Modern Physics SEHS

A wave with a long wavelength will have a ______ frequency and _____ energy

• high, low

• high, high

• low, high

• low, low

Tags

NGSS.HS-PS4-1

A particle of light is called a...

• Photoelectron

• Photon

• Proton

• Electron

Tags

NGSS.HS-PS4-3

The only way to increase the number of photoelectrons emitted is by increasing the _________ of the light

• Intensity

• Wavelength

• Frequency

• Energy

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-4

The photoelectric effect only occurs if the light shining on the metal is:

• coherent.
• above a minimum intensity.
• above a minimum frequency.
• above a minimum wavelength.

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

Which position represents the highest energy state?

• 1

• 2

• 3

• 4

Tags

NGSS.HS-PS1-4

The electron moves from position 1 to 2. How does the state of the electron shift during this reaction?

• The electron becomes less excited.

• The electron returns to the ground state.

• The electron becomes more excited.

• Light is emitted

Tags

NGSS.HS-PS1-2

NGSS.HS-PS1-4

The photoelectric effect is when:

• Electrons collide inside a metal to release photons.
• One incident metal electron releases one photon.
• One incident photon releases one electron from a metal.
• Photons are absorbed in to metal ions releasing electrons.

Tags

NGSS.HS-PS4-3

NGSS.HS-PS4-4

The photoelectric effect helps us to understand

• the particle nature of light.
• diffraction pattern produced as light passes through a single slit.
• the wave behavior of light.
• spectroscopes.

Tags

NGSS.HS-PS4-3

The _____________ determines the identity of an object.

• # of Protons
• # of Electrons
• # of Neutrons
• Atomic Mass

Schrodinger's cat experiment tested

• the probability of quantum tunneling
• Bohr's atomic model
• whether a quantum system could exist in multiple states
• radioactive decay in Plutonium