Threshold energy

[Angela_Li_1J]

Are threshold energy and work function the same thing in the equation E (photon) - work function = kinetic energy ? If not, what is threshold energy?

[Emily Engelkemier 1E]

Yes, threshold energy and work function are the same thing!

[Ashley Tonthat 2B]

Hi Angela,

Threshold energy and work function mean the same thing. They basically mean the minimum amount of energy needed to remove/eject an electron. Hope this helps.

[Meia Schram 1J]

Yes they are exactly the same thing in terms that they both represent the lowest amount of energy of a photon to emit an electron from a metal. The reason why they don't use Threshold instead of Work Function when writing it out I think is just a preference thing? I could be wrong and there is some deep scientifical meaning but I'm like 97% sure it's all preference

Hope this helps!

[Joshua Lance Yumul 1F]

I believe so, both threshold energy and work functions are the same! It is just like how we refer to wavelength as lambda or wavelength.

[Nicole 3G]

Yes, threshold energy and work function are the same thing. They both measure how much is needed to get the electron to get "out" of the metal surface (not including the kinetic energy after it is emitted though).

[Ashley Presnell 1C]

In the equation we were given, the work function and threshold energy both represent the same thing in terms of energy necessary to excite an electron enough for it to eject the electron.

[Monse Mata 3D]

Hey Angela! You're correct, threshold energy and work function basically mean the same thing.

[Divya Mehta 2K]

Hi Angela! Yes threshold energy and work function are essentially synonyms for the same thing, which is the lowest amount of energy required to excite an electron enough to eject it from a metal

[Jane Wang 1E]

Yes, the threshold energy and the work function energy is the same, they are the less amount energy that a metal surface need to emit an electron.

[Madison Rhynhart 3H]

Yes! Threshold energy and the work function are the same thing they just indicate the minimum amount of energy needed to eject the electron from a metal.

[Ivy Vo Dis 1C]

Threshold energy and work function have the same definition. They are both the minimum amount of energy that is needed to eject an electron out from the surface of a piece of metal.

[Kayla Arellano 1K]

Are threshold energy and work function the same thing in the equation E (photon) - work function = kinetic energy ? If not, what is threshold energy?

Yes, you are correct that threshold energy and work function are the same thing. They both describe the energy that is required to remove and electron.

[Nick Oscarson 1K]

Yes, in this equation threshold energy and the work function are synonymous. They essentially mean the amount of energy that it takes to eject an electron.

[Matt Vargo 2D]

Yes, work function and threshold energy are synonymous with each other. In the case of the photoelectric effect, the work function/threshold energy is the amount of energy that is required to eject an electron off of a metal's surface.

[Mahima Manoj 1F]

Hii,
As the other respondents have said, they are referring to the same thing!

[Madelyn_Rios_2c]

Threshold energy and work function are the same thing. They represent the minimum amount of energy needed to eject an electron.

[Amanda Dankberg 1B]

Yes, threshold energy and the work function are the same thing :)

[Nishan Reddy 3K]

Yes, they both refer to the minimum amount of energy required to completely take the electron out of the quantized energy levels of an atom.

[Mia Orr 3B]

Yes, you are correct! In the equation E(photon) - work function = kinetic energy, the terms work function and threshold energy are interchangeable, as they both refer to the minimum amount of energy required to remove an electron.

[Jocelyn Chin 1K]

They're the same thing! I think threshold is easier to visualize in my head though. Work function may refer to the term work from physics, which is also in joules.

[Ben Broselle 3 I]

both are the minimum amounts of energy to eject an electron, so they are the same.

[405479701]

They both are the minimum amount of energy to remove an electron, so yes, they are the same.

[Luke Hatch 1G]

Threshold energy and Work function are synonymous. Both are representations of the amount of energy needed to remove electrons from an atom. They are used in different calculations with different wavelength variables, so the distinction between threshold energy and work function is just within the context of the equations you are using.

[sidneypalacios]

Yes they are the same thing

[505807269]

yes, threshold energy and work function mean the same thing. They both represent the lowest amount of energy needed to excite the electron to eject the electron.

[Jennifer Kainth 3L]

Yes, you are correct! They are the same.

[Violet Mbela 2B]

Hey all,
So do we have to do any conversions for the two thresholds, or are they in the same units?

[Rhea Jain 2I]

Yes, threshold energy and work function are the same thing.

[505749458]

Yep, they're the same thing. It confused me at first too because the work function is just one value instead of a function like I would expect it to be. Does anyone know why the work function is called a function?

[105605391]

Yes threshold energy and the work function (phi) are the same variables in the E(photon) - E(energy removed) = E(excess function), where energy removed is the work function.

[Anubhav_Chandla1G]

Threshold energy and work function are the same thing. Threshold energy is the energy required to eject an electron from the atom.

[almaortega]

Sometimes, threshold energy and kinetic energy are not the same! Threshold energy is always represented as phi and this is the minimum amount of energy needed to eject electrons. Kinetic Energy of e- are usually the actual amount of energy that an e- has.

[Amy Shimizu 1J]

Yes, they are the same thing! The work function is the threshold energy, meaning how much energy is required for an electron to be emitted.

[Emily Widjaja 3A]

yes, they are the same. usually its threshold frequency through, not threshold energy.

[Alice Weber 3I]

Hi! As other people have said, it is the same thing.

[Crystal Ma 2J]

Yes! Threshold energy and work function are the same thing!

[Eric Sun 2G]

Threshold energy and work function are the same.

[dahlia Faruque]

Hi, yes both threshold energy and the work function are the same things

[haryn Shin 1H]

Yes, threshold energy and the work function mean the same thing when calculating with the equation.

[Natalie Quilala 1I]

Threshold energy is the same as work function. They both indicate the minimum amount of energy required for an electron to be ejected from a metal plate.

[Abhinav Amanaganti 3K]

Threshold energy and work function represent the same thing: the amount of energy that is required for a photon to eject e- from a metal surface. Work function is used in the equation relating kinetic energy of emitted electrons and energy of incoming photon but you can also substitute threshold energy for the value of work function.

[605607825]

Hello!
Like previously mentioned, the work function and threshold energy are pretty much the same! The work function however refers to the energy that must be inputted whereas the threshold energy is referring to the energy required for the frequency needed to eject and electron. When calculating to find their values, it will essentially be the same! I hope this helps!