PHY 112 Midterm Exam Questions &
Answers (Grade A+)
Which of the following particles carries the positive type of charge?
-
correct answer ✅Proton
Two charged particles, each with a charge of +8.0 μC are at some
position near each other. What is the distance between the
particles if the static electric force between them is 5.0 N? -
correct answer ✅0.34 m
Two charged particles each with a net charge of -q are a distance r
apart. The electric force F is measured. The distance between the
particles then doubles to 2r, and the amount of charge on BOTH
charges doubles to -2q. Relative to the original force, what is the
new electric force? -
correct answer ✅F
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 (see below). If you
bring a negatively charged rod near the top of a negatively charged
electroscope, the foil strips will -
correct answer ✅Separate further.
,PHY 112 Midterm Exam Questions &
Answers (Grade A+)
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.
Which of the following statements regarding charge is most
accurate? -
correct answer ✅All of the above are accurate
The property of matter that is responsible for static electric effects
is -
correct answer ✅Charge
Two positively charged particles experience a static electric force of
F. One of the particles is replaced with a new charged particle that
has three times more charge than the original. The new static
electric force will be -
correct answer ✅3F
Which of the following statements concerning the structure of an
atom is accurate? -
, PHY 112 Midterm Exam Questions &
Answers (Grade A+)
correct answer ✅Neutrally charged atoms contain equal amounts
of protons and electron
Particle A has a net charge of -5 μC. Particle B has a net charge of
+10 μC. Which of the following is the largest force? -
correct answer ✅They apply the same force on each other
Which of the following is an accurate example of charging by
induction? -
correct answer ✅A student brings a charged rod near a block of
metal. The student taps the block of metal with a hand and then
removes the charged rod.
Which of the following statements regarding charge is most
accurate? -
correct answer ✅Objects with like charges repel, while objects
with opposite charges attract.
Which of the following processes will NOT result in a change in net
charge on an object? -
correct answer ✅Polarization
Answers (Grade A+)
Which of the following particles carries the positive type of charge?
-
correct answer ✅Proton
Two charged particles, each with a charge of +8.0 μC are at some
position near each other. What is the distance between the
particles if the static electric force between them is 5.0 N? -
correct answer ✅0.34 m
Two charged particles each with a net charge of -q are a distance r
apart. The electric force F is measured. The distance between the
particles then doubles to 2r, and the amount of charge on BOTH
charges doubles to -2q. Relative to the original force, what is the
new electric force? -
correct answer ✅F
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 (see below). If you
bring a negatively charged rod near the top of a negatively charged
electroscope, the foil strips will -
correct answer ✅Separate further.
,PHY 112 Midterm Exam Questions &
Answers (Grade A+)
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.
Which of the following statements regarding charge is most
accurate? -
correct answer ✅All of the above are accurate
The property of matter that is responsible for static electric effects
is -
correct answer ✅Charge
Two positively charged particles experience a static electric force of
F. One of the particles is replaced with a new charged particle that
has three times more charge than the original. The new static
electric force will be -
correct answer ✅3F
Which of the following statements concerning the structure of an
atom is accurate? -
, PHY 112 Midterm Exam Questions &
Answers (Grade A+)
correct answer ✅Neutrally charged atoms contain equal amounts
of protons and electron
Particle A has a net charge of -5 μC. Particle B has a net charge of
+10 μC. Which of the following is the largest force? -
correct answer ✅They apply the same force on each other
Which of the following is an accurate example of charging by
induction? -
correct answer ✅A student brings a charged rod near a block of
metal. The student taps the block of metal with a hand and then
removes the charged rod.
Which of the following statements regarding charge is most
accurate? -
correct answer ✅Objects with like charges repel, while objects
with opposite charges attract.
Which of the following processes will NOT result in a change in net
charge on an object? -
correct answer ✅Polarization
