Which of the following is the most powerful fundamental force?

• The weak force

• The strong force

• Electromagnetism

• Gravitation

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What does the strong force primarily do?

• Keeps electrons in orbit

• Holds the atom's nucleus together

• Holds molecules together

• Keeps the universe expanding

What are protons and neutrons collectively known as?

• Leptons

• Hadrons

• Bosons

• Photons

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What are the smaller particles that make up hadrons?

• Gluons

• Quarks

• Neutrinos

• Electrons

What property do quarks have that is described using colors?

• Mass

• Charge

• Spin

• Color

Which particles are responsible for the exchange of the strong force?

• Photons

• Gluons

• Electrons

• Neutrons

What is the rule for the color of quarks in hadrons?

• They must be visible

• They must be colorless

• They must all be the same color

• They must be different shades of blue

How does the color force act on quarks?

• Like a magnetic field

• Like gravity

• Like electromagnetism

• Like rubber bands

Why are quarks never observed floating around by themselves?

• The color force is too weak

• They are too small to detect

• They are always in pairs

• The color force becomes very strong if they stray too far

What is the residual effect of the strong force that holds the nucleus together called?

• Electromagnetic force

• Nuclear force

• Gravitational force

• Weak force