Return to MCAT® Blog
Homepage
MCAT Physics Question — Wave Speed
- by
- Mar 12, 2014
- MCAT Blog, MCAT Physics, MCAT Question of the Day
- Reviewed By: Liz Flagge
A wave at Waimea Bay, Hawaii, has a speed of 6 m/sec when it starts to break. If 6 waves break each minute, what is the distance from the wave’s crest to its trough?
- 0.5m
- 1m
- 30m
- 60m
Explanation
Wave speed is related to wavelength and frequency by the equation v=fλ. In this problem, 6 waves a minute translates into a frequency of 0.1 Hz.
6 waves/minute x 1minute/60 seconds = 1wave/10 seconds = 0.1 Hz
6m/sec*10sec=60m. Peak to trough is 1/2 wavelength, 30m.
- 0.5m, incorrect, This answer does not convert minutes to seconds.
- 1m, incorrect, This answer does not convert minutes to seconds and does not divide wavelength by 2.
- 30m, correct.
- 60m, incorrect, This answer does not divide wavelength by 2.
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 Advisor using the form below. No obligation, just expert advice.
Related Posts
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