Physics 1A (Spring 2025) [Prof. Philbert Tsai] Mock Practice Quiz 05 (for Practice only) page 1
How to use this Practice / Mock Quiz
This practice quiz is derived from previous actual quizzes.
It is intended to give you practice going through a realistic set of quiz questions.
It is strongly recommended that you only use the practice quiz as a timed practice
near the end of your studies when you believe you are ready to take the actual quiz.
This mock quiz spans roughly 3 weeks of material (covering Chapters A13-15)
and so it contains 13 questions instead of the typical 7-8.
Give yourself 90 minutes to take the quiz.
It is strongly recommended that you do NOT look at the solutions until after you
have taken the quiz as if it were a real, timed exam.
It is strongly recommended that you leave yourself some time afterwards to review
those topics that you had difficulty with on the practice exam.
The practice exam is NOT intended as a study guide
It is NOT intended to reflect exactly which topics within the covered
material will or will not show up on the actual quiz/final.
It is NOT intended to represent the difficulty level of the questions
on a particular sub-topic that may show up on the actual quiz/final.
(in other words, just because a topic was covered by a purely conceptual
question on the practice quiz does NOT mean that the same topic will
not be covered as a calculation on the actual quiz/final, or vice-versa.)
, Physics 1A (Spring 2025) [Prof. Philbert Tsai] Mock Practice Quiz 05 (for Practice only) page 2
1) Two particles of different mass start from rest. The same non-zero net force (Fnet ≠ 0) acts on both of them as
they move over equal distances. How do the magnitudes of their final momenta compare?
A) The larger mass ends up having more momentum
B) The smaller mass ends up having more momentum
C) Both masses end up having the same momentum
D) There is not enough information given to tell
2) Which of the following statements about collisions is FALSE
A) Two clay blocks smashing together and sticking is an example of a perfectly inelastic collision.
B) In a perfectly elastic collision, kinetic energy is conserved
C) In a perfectly inelastic collision, total momentum is conserved.
D) In a perfectly elastic collision, total momentum is conserved.
E) Two cars crashing head-on, causing front-end collapse, and then falling apart is an example of a
perfectly elastic collision.
How to use this Practice / Mock Quiz
This practice quiz is derived from previous actual quizzes.
It is intended to give you practice going through a realistic set of quiz questions.
It is strongly recommended that you only use the practice quiz as a timed practice
near the end of your studies when you believe you are ready to take the actual quiz.
This mock quiz spans roughly 3 weeks of material (covering Chapters A13-15)
and so it contains 13 questions instead of the typical 7-8.
Give yourself 90 minutes to take the quiz.
It is strongly recommended that you do NOT look at the solutions until after you
have taken the quiz as if it were a real, timed exam.
It is strongly recommended that you leave yourself some time afterwards to review
those topics that you had difficulty with on the practice exam.
The practice exam is NOT intended as a study guide
It is NOT intended to reflect exactly which topics within the covered
material will or will not show up on the actual quiz/final.
It is NOT intended to represent the difficulty level of the questions
on a particular sub-topic that may show up on the actual quiz/final.
(in other words, just because a topic was covered by a purely conceptual
question on the practice quiz does NOT mean that the same topic will
not be covered as a calculation on the actual quiz/final, or vice-versa.)
, Physics 1A (Spring 2025) [Prof. Philbert Tsai] Mock Practice Quiz 05 (for Practice only) page 2
1) Two particles of different mass start from rest. The same non-zero net force (Fnet ≠ 0) acts on both of them as
they move over equal distances. How do the magnitudes of their final momenta compare?
A) The larger mass ends up having more momentum
B) The smaller mass ends up having more momentum
C) Both masses end up having the same momentum
D) There is not enough information given to tell
2) Which of the following statements about collisions is FALSE
A) Two clay blocks smashing together and sticking is an example of a perfectly inelastic collision.
B) In a perfectly elastic collision, kinetic energy is conserved
C) In a perfectly inelastic collision, total momentum is conserved.
D) In a perfectly elastic collision, total momentum is conserved.
E) Two cars crashing head-on, causing front-end collapse, and then falling apart is an example of a
perfectly elastic collision.
