Fundamental Forces and Feynman Diagrams Quiz

Which of the following is the strongest fundamental force?

• Gravitational

• Strong Nuclear

• Weak Nuclear

• Electromagnetic

What is the role of exchange particles in fundamental forces?

• They destroy particles.

• They create new particles.

• They have no role in particle interactions.

• They mediate interactions between particles.

In a Feynman diagram, what does the vertical axis typically represent?

• Mass

• Energy

• Time

• Space

How are photons represented in Feynman diagrams?

• As spiral lines

• As dotted lines

• As straight lines

• As squiggly lines

What type of line is used to represent gluons in Feynman diagrams?

• Straight line

• Dotted line

• Squiggly line

• Twisty spring-like line

In Feynman diagrams, how do anti-particles travel?

• Sideways in time

• They do not travel

• Forward in time

• Backward in time

What happens when an electron and a positron interact?

• They annihilate each other.

• They form a new particle.

• They remain unchanged.

• They repel each other.

What must be conserved at each junction in a Feynman diagram?

• Mass, energy, and speed

• Charge, lepton number, and baryon number

• Distance, time, and velocity

• Temperature, pressure, and volume

How should bosons be drawn in Feynman diagrams to indicate their movement through time?

• At an angle

• Horizontally

• In a circle

• Vertically

Which exchange particle is theorized to travel at the speed of light?

• Photon

• W boson

• Gluon

• Graviton