Many Physic Principles Well Illustrated By These Experiment Designs.
A very scientific design using physic principles to illustrate potential energy, kinetic energy, lever system,electronic gadzet and etc--to produce work output. it may seem a bit absurd ,might be using a bit camera trick to cover up the effiency of the machine system. Nevertheless it is very excellent and unique, seemingly real and workable by established principles in physicsDont' miss. Check-In ==>XXXXX . Remember to come back here to the blog.
蛇擺 Physics: The Simple Pendulum Pendulum Project Pendulum蛇擺 Ballistic Pendulum VideoA classic physics lab with an impressive military history, the ballistics pendulum was invented in 1742 to measure the speed of bullets. It was later discovered that by knowing the weight of the pendulum, the weight of the shot fired and the distance the pendulum moved when struck, you then can calculate the velocity of the shot. Lead students in recreating this experiment to demonstrate conservation of energy, conservation of momentum and projectile motion. The pendulum consists of a spring gun, a ball that can be launched horizontally and a block to catch the ball. The pendulum swings to a maximum height where it is stopped. By measuring this height and using conservation of mechanical energy students can deduce the kinetic energy of the pendulum plus projectile immediately after they collide. A scale and pointer indicate the highest arc of the swing for accurate measurements every time. Includes instructions. http://www.cencophysics.com/ballistic...
Topic :Understanding The Relation: ENERGY and WORK (which is affected by FRICTION,GRAVITATION.) Part 1: Introduction: Energy, Law of Conservation Of Energy ENERGY!!!This is a video made for an Educational Media class on kinetic and potential energy. The Law of Conservation of EnergyIn physics, the law of conservation of energy states that the total amount of energy in any isolated system remains constant but cannot be recreated, although it may change forms, e.g. friction turns kinetic energy into thermal energy. In thermodynamics, the first law of thermodynamics is a statement of the conservation of energy for thermodynamic systems, and is the more encompassing version of the conservation of energy. In short, the law of conservation of energy states that energy can not be created or destroyed, it can only be changed from one form to another or transferred from one body to another, but the total amount of energy remains constant (the same). POTENTIAL ENERGY=KINETIC ENERGY [ But factors of friction or gravitation must be considered] Moment of Inertia & Converting Potential Energy to Kinetic E
Part 2(A) What’s Potential Energy Potential Energy is energy associated with height, kept in battery, spring in restrained state. Physic: Potential Energy: PE=mgh. The energy stored by moving a mass to a height above the surface of the earth, which turns into Kinetic Energy when dropped due to the force of Gravity.That's all well and good, but can you BREAK STUFF with it? SURE! At Slightly-Mad Science, we love breaking stuff! Potential Energy
Energy - Gravitational Potential Energy
Part 2(B) What’s Kinetic Energy Kinetic Energy is energy associated with movement Conserve your frustration-energy and let us help you understand. Learn about kinetic energy, joules, the conservation of energy, and the work-kinetic energy principle . Potential and Kinetic Energy Mechanical Energy - Kinetic and PotentialA brief basic explanation about mechanical energy, potential energy and kinetic energy. the derivation of the formula and drill work. Stay tuned! Part 3 Illustration of Potential Energy=Kinetic Energy In theory if there is no friction or gravity or any external force (energy) acting on an object; the object either remain at inertial(stationary) or moving uniformly NON-STOP[Newton’s first and second law]. This is NEWTON’s LAW ON MOTION, but then it is still related to Thermodynamic THE LAW OF HEAT which establish this topic of POTENTIAL ENERGY=KINETIC ENERGY at the beginning of this study All in all , energy cannot be lost or created,it can only be transformed (as into light,heat,movement,sound…). THIS IS THE ZIST OF LAW OF CONSERVATION OF ENERGY. If energy cann’t be created, then how it comes into being? To me there’s a creator of universe! Introduction to work and energy Introduction to frictionCorrection of definition of "normal force" and an introduction to the coefficient of friction. Friction on an inclined plane
Work/Energy problem with Friction Kinetic and Potential Energy Take a clock as an example:
(1)Battery=potential energy in the chemical-àHandle moves=kinetic energy,the WORK--- .[ 2 stages] (2)If the clock/watch belonging to non-battery operated: The winding up(kinetic energy)THE WORK=Spring tighten up(potential energy)=the handle moves at each second(kinetic energy THE WORK )----[3 stages] (3)Just a joke: When someone gets angry(potential energy) until cann’t bear it then blowing on somebody(kinetic energy).
First thing first: Differentiate the 2 types of LENSES and 2 tyese of MIRRORS(exlusive of PLANE mirror), and the type of images: REAL(can be caught on screen, size of image smaller and INVERTED eg. image fall on camera flilm) and VIRTUAL(image BIGGER and NOT INVERTTED--eg. MANIFYING GLASS), whether it is REFRACTIion or REFLECTION .Every lense has a focal lense, and their uses in every day life(eg.cameras,projectors,microscopes and telescopes,they use different types of lenses in certain fix combination). Always learn the relevent law or definition in physic, check and understand every element in the definition/law; then look for experiment ,application and do some exercises to make sure you can do in examinatuion. This is the proper way of learning science and any study! Always start with the basic though sometime may appear childish but it is fundamentally importance for further advancement in any study. Even though you could be very well versed in the topic(even as a PROFESSOR), ponder over it how could it be relatated to other topics or other subjects .Wish you the best in study in my blogS(I myself is doing the studying by learning more and more indept from each topic in ALL my blogs). Oh yes, please bookmark and share with your friends,teachers,and parents I would be very happy if you learn something in my blogs, this is my ONLY OBJECTIVE for "WASTING MY RESOURSES" here, afterall what can I get from anyone reading it/them!
