Busy. Please wait.
Log in with Clever

show password
Forgot Password?

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

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.
Didn't know it?
click below
Knew it?
click below
Don't Know
Remaining cards (0)
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

Physics Ch. 19

Physics Quiz Chapter 19

What is one of the great mysteries of our universe? The inequality of matter and anti-matter
What are the two basic kinds of particles? Fermions and Bosons
What is a fermion? The basic building block of all matter that can be easily created (has to be in pairs)
What is a boson? A particle that has to be created alone; it conveys forces.
What makes up protons and neutrons? Quarks
What types of charges do quarks have? Fractional charges
What are other primary particles other than fermions, bosons, and quarks called? Leptons
What is color (in terms of quarks)? The ability to emit and absorb gluons
What are the three allowed types of combinations for quarks? Meson (anti color + normal color), Baryon (Red + Green +Blue), or an Antibaryon (Anti-red + Anti-Green + Anti-Blue)
What are the four main "fields"? Gravity, Weak Nuclear, Electromagnetic, and Strong Nuclear
What is the Planck Length? The smallest possible size of anything (1.6×10^-35 meters)
What is the Quantum Foam? The "stuff" that was always there
What is the strongest of the four fundamental forces? The Strong Nuclear Force
What are particles with the same mass but the opposite charge called? Anti-particles
Which particles are thought to be responsible for rest mass? The Higgs Boson
What are a combinations of two quarks called? Mesons
What are the four basic fermions that make up the matter around you called? Up Quarks, Down Quarks, Electrons, and Electron Neutrinos
Created by: stonely
Popular Physics sets




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:
restart all cards