https://padlet.com/ludovica1099/c1r3u7uvuo13 CLIL MODULE PLAN en-us 2016-12-18 16:25:49 UTC 2024-05-16 20:23:35 UTC hello@padlet.com http://carta-bianca.max.gazzetta.it/files/2012/09/einstein3.jpg ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144327482 At rest: when the position of a body with respect to its sorroundings doesn't change with time it is said to be at rest.
In motion: if the position of an object is changing,it's "in motion"]]> 2016-12-19 15:26:49 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144327482 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144368659 An object will continue to remain at rest unless acted upon by an external 
unbalanced force. 
This is the first law of dynamics; it was understood by Galileo Galilei that described it in 1632 and then it was 
enunciated by Newton in 1687. The law also states that an object will stay in a state of constant 
velocity, called uniform motion, in the absence of an unbalanced force. 
It means if there was no frictional or any other force the body would never stop.]]> 2016-12-19 18:39:13 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144368659 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144371517 2016-12-19 18:52:07 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144371517 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144371914

Dilatation: The act of expanding 

Contraction: The act of contracting

Reference frame: A set of coordinate axes in terms of which position or movement may be specified 

Inertial frame: A reference system where the Newton's1st law is valid 

Galilean trasformation of coordinates: Relation between the coordinates of an event as observed from two inertial references frame

Medium: An intervening substance through which something is transmitted or carried on 

• Ether: An all-pervading infinitely elastic,massless medium 
  
  
• Vacuum: Absence of matter 
  
  
• Simultaneity: Happening at the same time
  
  
• Elementary particle: Any of the subatomic particle that compose matter and energy 
  
  
• Rest frame: The coordinate system in which the particle is at rest 
• Stationary: A time-invariant quantity, such as a constant position of temperature

]]> 2016-12-19 18:54:19 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144371914 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144374144 2016-12-19 19:04:18 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144374144 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144374818 1) The Newtonian dynamics appeared to have definitively solved the question of describing motion and 
2) In classical machanics speed is not absolute but always relative to a reference frame

3) If a law of mechanics is valid in a reference frame K, it must be valid in all reference frames K’

moving with uniform linear motion in relation to k.

4) Galilean law for the addition of velocities is also valid.

5) Maxwell developed the theory of electromagnetism around 1870.

6) In electromagnetism the speed of light in a vacuum is constant

7) This is the fundamental postulate of special relativity, called invariance of the speed of light.]]> 2016-12-19 19:07:30 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144374818 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144376919 2016-12-19 19:17:29 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144376919 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144377104
Peraphs a privileged reference frame exists, it was called by Aristotele “ether” and the M-M experiment
had the aim to demonstrate the ether existence. ]]> 2016-12-19 19:18:10 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144377104 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144378606 The ether
• What the Ether is?
The Ether is an invisible massless nothing, it’s very rarefied and highly elastic substance formerly believed to permeate all spaces, including the interstice between the particles of matter. Maxwell believed electromagnetic waves, such as light, to be vibration in the ether. Its only physical property is that it allows light propagate through.
• Why Ether was introduced?
If a sound wave travels through air, light waves must travel through a medium as well. As the sound requires air, so the light requires the ether to move from a lace to another.
• When?
When the measure of speed of light (c) became possible, testing the predicted effect of the ether on c became possible too.
• Who?
In 1887 Michelson an Morley conduct an experiment and they needed an experimental precision never had before. The idea was: the Earth orbits around the Sun at a speed of 30 km/s and it moves inside the ether, so the speed of light has to be different when the Earth moves in the same direction of the light in the ether or in a transverse direction (i.e. perpendicular to it).
• Their results.
Their results were inconsistent with the existence of the ether, but they were consistent with the point of view of Einstein. This is the beginning of modern physics.

]]> 2016-12-19 19:26:34 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144378606 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144379281 ----------------------------------->]]> 2016-12-19 19:30:21 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144379281 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144379892 Answer: The Michelson-Morley experiment was an attempt to measure the motion of the Earth through the luminous ether. Though often called the Michelson-Morley experiment, the phrase actually refers to a series of experiments carried out by Albert Michelson in 1881 and then again (with better equipment) at Case Western University in 1887 along with chemist Edward Morley. Although the ultimate result was negative, the experiment key is that it opened the door for an alternative explanation for the strange wave-like behaviour of light.

]]> 2016-12-19 19:33:46 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144379892 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144382398 2016-12-19 19:48:33 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144382398 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144382796 2016-12-19 19:50:47 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144382796 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144383295 2016-12-19 19:53:54 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144383295 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144383354 2016-12-19 19:54:17 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144383354 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144383638 2016-12-19 19:56:02 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144383638 ludovica1099 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144383999 Il padlet è in continuo aggiornamento...]]> 2016-12-19 19:58:22 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144383999 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144539080 2016-12-20 23:40:00 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/144539080 https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/145184297 Very very good.
You wrote an excellent article; good idea that one of put some notes on the sidelines.]]> 2017-01-03 23:06:25 UTC https://padlet.com/ludovica1099/c1r3u7uvuo13/wish/145184297