PHYSICS 1260 PRACTICE SOLUTION 2026
TESTED QUESTIONS WITH PRECISE
SOLUTIONS GRADED A+
◉ The superposition of identical waves affects
A) amplitude.
B) wavelength.
C) speed.
D) [all of these]
E) [none of these]. Answer: A) amplitude
◉ The wave-particle duality applies to A) photons. B) electrons. C)
protons. D) [all of these] E) [none of these]. Answer: D) all of these
◉ After passing through double slits, electrons make a pattern on a
screen that
A) shows which slit each electron has passed through.
B) resembles a pattern that waves make.
C) has two peaks of intensity.
, D) has a single wide peak of intensity.. Answer: B) resembles a pattern
that waves make
◉ You and a friend can share the same space and time measurements
when A) you are side-by-side at rest. B) you both are side-by-side
moving at constant velocity. C) [either of these] D) [none of these].
Answer: C) [either of these]
◉ Objects moving at relativistic speeds appear to observers at rest to be
A) stretched. B) contracted. C) either, depending on direction of motion.
D) [none of these]. Answer: B) contracted.
◉ To outside observers at rest, the overall sizes of objects traveling at
relativistic speeds are
A) larger.
B) smaller.
C) the same size.. Answer: B) smaller.
◉ According to the well-known equation E = mc2,
A) mass and energy travel at the speed of light squared.
B) energy is actually mass traveling at the speed of light squared.
C) mass and energy travel at twice the speed of light.
D) mass and energy are related.
E) [none of these]. Answer: D) mass and energy are related
TESTED QUESTIONS WITH PRECISE
SOLUTIONS GRADED A+
◉ The superposition of identical waves affects
A) amplitude.
B) wavelength.
C) speed.
D) [all of these]
E) [none of these]. Answer: A) amplitude
◉ The wave-particle duality applies to A) photons. B) electrons. C)
protons. D) [all of these] E) [none of these]. Answer: D) all of these
◉ After passing through double slits, electrons make a pattern on a
screen that
A) shows which slit each electron has passed through.
B) resembles a pattern that waves make.
C) has two peaks of intensity.
, D) has a single wide peak of intensity.. Answer: B) resembles a pattern
that waves make
◉ You and a friend can share the same space and time measurements
when A) you are side-by-side at rest. B) you both are side-by-side
moving at constant velocity. C) [either of these] D) [none of these].
Answer: C) [either of these]
◉ Objects moving at relativistic speeds appear to observers at rest to be
A) stretched. B) contracted. C) either, depending on direction of motion.
D) [none of these]. Answer: B) contracted.
◉ To outside observers at rest, the overall sizes of objects traveling at
relativistic speeds are
A) larger.
B) smaller.
C) the same size.. Answer: B) smaller.
◉ According to the well-known equation E = mc2,
A) mass and energy travel at the speed of light squared.
B) energy is actually mass traveling at the speed of light squared.
C) mass and energy travel at twice the speed of light.
D) mass and energy are related.
E) [none of these]. Answer: D) mass and energy are related
