Marina Emilio – Physics.CLIL https://online.scuola.zanichelli.it/physics-clil Risorse online per i testi Zanichelli Tue, 24 Aug 2021 12:56:21 +0000 it-IT hourly 1 https://wordpress.org/?v=4.9.16 Risorse digitali https://online.scuola.zanichelli.it/physics-clil/xteachx-risorse-digitali/ Tue, 24 Aug 2021 12:56:21 +0000 https://online.scuola.zanichelli.it/physics-clil/?page_id=52 Formulae – audio https://online.scuola.zanichelli.it/physics-clil/formulae-audio/ https://online.scuola.zanichelli.it/physics-clil/formulae-audio/#respond Tue, 01 Sep 2015 14:30:22 +0000 https://online.scuola.zanichelli.it/physics-clil/ Newton’s second law
of motion
F=ma

Force equals mass multiplied by acceleration.

 

  Linear momentum
p=mv

The linear momentum of a body equals the product of the mass of a body and its velocity.

 

  Coulomb’s law
F=k0 q1q2/r2

The electrostatic force acting simultaneously between two point charges is equal to the product of the proportionality constant k0, the charges q1 and q2, and the reciprocal of the square of the separation distance r of the point charges.

 

Ascolta l'audio Electric potential
energy
U=1/(4πε) q1q2/r

The electric or electrostatic potential energy of charge q1 in the potential of charge q2 is equal to the product of the reciprocal of four pi multiplied by the permittivity ε of the medium, the charges q1 and q2, and the reciprocal of the separation distance r of the point charges.

 

Ascolta l'audio Energy of a photon
E=hf

The energy of a photon is equal to the product of the Planck’s constant h and the frequency f of its associated electromagnetic wave.

 

Ascolta l'audio Momentum of a photon
p=h/λ=E/c

The momentum of a photon is equal to the ratio of the Planck’s constant h to the wavelength m of its associated electromagnetic wave, or the ratio of its energy E to the speed of light.

 

Ascolta l'audio Heisenberg uncertainty
principle
x)(Δpx)=h/(4π)

In describing an elementary particle, the uncertainty in the position (Δx) multiplied by the uncertainty in its momentum (Δpx) is equal to Planck’s constant divided by four pi.

 

Ascolta l'audio Rest energy
E0=m0c2

The total energy of a body at rest is equal to the product of its rest mass m0 (also called invariant mass) and the square of the speed of mass.

 

Ascolta l'audio Radioactive decay N=N0et

For a given sample of a specific radioisotope, the number of atoms present after a period of time t is equal to the initial number of atoms N0 (at time t = 0) multiplied by the exponential function of –λt, where λ is the decay constant for the radioisotope and t is the elapsed time.

 

Ascolta l'audio Half-life

T1/2=(ln2)/λ
 

The half-life of a substance undergoing decay, i.e. the period of time in which the expected number of entities that have decayed is equal to half the original number, is equal to the natural logarithm of two divided by the decay constant λ for the substance; λ being a positive number.

 

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Home https://online.scuola.zanichelli.it/physics-clil/ https://online.scuola.zanichelli.it/physics-clil/#respond Thu, 09 Dec 2010 14:10:29 +0000 https://online.scuola.zanichelli.it/minisito-base/?page_id=2 Physics.CLIL è un libro per imparare la fisica in inglese con il CLIL (Content and Language Integrated Learning): svilupperai competenze disciplinari e linguistiche, e parteciperai in modo attivo alla lezione, divertendoti.

 

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