RIO SALADO Physics 112 Midterm Exam
Questions & Answers (Grade A+)
which of the following statements regarding static electric charge is
most accurate -
correct answer ✅force is proportional to the inverse square
distance between the charged particles
An object has a positive net charge. The most likely reason for the
net charge is that -
correct answer ✅electrons were transferred off the object
what is the net charge on an object that has gained 8x10^13
electrons -
correct answer ✅8x10 ^13 * 1.6 x10^-19
=-1.3 x10^-5
which of the following processes will not result in a change in net
charge on an object? -
correct answer ✅polarization
which of the following is an example of an insulation -
correct answer ✅a piece of paper
a block of wax
a block of glass
,RIO SALADO Physics 112 Midterm Exam
Questions & Answers (Grade A+)
all of the above are examples
which of the following statements concerning charge is most
accurate -
correct answer ✅the total charge present in the system and
surroundings is constant in any process
Two charged particles both have positive net charges. They are near
each other and released from rest. Which of the following
statements best describes the interaction of the particles ? -
correct answer ✅The particles will repel. As they get further apart,
the repelling force will decrease
Particle A has a net charge of -5uC. Particle B has a net charge
+10uC. Which of the following is the largest force? -
correct answer ✅they apply the same force on each other
Which of the following statements concerning the structure of an
atom is accurate? -
correct answer ✅neutrally charged atoms contain equal amounts
of protons and electrons
, RIO SALADO Physics 112 Midterm Exam
Questions & Answers (Grade A+)
Two identical metal blocks are in contact side-by-side. A positively
charged rod moves near the left block. Which of the following most
accurately shows the resulting distribution of charge throughout
the metal blocks? -
correct answer ✅When a positively charged rod moves near the
left of the block, it attracts or pulls negative charge of the block.
a positively charged plastic balloon filled with air will stick to a
neutrally charged nonmetal ceiling. Which of the following is the
most likely explanation for this behavior? -
correct answer ✅The ballon caused the ceiling to polarize, which
created a net attracting force between the polarized ceiling and the
balloon
an electroscope is a device that has small gold foil strips suspended
from a metal rod. If the electroscope is negatively charged, the foil
strips will repel and separate from each other. If you bring a
negatively charged rod near the top of a negatively charged
electroscope, the foil strips will -
correct answer ✅separate further
Which of the following is an accurate example of charging by
induction -
correct answer ✅a student brings a charged rod near a block of
Questions & Answers (Grade A+)
which of the following statements regarding static electric charge is
most accurate -
correct answer ✅force is proportional to the inverse square
distance between the charged particles
An object has a positive net charge. The most likely reason for the
net charge is that -
correct answer ✅electrons were transferred off the object
what is the net charge on an object that has gained 8x10^13
electrons -
correct answer ✅8x10 ^13 * 1.6 x10^-19
=-1.3 x10^-5
which of the following processes will not result in a change in net
charge on an object? -
correct answer ✅polarization
which of the following is an example of an insulation -
correct answer ✅a piece of paper
a block of wax
a block of glass
,RIO SALADO Physics 112 Midterm Exam
Questions & Answers (Grade A+)
all of the above are examples
which of the following statements concerning charge is most
accurate -
correct answer ✅the total charge present in the system and
surroundings is constant in any process
Two charged particles both have positive net charges. They are near
each other and released from rest. Which of the following
statements best describes the interaction of the particles ? -
correct answer ✅The particles will repel. As they get further apart,
the repelling force will decrease
Particle A has a net charge of -5uC. Particle B has a net charge
+10uC. Which of the following is the largest force? -
correct answer ✅they apply the same force on each other
Which of the following statements concerning the structure of an
atom is accurate? -
correct answer ✅neutrally charged atoms contain equal amounts
of protons and electrons
, RIO SALADO Physics 112 Midterm Exam
Questions & Answers (Grade A+)
Two identical metal blocks are in contact side-by-side. A positively
charged rod moves near the left block. Which of the following most
accurately shows the resulting distribution of charge throughout
the metal blocks? -
correct answer ✅When a positively charged rod moves near the
left of the block, it attracts or pulls negative charge of the block.
a positively charged plastic balloon filled with air will stick to a
neutrally charged nonmetal ceiling. Which of the following is the
most likely explanation for this behavior? -
correct answer ✅The ballon caused the ceiling to polarize, which
created a net attracting force between the polarized ceiling and the
balloon
an electroscope is a device that has small gold foil strips suspended
from a metal rod. If the electroscope is negatively charged, the foil
strips will repel and separate from each other. If you bring a
negatively charged rod near the top of a negatively charged
electroscope, the foil strips will -
correct answer ✅separate further
Which of the following is an accurate example of charging by
induction -
correct answer ✅a student brings a charged rod near a block of
