1|Page
RIO SALADO Physics 112 Midterm Exam Newest 2025/2026 With
Complete 100 Questions And Correct Answers |Already Graded
A+||Brand New Version!
A positive particle begins at a position near a negative plate and ends at a position near a
positively charged plate. Which statement is most accurate - ANSWER=work is done on the
particle so that the particle will end with more energy
Four point charges from a square 1.0 m on each side. What is the potential at a point in the
center of the square of the value of q is 2nC? - ANSWER=r=.5^2 +.5^2
r=sqrt(.5)
r=.707
(9x10^9) (2x10^-9)/.707
25.4V
Based on the plot of equipotentials shown in the example below, order the magnitude of the
electric field strength at points A, B and C from greatest to least - ANSWER=A>B>C
How much energy does it take to move a particle with a charge of +6.0 uC a distance 0.5m
through a uniform electric field with a strength of 700N/C - ANSWER=700(6x10^-6) (.5)
2.1x10^-3 J
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The diagram below shows both the electric field lines and the equipotentials near a point
source. Which of the following statements accurately describes the diagram - ANSWER=The
arrows represent the direction of the electric field, the circles represent positions with equal
potential, and the source charge is negative
Which of the following correctly shows the equipotentials near a negative point source -
ANSWER=C
When drawling the equipotential 3D maps, positive point sources will form - ANSWER=hills
charged particles are at the corners of equilateral triangles, which all have the same area. Rank
the magnitude of the electric field strength at point P in each triangle from greatest to least -
ANSWER=A=B=D>C
A negatively charged particle moves through various electric fields. Which of the following
correctly indicates whether the negatively charged particle gained or lost energy in each of the
following examples - ANSWER=gained energy
lost energy
gained energy
An electron moving to the right at a constant speed moves into an electric field. The electric
field is to the left. Which of the following correctly indicates how the field will affect the
electron's motion - ANSWER=the electrons will speed up q
, 3|Page
an electron moves through a potential difference of 1500V. The magnitude of the charge in
potenial energy experienced by the electron is - ANSWER=1500eV
which statement regarding electric potential is not accurate - ANSWER=electric potential
depends on the amount of charge on a particle in an electric field
which of the following statements regarding equipotentials and electric fields is accurate -
ANSWER=Electric field lines are perpendicular to equipotentials and electric fields is accurate
The units used to measure the strength of an electric field are - ANSWER=Newtons per Coulomb
which of the following explains why international travelers need to use special adapters when
plugging a device designed to operate in the US into a wall outlet in Europe (Vrms in the US is
120V while Vrms in Europe is 240V) - ANSWER=the increased voltage causes an increase in
power usage and the device will overheat
current is caused by - ANSWER=voltage differences
what is the current in the wire if 4x10^18 electrons flow through the wire every 3 seconds -
ANSWER=4x10^18 (1.6x10^-19)
Q=0.64
I=Q/t
RIO SALADO Physics 112 Midterm Exam Newest 2025/2026 With
Complete 100 Questions And Correct Answers |Already Graded
A+||Brand New Version!
A positive particle begins at a position near a negative plate and ends at a position near a
positively charged plate. Which statement is most accurate - ANSWER=work is done on the
particle so that the particle will end with more energy
Four point charges from a square 1.0 m on each side. What is the potential at a point in the
center of the square of the value of q is 2nC? - ANSWER=r=.5^2 +.5^2
r=sqrt(.5)
r=.707
(9x10^9) (2x10^-9)/.707
25.4V
Based on the plot of equipotentials shown in the example below, order the magnitude of the
electric field strength at points A, B and C from greatest to least - ANSWER=A>B>C
How much energy does it take to move a particle with a charge of +6.0 uC a distance 0.5m
through a uniform electric field with a strength of 700N/C - ANSWER=700(6x10^-6) (.5)
2.1x10^-3 J
,2|Page
The diagram below shows both the electric field lines and the equipotentials near a point
source. Which of the following statements accurately describes the diagram - ANSWER=The
arrows represent the direction of the electric field, the circles represent positions with equal
potential, and the source charge is negative
Which of the following correctly shows the equipotentials near a negative point source -
ANSWER=C
When drawling the equipotential 3D maps, positive point sources will form - ANSWER=hills
charged particles are at the corners of equilateral triangles, which all have the same area. Rank
the magnitude of the electric field strength at point P in each triangle from greatest to least -
ANSWER=A=B=D>C
A negatively charged particle moves through various electric fields. Which of the following
correctly indicates whether the negatively charged particle gained or lost energy in each of the
following examples - ANSWER=gained energy
lost energy
gained energy
An electron moving to the right at a constant speed moves into an electric field. The electric
field is to the left. Which of the following correctly indicates how the field will affect the
electron's motion - ANSWER=the electrons will speed up q
, 3|Page
an electron moves through a potential difference of 1500V. The magnitude of the charge in
potenial energy experienced by the electron is - ANSWER=1500eV
which statement regarding electric potential is not accurate - ANSWER=electric potential
depends on the amount of charge on a particle in an electric field
which of the following statements regarding equipotentials and electric fields is accurate -
ANSWER=Electric field lines are perpendicular to equipotentials and electric fields is accurate
The units used to measure the strength of an electric field are - ANSWER=Newtons per Coulomb
which of the following explains why international travelers need to use special adapters when
plugging a device designed to operate in the US into a wall outlet in Europe (Vrms in the US is
120V while Vrms in Europe is 240V) - ANSWER=the increased voltage causes an increase in
power usage and the device will overheat
current is caused by - ANSWER=voltage differences
what is the current in the wire if 4x10^18 electrons flow through the wire every 3 seconds -
ANSWER=4x10^18 (1.6x10^-19)
Q=0.64
I=Q/t
