RIO SALADO PHY 111 FINAL
COMPREHENSIVE EXAM 2026 STUDY
GUIDE Q&A UPDATED
⩥ Which of the following statements regarding static electric charge is
most accurate?
A) Force is proportional to the distance between the charged particles.
B) Force is proportional the inverse distance between the charged
particles.
C) Force is proportional to the inverse square distance between the
charged particles.
D) Force is proportional to the square of the distance between the
charged particles. Answer: C) Force is proportional to the inverse square
distance between the charged particles.
⩥ Two neutral metal blocks are in physical contact side-by-side. Block A
is on the left, and block B is on the right. A positively charged rod is
near the left side of block A (see below). With the positive rod still
present, the blocks separate. As a result, block B will have a net charge
that is
A) positive.
B) negative
C) neutral
,D)not enough information.. Answer: A) positive
⩥ Three charged particles are held in place. Particle A has a net charge
of +2 μC and is at (0, 0) m. Particle B has a net charge of +4 μC and is
placed a (0.5, 0) m. Particle C has a net charge of -4 μC and is placed at
(0, 0.5) m. What is the angle of direction of the net force acting on
particle A?
A) 45°
B) 135°
C) 225°
D) 315°. Answer: B) 135°
⩥ Which of the following statements concerning the structure of an atom
is accurate?
A) Electrons orbit the nucleus exactly the same way that planets orbit
the Sun.
B) Neutrally charged atoms contain equal amounts of protons and
electrons.
C) The nucleus of an atom is composed of protons and electrons.
D)None of the above statements are accurate.. Answer: B) Neutrally
charged atoms contain equal amounts of protons and electrons.
⩥ The property of matter that is responsible for static electric effects is
A) charge.
, B) mass.
C) momentum.
D) density.. Answer: A) charge
⩥ 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?
A) Some of the charge on the balloon transferred to the ceiling through
conduction.
B) The ceiling already had a net positive charge.
C) The ceiling already had a net negative charge.
D) The balloon caused the ceiling to polarize, which created a net
attracting force between the polarized ceiling and the balloon.. Answer:
D) The balloon caused the ceiling to polarize, which created a net
attracting force between the polarized ceiling and the balloon.
⩥ 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?
A) 1/2 F
B) 2 F
C) 4 F
D) F. Answer: D) F
COMPREHENSIVE EXAM 2026 STUDY
GUIDE Q&A UPDATED
⩥ Which of the following statements regarding static electric charge is
most accurate?
A) Force is proportional to the distance between the charged particles.
B) Force is proportional the inverse distance between the charged
particles.
C) Force is proportional to the inverse square distance between the
charged particles.
D) Force is proportional to the square of the distance between the
charged particles. Answer: C) Force is proportional to the inverse square
distance between the charged particles.
⩥ Two neutral metal blocks are in physical contact side-by-side. Block A
is on the left, and block B is on the right. A positively charged rod is
near the left side of block A (see below). With the positive rod still
present, the blocks separate. As a result, block B will have a net charge
that is
A) positive.
B) negative
C) neutral
,D)not enough information.. Answer: A) positive
⩥ Three charged particles are held in place. Particle A has a net charge
of +2 μC and is at (0, 0) m. Particle B has a net charge of +4 μC and is
placed a (0.5, 0) m. Particle C has a net charge of -4 μC and is placed at
(0, 0.5) m. What is the angle of direction of the net force acting on
particle A?
A) 45°
B) 135°
C) 225°
D) 315°. Answer: B) 135°
⩥ Which of the following statements concerning the structure of an atom
is accurate?
A) Electrons orbit the nucleus exactly the same way that planets orbit
the Sun.
B) Neutrally charged atoms contain equal amounts of protons and
electrons.
C) The nucleus of an atom is composed of protons and electrons.
D)None of the above statements are accurate.. Answer: B) Neutrally
charged atoms contain equal amounts of protons and electrons.
⩥ The property of matter that is responsible for static electric effects is
A) charge.
, B) mass.
C) momentum.
D) density.. Answer: A) charge
⩥ 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?
A) Some of the charge on the balloon transferred to the ceiling through
conduction.
B) The ceiling already had a net positive charge.
C) The ceiling already had a net negative charge.
D) The balloon caused the ceiling to polarize, which created a net
attracting force between the polarized ceiling and the balloon.. Answer:
D) The balloon caused the ceiling to polarize, which created a net
attracting force between the polarized ceiling and the balloon.
⩥ 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?
A) 1/2 F
B) 2 F
C) 4 F
D) F. Answer: D) F
