Physics Principles and Problems 2009

Section 27.2 : Matter Waves

Self-Check Quizzes

1
What did de Broglie propose about particles?
A)that they can exhibit wave properties
B)how to establish their mass
C)that they are in constant motion
D)an equation to determine their position
2
Why is it that you cannot observe the wave properties of everyday objects?
  Need a Hint?
A)Only tiny particles exhibit wave properties.
B)The wavelengths are too short.
C)They don't get diffracted.
D)They travel too slowly.
3
How does shorter-wavelength light or radiation make it easier to determine the exact location of a particle?
A)Shorter wavelengths have higher energy.
B)Shorter wavelengths have fewer photons.
C)Shorter wavelengths decrease diffraction.
D)Shorter wavelengths can fit through a diffraction grating.
4
The Heisenberg uncertainty principle states that it is impossible to measure the _____ and _____ of a particle at the same time.
A)wavelength, frequency
B)mass, velocity
C)position, frequency
D)position, momentum
5
How are the de Broglie wavelength and momentum related?
  Need a Hint?
A)They are directly proportional.
B)They are inversely related.
C)Wavelength is proportional to momentum squared.
D)Momentum is proportional to wavelength squared.
Glencoe Online Learning CenterScience HomeProduct InfoSite MapContact Us

The McGraw-Hill CompaniesGlencoe

Please read our Terms of Use and Privacy Policy before you explore our Web site. To report a technical problem with this Web site, please contact the Web Producer.