Concave and Convex lens 凹透鏡與凸透鏡物理實驗趣味短片 光學 Optics Concave and Convex mirror 凹鏡與凸鏡物理實驗趣味短片 光學 Optics Optics - difraction and reflectionThis is an example (using optics) showing with ray traces what happens when energy (acoustic for example) reaches an interface. This is one of the most important principles of Seismic method . Concave and Convex mirrors
Mirage maker - concave mirrors
PARABOLIC MIRROR PARABOLOID CONCAVE SOLAR CONCENTRATORThis is an acrylic mirror I helped design and I am trying to get more. They are fantastic and this parabolic mirror boils 12 oz of water in 90 seconds. http://www.greenpowerscienc...
Law of Reflection Laws of reflection Reflection in a plane miror (1)easy way (an exam cheat) to construct a ray diagram for reflection in a plane mirror. When you have viewed it look at the second video - it shows you how to construct a more complicated image. Reflection in a plane mirror (2)This vidclip shows how to construct a ray diagram that illustrates that the virtual image formed in a plane mirror is erect, the same size as the image and laterally inverted - you need to view video 1 in this series in order to construct the image quickly - it tells you how to cheat! Refraction of Light
Physics with Mr. Noon: Refraction Simulation This activity uses interactive computer simulations to help demonstrate the reflection and refraction of light. You can find this activity and more like it at www.sciencewithmrnoon.com LMT Physics 1 - Refraction Lab
How a Rainbow WorksRainbows are pretty, but are they things? This video clarifies all. Made with QlipBoard, free from http://www.qlipmedia.com/
Focal Length Lab
The Focal Length of a Concave MirrorWe found an approximate value for the focal length of a concave mirror. Then we used a raybox, cross hairs and screen to get a more precise value.
How to Figure Friggin Focal Length and f Stop Thingies
Nuclear Power - How it Works How a nuclear generating station works. www.opg.gom Wave power: how it works
Combined Heat & Power: how it works
http://www.greenpeace.org.u... CHP is the heart of an efficient, decentralised energy system. It's the most efficient way possible to burn fuel because so little energy is lost as waste heat. That...
Tidal power: how it works http://wwww.greenpeace.org.uk/efficie...
Another little flash animation taken from EfficienCity, a virtual demonstration of how real world communities around the UK can use renewable and energy efficient systems to enjoy lower greenhouse gas emissions, cheaper electricity and heating bills, and a more secure energy supply. Micro hydro: how it worksobject width="425" height="344">
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http://www.netsense.net/tesla/
The life story and work of Nikola Tesla. He invented AC electricity, Neon Lights, Radio transmission, The Electric motor, Wireless electricity transfer, Remote control, Hydraulics, Lasers, Space weapons, Robotics, and many, many more things.
As Tesla claimed to have invented a way to harness free energy from the voltage difference in the ionosphere that causes lighning, he was seen as a threat to the world energy economy and most of his inventions were classified for national securtiy by the US govenment.
A lot of his discoveries in physics have not been released to the public, depsite being invented nearly 100 years ago. Other technologies not yet released to the public include HAARP Elecromagnetic technology and high energy directed particle beams used in space weapons.
Some Electromechanical devices and principles developed by Tesla:
* various devices that use rotating magnetic fields (1882)
* induction motor and high frequency alternator
* means for increasing the intensity of electrical oscillations
* alternating current long-distance electrical transmission system (1888)
* Tesla coil
* bladeless turbine
* bifilar coil
* Telegeodynamics
* systems for wireless communication (prior art for the invention of radio) and radio frequency oscillators
* robotics and the "AND" logic gate
* X-rays Tubes using the bremsstrahlung process
* devices for ionized gases
* devices for high field emission
* devices for charged particle beams
* methods for providing extremely low level of resistance to the passage of electrical current
* voltage multiplication circuitry
* devices for high voltage discharges
* devices for lightning protection
* Magnifying Transmitter
* VTOL aircraft
* Dynamic theory of gravity
* concepts for electric vehicles
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Introduction to mechanical advantage
Mechanical Advantage – Pulleys
Download/DVD: http://hilaroad.com/video/
This video uses working simple machines to demonstrate how to calculate mechanical advantage. Suitable for any school program involving simple machines. Demonstrates pulley systems including a chain block.
Moving pulley problem (part 1)
Measuring acceleration due to gravity using a freefall apparatus
Investigating Joule's LawA Leaving Certificate Physics mandatory experiment. We passed a current through a fixed mass of water for a fixed time. Then we graphed the change in temperature of the water against the square of the current.
To Demonstrate Part One of Newton's First Law of MotionA non-Mandatory Leaving Certificate Physics Experiment. A large sheet of paper persists in a state of rest without tearing!
Three Laws of MotionHow many laws are there in Newton's Three Laws of Motion? If you can't answer that, you'd better watch this.
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