Chapter 32 Electrostatics #1 Question Preview (ID: 6370)


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Atomic nuclei of almost all elements consist of
a) protons and neutrons
b) protons and electrons
c) electrons and neutrons
d) none of the choices

Two charges are separated by a certain distance. If the magnitude of each charge is doubled, the force on each charge is
a) quadrupled
b) halved
c) doubled
d) tripled

The net charge of a neutral atom
a) is zero
b) depends only on the number of electrons it has
c) depends only on the number of protons it has
d) usually cannot be determined

Bring a charged object near a conductor and then momentarily touch the conductor. This demonstrates charge by
a) induction
b) polarization
c) deduction
d) friction

A difference between electrical forces and gravitational forces is that electrical forces include
a) repulsive interactions
b) inverse square law
c) infinite range
d) separation distance

Conservation of charge means that
a) all of the choices
b) the total amount of charge in the universe is constant.
c) electrons by themselves can be neither created nor destroyed.
d) charge can be neither created nor destroyed.

A positive charge and a negative charge held near each other are released. As they move, the force on each particle
a) increases
b) decreases
c) stays the same
d) not enough information

Two charges separated a distance of 1.0 meter exert a 2-N force on each other. If the charges are pushed to a separation of 1/3 meter, the force on each charge will be
a) 18 N
b) 2.0 N
c) 3.0 N
d) 6.0 N

Electrical polarization occurs when
a) charge distribution in a neutral molecule separates.
b) the electron and the proton are on different sides of an atom.
c) an electron is at a different location than a proton.
d) an atom vibrates in a single direction.

A positive ion has
a) more protons than electrons.
b) more electrons than protons.
c) a +1 charge always.
d) one proton.

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