Physics Principles and Problems 2009

Section 26.1 : Interactions of Electric and Magnetic Fields and Matter

Self-Check Quizzes

1
What could Thomson calculate from his experiments that enabled him to determine the mass of an electron?
  Need a Hint?
A)acceleration of an electron beam
B)charge-to-mass ratio of an electron
C)the charge of an electron
D)the force of a magnetic field on an electron
2
Why did Thomson put hydrogen gas in his tube to determine the mass of a proton?
A)Hydrogen deflects the electric field in a predictable way.
B)The hydrogen atoms deflect electrons.
C)Hydrogen atoms, stripped of electrons, are protons.
D)Hydrogen gas is not affected by the magnetic field.
3
Why are mass spectrometers so useful in environmental and forensic science?
A)They do not require energy input to operate.
B)They are lightweight and portable.
C)They are not expensive.
D)They are very sensitive.
4
Why are isotopes of an atom able to be separated by a mass spectrometer?
A)Isotopes have different masses.
B)A mass spectrometers acts like a centrifuge.
C)Naturally occurring isotopes have different magnetic properties.
D)Isotopes are positively charges.
5
Which is not an application of a mass spectrometer?
A)determine the energy required to strip an atom of its electrons
B)separate a sample of an element into its isotopes
C)determine the relative abundance of each isotope of a sample
D)identify trace amounts of an element in a sample
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.