Return to Blog
Homepage
MCAT Physics Question — Angle of Incline
- by
- Oct 02, 2017
- MCAT Question of the Day
In an experiment, a student is releasing a block from the top of several distinct inclined planes and allowing it to slide to the bottom. Assume that the tracks are frictionless and that all inclines have equal heights. The speed of the block at the bottom will maximized if the angle of incline is closest to:
A. 90º.
B. 45º.
C. 0º.
D. The angle of incline is irrelevant.
Click for Explanation
This is a conservation of energy question. The block begins with only gravitational potential energy. When reaching the ground, all of that energy has been converted to kinetic energy. Because the block is starting with the same mass and the same height, it will therefore start and end with the same total energy. Thus it will have the same speed upon reaching the ground, regardless of the angle of inclination.
Note that the block is never released from an incline with exactly 0º (flat ground), since the incline has some height and the question only says “closest to”, not “equals”. The answer is (D).
Want more MCAT practice?
We’ve got options for every schedule and learning style!
From the best online MCAT course created by top instructors with 524+ MCAT scores to the most representative full-length practice exams and private tutoring, we can custom tailor your MCAT prep to your goals!
Not sure which option is right for you? Schedule a free MCAT consultation with an MCAT expert using the form below. No obligation, just expert advice.
Related Post
Search the Blog
Free Consultation
Interested in our Online MCAT Course, One-on-One MCAT Tutoring or Med admissions packages? Set up a free consultation with one of our experienced Senior Student Advisors.
Schedule NowPopular Posts
-
-
MCAT Blog What's on the MCAT? -
-
-
MCAT Blog How to Review MCAT Full Lengths
Free MCAT Practice Account
Need great MCAT practice?Get the most representative MCAT practice possible when you sign up for our free MCAT Account, which includes a half-length diagnostic exam and one of our full-length MCAT practice exams.
Learn More