Question 1

Light is considered a(an)

Accepted Answer

Light is considered an electromagnetic wave because it is an oscillation of electric and magnetic fields that propagates through space.

Question 2

Light acts as a wave or particle. Its particle name is _________.

Accepted Answer

Light's particle nature is represented by photons, which are the basic units or quanta of light and all other forms of electromagnetic radiation.

Question 3

The electron in the smallest orbit is in the _________.

Accepted Answer

The electron in the smallest orbit is in the ground state, which is the lowest energy state of an atom.

Question 4

The brightness of a light is determined by an inverse square law with distance. This means essentially that

Accepted Answer

The inverse square law states that the intensity (or brightness) of light decreases as the square of the distance from the source increases. Therefore, as the distance increases, the brightness decreases at a greater rate.

Question 5

___________ indicates the number of protons an atom has.

Accepted Answer

The answer of ___________ indicates the number of protons an...

Question 6

_____________ occurs when the electron goes from the higher state to the lower state.

Accepted Answer

The answer of _____________ occurs when the electron goes from...

Question 7

Brightness of an object is proportional to the inverse of distance squared.

Accepted Answer

The brightness of an object follows the inverse square law, meaning it decreases proportionally to the square of the distance from the source. If the distance is doubled, the brightness becomes one-fourth, illustrating the inverse square relationship.

Question 8

The identification of star types is done by examining their absorption spectra.

Accepted Answer

The identification of star types is primarily based on analyzing their absorption spectra, which reveals the presence of specific elements and compounds in the star's atmosphere, thus allowing astronomers to classify stars into different types.

Quiz 21: The Dual Nature of Light and Matter