Modern Physics

How many quarks make up a proton?

• 1

• 2

• 3

Which type of fundamental force overcomes the repulsive, electrostatic force between protons in the nucleus of an atom?

• the gravitational force

• the weak force

• the strong force

• the magnetic force

What kind of particle has a composition of bđ ?

• a meson

• a boson

• a baryon

• a quark

The total conversion of 1.00 kilogram of the sun’s mass into energy yields

• 9.31 × 10² MeV

• 3.00 × 10⁸ J

• 8.38 × 10¹⁹ MeV

• 9.00 × 10¹⁶ J

Base your answer on information in the table, which shows data about various subatomic particles.

All the particles listed on the table are classified as

• mesons

• hadrons

• antimatter

• leptons

Which graph best represents the relationship between photon energy and photon frequency?

• (1)

• (2)

• (3)

• (4)

The wave-particle duality of light describes light as...

• a wave only
• a particle only
• both a wave and a particle
• neither a wave nor a particle

A particle of light is called a photon.

• True
• False

The photoelectric effect helped to explain how light was light a

• particle

• wave

The slit experiment to observe interference patterns in light proving that light is a

• particle

• wave