Momentum

[Elyssa Smith 4B]

I'm not familiar with momentum. In the Heisenberg equation will we ever have to solve for momentum or will it be given?

[A Raab 1K]

Momentum is the mass of an object times velocity, or p = m * v. So yes, we might have to solve for momentum for Heisenberg's equation.

[Maia_Jackson_2C]

Momentum is also important because some small objects may not have a measurable mass, but they have momentum, so we can still use the equation for them because of momentum.

[Leila_4G]

I still don't understand why delta v is equal to the +/- number attached to the velocity when the velocity is given. It seems like it should be twice the value of the number that is +/-, but my TA told be explicitly that it is not.

[005391550]

we only want the possible variance of the velocity. it does seem like it should be twice the number to cover the range but it's just suppose to be the +/- value, not sure why

[Veronica_Lubera_2A]

Delta V is the uncertainty of its position. So for example, if in the given we have 10 m/s +- 1m/s, the delta V would be 1. It's 1 and not 2 because a particle can't go in two directions at once.

[Shrayes Raman]

Moment or p (not actually p but looks like it!) is a product of mass and velocity. Its possible to encounter a question where this might be asked for. However, from what I have seen the velocity part is more important. That's also what leads to momentum uncertainty.

[Megan_1F]

We most likely will have to calculate momentum to solve for position or wavelength.