Test #2 Disc of Natural Science
What was the fundamental issue with the early 20th-century model of the atom we discussed that
caused it to be discarded? - Answer -What was the fundamental issue with the early 20th-century model
of the atom we discussed that caused it to be discarded?
Electromagnetic radiation travels in the form of particles with wave properties known as - Answer -
Protons
Electrons
Ions
NONE OF THESE
What is a good analogy to describe the behavior of an electron in a Bohr atom? - Answer -A staircase
Why does the atomic emission spectrum of sodium consist of one yellow line? - Answer -Because only
one type of quantum leap in the atom emits a photon of a wavelength we can see.
An object glows because - Answer -energy is absorbed by the object's atoms, and then they release that
energy as visible light energy when they move back to their ground state.
A gas sample emits red light when a current is passed through it. What elemental gas is likely to be in
the tube? (You may look this up on the internet.) - Answer -Neon
An electron undergoes a quantum leap from energy level 4 to energy level 2. What must be true? -
Answer -The electron released a photon.
, Suppose that the electron in a hydrogen atom is in energy level 3. Which statement is true? - Answer -
The atom is in one of several possible excited states.
An electron undergoes a quantum leap from energy level 1 to energy level 2. What must be true? -
Answer -In order to do this it must have gained the amount of energy represented by the energy gap
between levels 1 and 2.
Electromagnetic waves are generated - Answer -when the velocity of electrons in a wire changes.
A longitudinal wave causes particles of the medium to move - Answer -in the same direction that the
wave is moving.
Which of the following sequences lists electromagnetic waves in order from the least energetic to the
most energetic? - Answer -radio, ultraviolet, gamma
Greenhouse gases - Answer -are responsible for Earth's average temperature being around 59 degrees
Fahrenheit.
Why does coffee in a ceramic mug heat up in a microwave oven? - Answer -Because microwave energy
causes the water molecules in the coffee to increase their motion.
What is the wavelength of a wave that has a velocity of 140 meters/second and a frequency of 350
Hertz? - Answer -0.4 meters
The human ear converts - Answer -sound energy to mechanical energy
Sound waves having a low pitch - Answer -have a long wavelength.
You are able to see the Monmouth University "M" logo as blue because - Answer -the logo absorbs all
wavelengths of visible light except blue wavelengths.
What was the fundamental issue with the early 20th-century model of the atom we discussed that
caused it to be discarded? - Answer -What was the fundamental issue with the early 20th-century model
of the atom we discussed that caused it to be discarded?
Electromagnetic radiation travels in the form of particles with wave properties known as - Answer -
Protons
Electrons
Ions
NONE OF THESE
What is a good analogy to describe the behavior of an electron in a Bohr atom? - Answer -A staircase
Why does the atomic emission spectrum of sodium consist of one yellow line? - Answer -Because only
one type of quantum leap in the atom emits a photon of a wavelength we can see.
An object glows because - Answer -energy is absorbed by the object's atoms, and then they release that
energy as visible light energy when they move back to their ground state.
A gas sample emits red light when a current is passed through it. What elemental gas is likely to be in
the tube? (You may look this up on the internet.) - Answer -Neon
An electron undergoes a quantum leap from energy level 4 to energy level 2. What must be true? -
Answer -The electron released a photon.
, Suppose that the electron in a hydrogen atom is in energy level 3. Which statement is true? - Answer -
The atom is in one of several possible excited states.
An electron undergoes a quantum leap from energy level 1 to energy level 2. What must be true? -
Answer -In order to do this it must have gained the amount of energy represented by the energy gap
between levels 1 and 2.
Electromagnetic waves are generated - Answer -when the velocity of electrons in a wire changes.
A longitudinal wave causes particles of the medium to move - Answer -in the same direction that the
wave is moving.
Which of the following sequences lists electromagnetic waves in order from the least energetic to the
most energetic? - Answer -radio, ultraviolet, gamma
Greenhouse gases - Answer -are responsible for Earth's average temperature being around 59 degrees
Fahrenheit.
Why does coffee in a ceramic mug heat up in a microwave oven? - Answer -Because microwave energy
causes the water molecules in the coffee to increase their motion.
What is the wavelength of a wave that has a velocity of 140 meters/second and a frequency of 350
Hertz? - Answer -0.4 meters
The human ear converts - Answer -sound energy to mechanical energy
Sound waves having a low pitch - Answer -have a long wavelength.
You are able to see the Monmouth University "M" logo as blue because - Answer -the logo absorbs all
wavelengths of visible light except blue wavelengths.
