AQA A Level Physics 3.2.2.1 The photoelectric effect

• photoelectric effect
• thermionic emission

• bremsstrahlung radiation

• electron capture

Tags

NGSS.HS-PS4-3

A particle of light

• Photoelectron

• Photon

• Proton

• Electron

Tags

NGSS.HS-PS4-3

A particle released by the photoelectric effect

• Photoelectron

• Photon

• Proton

• Electron

The photoelectric effect CANNOT be explained by which of these theories:

• Particle nature of light

• Wave nature of light

• Electron nature of light

• Force nature of light

The wave theory of light predicts that:

• Electrons need a threshold frequency to be released.

• The time it takes for electrons to be released, depends on the intensity of the light.

• Electrons will be released with greater speed, the brighter the light.

• Electrons need a threshold intensity to be released.

The photoelectric effect CAN be explained by which of these theories:

• Particle nature of light

• Wave nature of light

• Electron nature of light

• Force nature of light

Energy of a photon

Tags

NGSS.HS-PS4-1

NGSS.HS-PS4-3

Minimum energy needed for a photoelectron to escape a metal plate

Maximum kinetic energy of a photoelectron

How much energy do electrons at the surface need to escape?