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Question 1 (1 point)Save Question 1Save
An electron situated near another electron would feel
a repulsive electrical force.
an attractive electrical force.
a repulsive magnetic force.
an attractive magnetic force.
no forces from the other electron.
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Question 2 (1 point)Save Question 2Save
Compared to the magnitude of the charge on a proton, the magnitude of the electrical charge carried by an electron is
about the same.
exactly the same.
is only ½ as large.
is only as large.
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Question 3 (1 point)Save Question 3Save
An atom has
just as many electrons as protons.
no neutrons in the nucleus.
more protons than electrons.
as many electrons as protons and neutrons combined.
at least 1 neutron.
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Question 4 (1 point)Save Question 4Save
It is observed that a positive charge released between the parallel plates of a capacitor moves upward. The direction of the electric field between the capacitor plates is__________________.
upward
downward
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Question 5 (1 point)Save Question 5Save
A positive test charge is moved closer to another positive charge. The potential of the test charge _____________________ .
increases
decreases
remains the same
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Question 6 (1 point)Save Question 6Save
A glass rod is rubbed with nylon. The rod is then brought close to the metal knob of an electroscope. A person's finger briefly touches the knob on the far side and is then removed. After the rod is removed the charge on the electroscope will be ___________.
Positive
Negative
Zero
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Question 7 (1 point)Save Question 7Save
A plastic rod is rubber with fur. The rod is then touched to the metal knob of an electroscope. The sign of the charge on the electroscope after contact is ___________________.
Positive
Negative
Neutrall
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Question 8 (1 point)Save Question 8Save
A uniform electric field has a magnitude of 10 N/C and is directed downward. A +0.5 charge is brought into the field. The charge will experience a force of
______________ .
5 N downward
5 N upward
50 N upward
50 N downward
20 N downward
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Question 9 (1 point)Save Question 9Save
A positive charge is fixed at the origin. A positive charge is moved along the x-axis from x = 10 cm to x = 50 cm. The potential energy of the system
does not change.
increases.
decreases.
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Question 10 (1 point)Save Question 10Save
Two equal charges repel one another with a force of 4.0 x 10-4 N when they are 10 cm apart. If they are moved until the separation is 20 cm, the repulsive force will be
16.0 x 10-4N.
8.0 x 10-4N.
4.0 x 10-4N.
2.0 x 10-4N.
1.0 x 10-4N.
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Question 11 (1 point)Save Question 11Save
A positively charged rod is brought close to an uncharged electroscope. While the rod is close, one's finger touches the far side of the metal ball on the electroscope. The rod is removed and then the finger is taken away. The electroscope is
positively charged.
negatively charged.
uncharged.
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Question 12 (1 point)Save Question 12Save
After a glass rod is rubbed with a nylon cloth
both the rod and cloth will have a positive charge.
the rod will have a negative charge and the cloth positive.
both the rod and cloth will have a negative charge.
the rod will have a positive charge and the cloth negative.
the rod will have a negative charge and the cloth will be neutral.
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Question 13 (1 point)Save Question 13Save
If the potential at point A is one volt it means that
an object at A has charge equal to one coulomb.
an electron at A can perform one joule of work.
there is a small battery present.
a charge at A has potential energy one joule for each coulomb of charge.
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Question 14 (1 point)Save Question 14Save
The electric field created by a negative charge
points toward the charge.
points away from the charge.
describes concentric circles about the direction of motion.
points in the direction of motion.
points in the direction opposite to the velocity.
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Question 15 (1 point)Save Question 15Save
If the distance between two spherical charged objects decreases by a factor of two, then the electrical force between the objects
decreases by a factor of four.
is half as big.
does not change.
doubles.
increases by a factor of four.
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Question 16 (1 point)Save Question 16Save
A strip of fur is rubbed against a hard rubber rod. The rod thereby acquires a negative charge because
frictional forces create electrons.
rubbing caused electrons to move from the fur to the rod.
friction caused protons to be removed from the rod.
electrons from the air molecules are transferred to the rod.
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Question 17 (1 point)Save Question 17Save
A small bit of paper is electrically neutral. A charged rod can attract the bit of paper by the process of __________________.
Induction
Conduction
Polarization
Osmosis
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Question 18 (1 point)Save Question 18Save
Two equal positive charges are near each other. If we increase the amount of charge on just one of them, then
both charges feel an increased electrical force.
only smaller charge feels an increased electrical force.
only the larger charge feels an increased electrical force.
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Question 19 (1 point)Save Question 19Save
The electrical force between any two charged objects is
always attractive.
always repulsive.
always balanced by the action-reaction forces.
dependent on the sign of the charge on each object.
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Question 20 (1 point)Save Question 20Save
A glass rod is rubbed with silk so that the silk becomes negative. The rod is then used to charge an electroscope. The charge on the electroscope will be
positive if charged by contact.
positive if charged by induction.
neutral.
negative if charged by contact.
