Electrons are wird Video 2

Question 1

Inherent angular momentum (2)

Answer 1

Not caused by them rotating about another object or spinning around or moving along a curved path.

They behave as if they are spinning

Question 2

electrons have either (2)

Answer 2

Spin up or spin down

-Makes it behave as if its spinning either clockwise or anticlockwise

Question 3

Angular momentum

Answer 3

For those of you familiar with angular momentum, it’s just like linear momentum (p = mv), except an object gains angular momentum when it moves along an angular path (e.g. orbiting around a planet, spinning like a top, etc.).

Question 4

Spin ‘n” (2)

Answer 4

n will always be an integer (non fraction can be neg or 0) , a whole number or Half integer (diving integer by 2)

Maximum angular momentum our particle can be found with.

Question 5

Describe the mysteriousness of spin (4)

Answer 5

Particles seem to have this angular momentum were showing no evidence of having any angular motion. The particle just seemed to inherently have this angular momentum as if they were spinning like a top on their axis

They were spinning with particular speeds, no faster and no slower.

This suggested that spin was quantized and can only take specific values.

Yet they can spin in opposite directions.

Question 6

Spin matters when (2)

Answer 6

Fermion interacts with another

Magnetic and/or electric fields

Question 7

Fermions with ex

Answer 7

particles with half-integer spin

electron, proton, or neutron

Question 8

Because vector is either pointing up or down

Answer 8

it is either aligned or antialigned to the direction your measuring

Question 9

Vector position in ms=+1/2+ terminology+greek

Answer 9

Spin up

vector points up

altha

Question 10

Vector position in ms=-1/2 +greek+terminology

Answer 10

Spin down

vector pointing down

beta

Question 11

Spin property is complete useless when you have an electron

Answer 11

on its own

Question 12

Electron spin affects each electron when they are tot because

Answer 12

Their spin affects each other, they influence each other.

Question 13

If an electron see another electron

Answer 13

hey will either align parallel or antiparallel.

Question 14

Align parallel (2)

Answer 14

lowest energy (most stable)

Question 15

Antialigned (2)

Answer 15

Higher energy

But still okay

Question 16

Definition of Spin

Answer 16

An internal state of the particle that exist independently if its position and motion in space

Question 17

Spin coherence

Answer 17

When electrons come close and influence each other, the info of one is locked in. You can take the electrons that were spin aligned and pull them apart metres away they will still align withe eachother.

Question 18

Electrons are particles because (3)

Answer 18

They have mass
They have a fixed charge
They have physical size

Question 19

Electrons are waves because

Answer 19

The pattern that emerges when electrons go through 2 slit screen is the same you get from light