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Chapter 32 Electrostatics #1
Test Description: Review for the test
Instructions: Answer all questions to get your test result.
1) Atomic nuclei of almost all elements consist of
A
electrons and neutrons
B
none of the choices
C
protons and neutrons
D
protons and electrons
2) Two charges are separated by a certain distance. If the magnitude of each charge is doubled, the force on each charge is
A
doubled
B
tripled
C
quadrupled
D
halved
3) The net charge of a neutral atom
A
is zero
B
usually cannot be determined
C
depends only on the number of electrons it has
D
depends only on the number of protons it has
4) Bring a charged object near a conductor and then momentarily touch the conductor. This demonstrates charge by
A
friction
B
deduction
C
polarization
D
induction
5) A difference between electrical forces and gravitational forces is that electrical forces include
A
repulsive interactions
B
infinite range
C
inverse square law
D
separation distance
6) Conservation of charge means that
A
all of the choices
B
electrons by themselves can be neither created nor destroyed.
C
charge can be neither created nor destroyed.
D
the total amount of charge in the universe is constant.
7) A positive charge and a negative charge held near each other are released. As they move, the force on each particle
A
decreases
B
not enough information
C
stays the same
D
increases
8) 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
2.0 N
B
3.0 N
C
18 N
D
6.0 N
9) Electrical polarization occurs when
A
an atom vibrates in a single direction.
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
charge distribution in a neutral molecule separates.
10) A positive ion has
A
one proton.
B
a +1 charge always.
C
more protons than electrons.
D
more electrons than protons.
*select an answer for all questions
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