Mechanics

  • Inclined Planes and Wedges Lesson
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    Inclined Planes and Wedges Lesson

    by iijuan128 months ago

    This is part 1 of a 5 part hands-on unit on Simple Machines and Inventions. Race cars down ramps, compare carrying luggage to pulling it up an inclined plane, slice through apples using wedges,...!

  • Wheels and Axles Lesson
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    Wheels and Axles Lesson

    by iijuan128 months ago

    This is part 3 of a 6 part hands-on unit on Inventions and Simple Machines. Build and test waterwheels, use cylinders to make wheel cookies, experiment with matchbox cars to demonstrate friction, compare the mechanical...

  • How to Find the Depth of a Well by Dropping a Rock
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    How to Find the Depth of a Well by Dropping a Rock

    by TR Smith2 months ago

    A old trick for calculating the depth of a well or deep hole is to drop a rock into the well and measure how long it takes before you hear the rock hit the bottom. If the time between dropping the rock and hearing its...

  • Gears and Pulleys Simple Machines Lesson
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    Gears and Pulleys Simple Machines Lesson

    by iijuan128 months ago

    This is part 4 of a 6 part hands-on unit on inventions and simple machines. Build and test pulleys, play pulley tug-of-war, find out how a clock works, and more! My lessons are geared toward 3rd-4th grade level children...

  • Lever and Screw Simple Machines Lesson
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    Lever and Screw Simple Machines Lesson

    by iijuan128 months ago

    This is part 2 of a 6 part hands-on unit on Inventions and Simple Machines. Build and test catapults, lift an adult using a lever, test out screws of various threads, and more! My lessons are geared toward 3rd-4th grade...

  • How does a roller coaster work? - the physics of circular motion
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    How does a roller coaster work? - the physics of circular motion

    by flysky3 years ago

    How come that bodies don't fall circling vertically to the ground? What is the force that overcome its weight? What is the physics behind excitements like a roller coaster trip? The article presents the answer on these...

  • Some Facts About Friction
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    Some Facts About Friction

    by Jamie Lee Hamann6 weeks ago

    Everyday we experience friction, it is necessary for us to walk or for the wheels on vehicles to turn and move. So what is friction? How does it work? Friction is defined as the resistance to motion between...

  • Perpetual Motion Machines in Action
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    Perpetual Motion Machines in Action

    by magnetgenerator5 years ago

    Perpetual motion machines are designed to produce unlimited energy. In other terms it runs for infinite time. But in doing so it violates Laws of Thermodynamics. It has been classified by the law which is being...

  • As Time Goes By - All About Time Keeping and Digital and Analogue Clocks
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    As Time Goes By - All About Time Keeping and Digital and Analogue Clocks

    by Rik Ravado3 years ago

    Everything you wanted to know about clocks. From telling the time, the history of clocks, weird clocks, strange clocks and how they all work.

  • How to Build a Mousetrap Car for Science Class
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    How to Build a Mousetrap Car for Science Class

    by Teresa Coppens3 years ago

    Has one of your kids come home with a science project that has you both stumped? The first time this project came home with my eldest son we spent time scratching our heads and having him research the internet. From...

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