RIO SALADO PHYSICS 112 MIDTERM
EXAM QUESTIONS WITH
ELABORATED ANSWERS
, 2025
which of the following statements regarding static electric charge is most accurate -
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 -
ANSWER-electrons were transferred off the object
what is the net charge on an object that has gained 8x10^13 electrons - 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? -
ANSWER-polarization
which of the following is an example of an insulation - ANSWER-a piece of paper
a block of wax
a block of glass
all of the above are examples
which of the following statements concerning charge is most accurate - 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 ? - 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? - ANSWER-they apply the same force on each other
Which of the following statements concerning the structure of an atom is accurate? -
ANSWER-neutrally charged atoms contain equal amounts of protons and electrons
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? - 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?
EXAM QUESTIONS WITH
ELABORATED ANSWERS
, 2025
which of the following statements regarding static electric charge is most accurate -
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 -
ANSWER-electrons were transferred off the object
what is the net charge on an object that has gained 8x10^13 electrons - 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? -
ANSWER-polarization
which of the following is an example of an insulation - ANSWER-a piece of paper
a block of wax
a block of glass
all of the above are examples
which of the following statements concerning charge is most accurate - 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 ? - 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? - ANSWER-they apply the same force on each other
Which of the following statements concerning the structure of an atom is accurate? -
ANSWER-neutrally charged atoms contain equal amounts of protons and electrons
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? - 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?
