Fill out the following chart to indicate which forces affect the particles along the left. Click on the circle next to Yes if they feel the force and No if they don't. Some of the answers may surprise you, but you can double your bucks if you answer most of them correctly.
Refer to the chart in the other window or the glossary below if you need help. Open the window if you cannot see it.
- A negatively charged particle belonging to the family of leptons. It has mass and combines with the nucleus to make atoms.
- An elusive particle because it barely interacts with other particles. It has zero or very little mass. Scientists are trying to determine if it has mass. It has no electrical charge and belongs to the family of leptons. There are three types of neutrinos: electron neutrinos, tau neutrinos, and mu neutrinos, corresponding to their lepton partners, the electron, tau, and mu.
- A particle with no charge made up of three quarks,one up and two downs. The neutron and proton make up the nucleus of an atom.
- A particle with no mass or electrical charge. Photons are the carriers of the electromagnetic force.
- A particle with positive electrical charge made up of three quarks,two ups and one down. The neutron and proton make up the nucleus of an atom.
- One of the basic building blocks of matter. There are six types of quarks: up, down,charm, beauty, bottom, and top. Three of them combine to make baryons, for example, the proton and neutron. Two combine to make mesons. They have mass and electrical charge.
You can learn more about different particles in
Particle Families and Baryon Bonanza in Law 'n Order.
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Last Update: May 31, 2000