Physics Quiz on Light and Atoms

What does the shape of a shell depend on?

• The number of electrons in the atom

• The number of protons in the atom

• The mass of the atom

• The energy of the atom

Each shade of color has a unique _____ based on a unique distance and energy.

• Wavelength

• Photon

• Frequency

• Energy level

The wavelengths and frequencies of the light emitted by an atom is determined by its ________.

• Proton count

• Neutron configuration

• Electronic structure

• Atomic weight

Lower-energy orbits are ______ to the nucleus.

• Closer

• Further

• Less stable

• More charged

What is the photoelectric effect?

• When light shines on a metal surface and emits photons

• When light shines on a metal surface and electrons are emitted

• When light passes through glass

• When light is absorbed by electrons

What are the characteristics of the photoelectric effect?

• Electrons are emitted immediately when light shines on metal

• The number of emitted electrons increases with light intensity

• High-frequency light emits electrons with greater energy

• Red light cannot cause ejection of electrons from sodium

Light has wave and ______ characteristics.

• Particle

• Energy

• Mass

• Charge

What does a photon's energy depend on?

• Mass

• Charge

• Wavelength

• Speed

An increase in ______ increases the NUMBER of photons.

• Frequency

• Intensity

• Wavelength

• Energy

An increase in ______ increases the ENERGY of photons.

• Intensity

• Wavelength

• Frequency

• Speed