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Question 1 (1 point)Save Question 1Save
An electron situated near another electron would feel
a repulsive electrical force.
an attractive electrical force.
a repulsive magnetic force.
an attractive magnetic force.
no forces from the other electron.
sub section
Question 2 (1 point)Save Question 2Save
Compared to the magnitude of the charge on a proton, the magnitude of the electrical charge carried by an electron is
about the same.
exactly the same.
is only ½ as large.
is only as large.
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Question 3 (1 point)Save Question 3Save
An atom has
just as many electrons as protons.
no neutrons in the nucleus.
more protons than electrons.
as many electrons as protons and neutrons combined.
at least 1 neutron.
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Question 4 (1 point)Save Question 4Save
It is observed that a positive charge released between the parallel plates of a capacitor moves upward. The direction of the electric field between the capacitor plates is__________________.
upward
downward
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Question 5 (1 point)Save Question 5Save
A positive test charge is moved closer to another positive charge. The potential of the test charge _____________________ .
increases
decreases
remains the same
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Question 6 (1 point)Save Question 6Save
A glass rod is rubbed with nylon. The rod is then brought close to the metal knob of an electroscope. A person's finger briefly touches the knob on the far side and is then removed. After the rod is removed the charge on the electroscope will be ___________.
Positive
Negative
Zero
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Question 7 (1 point)Save Question 7Save
A plastic rod is rubber with fur. The rod is then touched to the metal knob of an electroscope. The sign of the charge on the electroscope after contact is ___________________.
Positive
Negative
Neutrall
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Question 8 (1 point)Save Question 8Save
A uniform electric field has a magnitude of 10 N/C and is directed downward. A +0.5 charge is brought into the field. The charge will experience a force of
______________ .
5 N downward
5 N upward
50 N upward
50 N downward
20 N downward
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Question 9 (1 point)Save Question 9Save
A positive charge is fixed at the origin. A positive charge is moved along the x-axis from x = 10 cm to x = 50 cm. The potential energy of the system
does not change.
increases.
decreases.
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Question 10 (1 point)Save Question 10Save
Two equal charges repel one another with a force of 4.0 x 10-4 N when they are 10 cm apart. If they are moved until the separation is 20 cm, the repulsive force will be
16.0 x 10-4N.
8.0 x 10-4N.
4.0 x 10-4N.
2.0 x 10-4N.
1.0 x 10-4N.
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Question 11 (1 point)Save Question 11Save
A positively charged rod is brought close to an uncharged electroscope. While the rod is close, one's finger touches the far side of the metal ball on the electroscope. The rod is removed and then the finger is taken away. The electroscope is
positively charged.
negatively charged.
uncharged.
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Question 12 (1 point)Save Question 12Save
After a glass rod is rubbed with a nylon cloth
both the rod and cloth will have a positive charge.
the rod will have a negative charge and the cloth positive.
both the rod and cloth will have a negative charge.
the rod will have a positive charge and the cloth negative.
the rod will have a negative charge and the cloth will be neutral.
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Question 13 (1 point)Save Question 13Save
If the potential at point A is one volt it means that
an object at A has charge equal to one coulomb.
an electron at A can perform one joule of work.
there is a small battery present.
a charge at A has potential energy one joule for each coulomb of charge.
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Question 14 (1 point)Save Question 14Save
The electric field created by a negative charge
points toward the charge.
points away from the charge.
describes concentric circles about the direction of motion.
points in the direction of motion.
points in the direction opposite to the velocity.
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Question 15 (1 point)Save Question 15Save
If the distance between two spherical charged objects decreases by a factor of two, then the electrical force between the objects
decreases by a factor of four.
is half as big.
does not change.
doubles.
increases by a factor of four.
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Question 16 (1 point)Save Question 16Save
A strip of fur is rubbed against a hard rubber rod. The rod thereby acquires a negative charge because
frictional forces create electrons.
rubbing caused electrons to move from the fur to the rod.
friction caused protons to be removed from the rod.
electrons from the air molecules are transferred to the rod.
sub section
Question 17 (1 point)Save Question 17Save
A small bit of paper is electrically neutral. A charged rod can attract the bit of paper by the process of __________________.
Induction
Conduction
Polarization
Osmosis
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Question 18 (1 point)Save Question 18Save
Two equal positive charges are near each other. If we increase the amount of charge on just one of them, then
both charges feel an increased electrical force.
only smaller charge feels an increased electrical force.
only the larger charge feels an increased electrical force.
sub section
Question 19 (1 point)Save Question 19Save
The electrical force between any two charged objects is
always attractive.
always repulsive.
always balanced by the action-reaction forces.
dependent on the sign of the charge on each object.
sub section
Question 20 (1 point)Save Question 20Save
A glass rod is rubbed with silk so that the silk becomes negative. The rod is then used to charge an electroscope. The charge on the electroscope will be
positive if charged by contact.
positive if charged by induction.
neutral.
negative if charged by contact.
Save All Responses Go To Submit Quiz
