Particle Physics

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Photoelectric effect
The phenomenon where light causes electrons to escape from the surface of a metal.
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Wave particle duality
The idea that waves and particles can both display wave like behaviour and particle like behaviour
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Electron diffraction
The phenomenon that demonstrates the wave nature of electrons
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Ground State
The lowest energy state in an atom
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Deflection by magnetic/electric field
The phenomenon that demonstrates the particle nature of electrons
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Excitation
The process where an electron in an atom gains energy and moves up to a higher energy level
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Visible Light
The type of light given off when atoms in the coating on a fluorescent tube de-excite
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Thresh hold frequency
The minimum frequency of light that will cause electrons to escape from the surface of a metal
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De-excitation
The Process where an electron in an atom losses energy by emitting a photon and drops down to a lower energy level
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Work function
The minimum amount of energy required for an electron to escape from the surface of a metal
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Light diffraction
The phenomenon that demonstrates the wave nature of light
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Ionisation energy
The amount of energy required for an electron to escape from an atom
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Photons
Particles or packets of light energy each with an energy E=hf
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UV Light
The type of light given off when mercury atoms de-excite
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Photoelectric effect (2)
The phenomenon that demonstrates the particle nature of light
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Ionisation
The process where an electron in an atom gains enough energy to escape from the atom
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Other cards in this set

Card 2

Front

The idea that waves and particles can both display wave like behaviour and particle like behaviour

Back

Wave particle duality

Card 3

Front

The phenomenon that demonstrates the wave nature of electrons

Back

Preview of the back of card 3

Card 4

Front

The lowest energy state in an atom

Back

Preview of the back of card 4

Card 5

Front

The phenomenon that demonstrates the particle nature of electrons

Back

Preview of the back of card 5
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Comments

George Francis

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QUESTION 6

Congratulations. Come up here and claim your winnings

-"Speech!" said one spectator

iska

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wtf was that?

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