wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Standing waves

Total questions: 14

Worksheet time: 42mins

Name
Class
Date
1.

Standing waves are created by

a)

Two identical waves reflecting off each other

b)

Two identical waves being diffracted together

c)

Two identical waves move through each other in opposite directions

d)

Two identical waves are diffracted from two identical sources

2.

In the diagram which letters represent the nodes

a)

A B C

b)

A C E

c)

B D

d)

B D E

e)

A C D

3.

A violin string of length 0.54 m and wave speed of 565 m/s along it. Calculate the frequency of the 5th harmonic.

a)

1046.3 HZ

b)

282.5 Hz

c)

3138.89 Hz

d)

1546 Hz

4.
The moving black dot is called:
a)
a node
b)
an anti-node
c)
an anti-amplitude
d)
the wangy bit
5.
Which harmonic is shown?
a)
1st
b)
2nd
c)
3rd
d)
4th
6.

The second harmonic on a string fixed at both ends shows

a)

A wavelength

b)

Half a wavelength

c)

Two wavelengths

7.
When a guitar is tuned to adjust its pitch, what is it that is changed?
a)
The wavelength of the fundamental.
b)
The frequency of the fundamental.
c)
The amplitude of the fundamental.
8.
The diagram shows the standing wave pattern of a vibrating string which is fixed at ends X and Y.
Which one of these statements is true?
a)
P to R is one wavelength.
b)
At R the string will move up.
c)
The lowest frequency for this string is one third of its current value.
d)
The kinetic energy of the string is at its maximum value.
9.
Which harmonic is shown?
a)
2nd
b)
3rd
c)
4th
d)
5th
10.
The string is 3.5m long.  Measure the time period and hence calculate the speed of the underlying travelling waves.
a)
0.7ms-1
b)
1.4ms-1
c)
2.8ms-1
d)
3.5ms-1
11.

The diagram below shows the mode of vibration in a closed pipe. The air displacements, nodes (N) and antinodes (A) are as indicated below.

a)
b)
c)
12.

The diagram below shows three modes of vibration in a closed pipe. If the length of the pipe is 10 m, and the speed of sound is 320 m/s, find the frequency of the harmonic shown.

a)
b)
c)
13.

The figure below shows a string vibrating in the sixth harmonic. The length of the string is 1.0 m. What is the wavelength of the wave on the string?

a)

0.33𝑚

b)

1.00m

c)

0.66m

d)

3.00m

14.

A pipe that is open at both ends has a fundamental frequency of 150 Hz when the speed of sound in air is 300 m/s. How long is the pipe?

a)

2.0𝑚

b)

1.0𝑚

c)

1.5𝑚