Save
Busy. Please wait.
Log in with Clever
or

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever
or

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
Your email address is only used to allow you to reset your password. See our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't Know
Remaining cards (0)
Know
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Atomfysik

Spørgsmål til emnet atomfysik

QuestionAnswer
Hvad består et atom af? En kerne med protoner og neutroner Omkring er der skaller med elektroner i.
Hvad kaldes protoner og neutroner? Nukleoner
I virkeligheden er elektronerne ikke i skaller men i en... Elektronsky
Hvad består protoner og neutroner af Kvarker
Hvilke typer kvarker findes der? Up/down top/buttom strange/charm
Hvad betegner Z? Atomnummer - antal protoner i et neutral atom #e=Z
Hvad betegner N? Antal neutroner i et atom
Hvad betegner A? Antal protoner og neutroner
Hvad er elektronens ladning? -e = -1,602*10^-19C
Hvad er det synlige spektrum? ca 360nm-750nm
Hvordan udregner man energien af en foton E_foton = h*f
Hvad er Plancks konstant? 6,63*10^-34J*s eller 4,14*10^-15eV*s
Created by: 639544509532638
Popular Physics sets

 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
Retries:
restart all cards