PSC 2121 Lecture Notes - Lecture 5: Radio Wave, Sound, Wind Wave

56 views5 pages
27 Apr 2016
School
Course
Physical Science PSC2121
Chapter 10: Waves and Sound
Working Problems
1. A wave is a vibration in
A) space.
B) time.
C) both
D) neither
2. A wave having a frequency of 1000 Hz vibrates at
A) less than 1000 cycles per second.
B) 1000 cycles per second.
C) more than 1000 cycles per second.
3. How many vibrations per second are associated with a 101-MHz radio wave?
A) less than 101,000,000
B) 101,000,000
C) more than 101,000,00
4. In Europe an electric razor completes 50 vibrations in 1 s. The frequency of these
vibrations is
A) 50 Hz with a period of 1/50 s.
B) 1/50 Hz with a period of 50 s.
C) 50 Hz with a period of 50 s.
D) 1/50 Hz with a period of 1/50 s.
5. The frequency of the second hand on a clock is
A) 1 Hz.
B) 1/60 Hz.
C) 60 Hz.
6. The period of the second hand on a clock is
A) 1 s.
B) 1/60 s.
C) 60 s.
D) 3600 s.
E) 12 h.
7. If you double the frequency of a vibrating object, its period
A) doubles.
B) is half.
C) is one quarter.
8. The pendulum with the greatest frequency has the
A) shortest period.
B) shortest length.
Page 1
find more resources at oneclass.com
find more resources at oneclass.com
Unlock document

This preview shows pages 1-2 of the document.
Unlock all 5 pages and 3 million more documents.

Already have an account? Log in
Physical Science PSC2121
C) both
D) neither
9. The source of all wave motion is a
A) wave pattern.
B) harmonic object.
C) vibrating object.
D) region of variable high and low pressure.
E) none of the above
10. A wave travels an average distance of 6 m in 1 s. What is the wave's velocity?
A) less than 0.2 m/s
B) 1 m/s
C) 3 m/s
D) 6 m/s
E) more than 6 m/s
11. A weight suspended from a spring bobs up and down one complete cycle every 2 s. Its
frequency is
A) 0.5 Hz.
B) 1 Hz.
C) 2 Hz.
D) none of the above
12. A weight suspended from a spring bobs up and down one complete cycle every 2 s. Its
period is
A) 0.5 s.
B) 1 s.
C) 2 s.
D) none of the above
13. If you double the frequency of a vibrating object, its period
A) doubles.
B) is half.
C) is one quarter.
14. The medium in which a wave travels
A) moves along with the wave.
B) transmits the wave.
C) inhibits the wave.
D) reflects the wave.
15. A floating leaf oscillates up and down two complete cycles each 1 s as a water wave
passes by. What is the wave's frequency?
A) 0.5 Hz
B) 1 Hz
Page 2
find more resources at oneclass.com
find more resources at oneclass.com
Unlock document

This preview shows pages 1-2 of the document.
Unlock all 5 pages and 3 million more documents.

Already have an account? Log in

Get OneClass Notes+

Unlimited access to class notes and textbook notes.

YearlyBest Value
75% OFF
$8 USD/m
Monthly
$30 USD/m
You will be charged $96 USD upfront and auto renewed at the end of each cycle. You may cancel anytime under Payment Settings. For more information, see our Terms and Privacy.
Payments are encrypted using 256-bit SSL. Powered by Stripe.