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Course: AS Physics 9702
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AS Physics 9702

1. Physical quantities and kinematics

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2. Dynamics, forces and pressure

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3. Work, energy, power and deformation

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4. Waves and superposition

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5. Electricity and D.C. circuits

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7. Circular motion and gravitational fields (A Level)

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8. Thermal physics (A Level)

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10. Electric fields and capacitance (A Level)

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11. Magnetic fields and alternating currents (A Level)

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12. Quantum and nuclear physics (A Level)

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13. Medical physics and astronomy (A Level)

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Quiz

AS & A Level Physics 9702 – 12.1 Quantum physics – Quiz

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Quantum AS Physics quiz: free practice for AS Physics 9702. Work through this Quantum AS Physics quiz and get instant feedback on every answer. If you get stuck, review the 12.1 QUANTUM PHYSICS — Notes lesson. More practice: AS Physics 9702 — all units. Syllabus: Cambridge AS & A Level Physics 9702 syllabus.

1.

The energy of a photon of frequency f is

hf
h/f
hf²
f/h
2.

What is the energy of a photon of wavelength 500 nm? (h = 6.63 × 10⁻³⁴ J s, c = 3.00 × 10⁸ m s⁻¹)

4.0 × 10⁻¹⁹ J
1.3 × 10⁻²⁷ J
4.0 × 10⁻²⁸ J
3.3 × 10⁻¹⁹ J
3.

The work function of a metal is

the maximum kinetic energy of a photoelectron
the minimum energy needed to remove an electron from its surface
the energy of the incident photon
the threshold frequency
4.

Increasing the intensity of light of fixed frequency above the threshold frequency

increases the maximum kinetic energy
reduces the work function
stops emission
increases the photoelectric current but not the maximum kinetic energy
5.

The photoelectric effect provides evidence that electromagnetic radiation

is a longitudinal wave
has a particulate nature
has no momentum
travels slower in a vacuum
6.

The de Broglie wavelength of a particle of momentum p is

hp
p/h
h/p²
h/p
7.

The momentum of a photon is

Ec
E/c
E/c²
zero
8.

An emission line spectrum is produced when

electrons absorb photons
a hot solid emits a continuous spectrum
atoms are ionised only
electrons in atoms move from higher to lower energy levels
9.

The electronvolt is a unit of

potential difference
energy
charge
power
10.

Electrons are diffracted by a thin graphite film. If the accelerating p.d. is increased, the diffraction rings

become larger in diameter
become smaller in diameter
stay the same
disappear
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