Curriculum
Course: AS Physics 9702
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Curriculum

AS Physics 9702

1. Physical quantities and kinematics

0/41 Dr Dabour Hub Science Diagram and Course Material

2. Dynamics, forces and pressure

0/46 Dr Dabour Hub Science Diagram and Course Material

3. Work, energy, power and deformation

0/31 Dr Dabour Hub Science Diagram and Course Material

4. Waves and superposition

0/39 Dr Dabour Hub Science Diagram and Course Material

5. Electricity and D.C. circuits

0/49 Dr Dabour Hub Science Diagram and Course Material

7. Circular motion and gravitational fields (A Level)

0/25 Dr Dabour Hub Science Diagram and Course Material

8. Thermal physics (A Level)

0/37 Dr Dabour Hub Science Diagram and Course Material

10. Electric fields and capacitance (A Level)

0/36 Dr Dabour Hub Science Diagram and Course Material

11. Magnetic fields and alternating currents (A Level)

0/46 Dr Dabour Hub Science Diagram and Course Material

12. Quantum and nuclear physics (A Level)

0/44 Dr Dabour Hub Science Diagram and Course Material

13. Medical physics and astronomy (A Level)

0/42 Dr Dabour Hub Science Diagram and Course Material
Quiz

22.3.2 The de Broglie Wavelength – Check yourself

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1.
The de Broglie wavelength of a particle of mass m and speed v is
hmv
mv/h
h/(mv)
h v/m
2.
The speed of an electron is doubled. Its de Broglie wavelength
is halved
doubles
quadruples
is unchanged
3.
An electron has momentum 4.0 × 10−24 kg m s−1. What is its wavelength? (h = 6.63 × 10−34 J s)
2.7 × 10−57 m
6.0 × 10−11 m
1.7 × 1010 m
1.7 × 10−10 m
4.
The accelerating voltage on an electron beam is increased by a factor of 4. The wavelength changes by a factor of
4
1/2
2
1/4
5.
Which graph is a straight line through the origin for electrons accelerated through voltage V?
λ against 1/√V
λ against V
λ against √V
λ against V2
6.
Why does a moving tennis ball not show observable diffraction?
It has no wavelength
It travels too slowly
Its wavelength is far smaller than any gap it could pass through
It carries no momentum
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