authority of the copyright owner is an infringement of the copyright. This digital content can be used in physical or remote classroom settings (e.g., Google Classroom, Canvas, etc.), or Homeschool.
Resources
- Next-Time Question: Gravity Lock
- Next-Time Question: Earth Rise
- Next-Time Question: Apple Drop
- Next-Time Question: Shuttle
- Next-Time Question: Giant Plane
- Next-Time Question: Solar Black Hole
- Next-Time Question: Moon on a Cable
- Next-Time Question: Lunar Tides
- Next-Time Question: Body Tides
- Next-Time Question: Moon Orbit
