Physical Science Worksheet
Name___________________________________
1) An elephant can hear sound with a frequency of 15.0 Hz. What is the wavelength of this wave? The speed of
sound in air is 343 m/s.
2) A harmonic wave has a wavelength of 2.0 m and a frequency of 5.0 Hz. What is the speed of the wave?
A) 0.40 m/s
B) 10 m/s
C) 2.5 m/s
D) 0.10 m/s
E) 0.50 m/s
3) A harmonic wave travels with a speed of 200 m/s and has a wavelength of 0.800 m. What is the frequency of the wave?
A) 250 Hz
B) 125 Hz
C) 40.0 Hz
D) 80.0 Hz
E) 25.0 Hz
4) A fisherman fishing from a pier observes that the float on his line bobs up and down, taking 2.4 s to move from its
highest to its lowest point. He also estimates that the distance between adjacent wave crests is 48 m. What is the speed of
the waves going past the pier?
A) 5.0 m/s
B) 1.0 m/s
C) 20 m/s
D) 115 m/s
E) 10 m/s
5) If a wave has a speed of 362 m/s and a period of 4.17 ms, its wavelength is closest to
A) 86.8 m
B) 86,800 m
C) 0.0115 m
D) 1510 m
E) 1.51 m
6) If the frequency of a certain wave is 10 Hz, its period is
A) 10 s.
B) 0.1 s. C) 100 s.
D) none of the above
7) A wave travels an average distance of 6 m in 1 s. What is the wave's velocity?
A) 6 m/s
B) 3 m/s
C) more than 6 m/s
D) 1 m/s
E) less than 0.2 m/s
8) 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) 6 Hz B) 2 Hz
C) 0.5 Hz
D) 1 Hz E) 3 Hz
FIGURE 13-5
9) Fig. 13-5 is a "snapshot" of a wave at a given time. The frequency of the wave is 120 Hz. What is the amplitude?
A) 0.20 m
B) 0.05 m
C) 0.15 m
D) 0.10 m
10) Fig. 13-5 is a "snapshot" of a wave at a given time. The frequency of the wave is 120 Hz. What is the wavelength?
A) 0.30 m
B) 0.20 m
C) 0.10 m
D) 0.05 m
11) Fig. 13-5 is a "snapshot" of a wave at a given time. The frequency of the wave is 120 Hz. What is the wave speed?
A) 36 m/s
B) 12 m/s
C) 24 m/s
D) 48 m/s
12) Crests of an ocean wave pass a pier every
ocean waves?
A) 77 m
B) 67 m
C) 57 m
If the waves are moving at
what is the wavelength of the
D) 34 m
13) Find the frequency of a wave whose period is 0.320 s
14) What is the speed of a wave whose frequency is 9.00 Hz and wavelength is 0.654 m?
15) Which of the following refers to the number of complete waves passing a given point per unit of time?
a. The period
b. The frequency
c. The wavelength
d. None of the above
16) Which of the following refers to the time required for a single wave to pass a given point?
a. The period
b. The frequency
c.
The wavelength d. None of the above
17) The frequency of a sine wave is 60 Hz. What is the period?
18) The period of a certain sine wave is 0.001 s. What is the frequency?
19) Ocean waves are hitting a beach at a rate of 2.0 Hz. The distance between wave crests is 1.5 m. Calculate the speed of
the waves.
20) The note A above middle C on a piano emits a sound wave with wavelength 0.7750 m. What is the frequency of the
wave? Use 341.0 m/s as the speed of sound in air.