sample problems

1. SAMPLE PROBLEMS FOR
WAVELENGTH

2. FORMULA FOR WAVELENGTH

3. FIND THE WAVELENGTH
PROBLEM 1
•The lowest frequency we can hear is about
20 Hz. If sound travels at 340m/s, calculate
the wavelength of the sound?

4. ANSWER FOR PROBLEM 1

5. FIND THE WAVELENGTH
PROBLEM 2
•A pitching machine goes haywire and pitches at 10
baseballs per second.
a. What is the frequency that this machine is
pitching.
b. The speed of the baseball is 30m/s. What is the
distance in the air between each baseball? (the
wavelength).

6. ANSWER FOR PROBLEM 2

7. FIND THE FREQUENCY
PROBLEM 3
•A sound wave has a velocity of 330m/s and
a wavelength of 0.70 meters. Find the
frequency.

8. ANSWER FOR PROBLEM 3

9. FIND THE WAVELENGTH
PROBLEM 4
•A radio signal has a velocity of 3x108 m/s
(300,000,000 m/s), and a wavelength of 550
meters. What is the frequency of the radio
wave?

10. ANSWER FOR PROBLEM 4