Wave Measurements - Qs
1
a
Copy and label the transverse wave below. (3 marks)
amplitude
crest
trough
wavelength
b
2
Redraw the wave from part a) but as a longitudinal wave. It must have the same
wavelength. (3 marks)
Look at the following
waves. For each wave,
write down
(i) the wavelength and
(ii) the amplitude. (6 marks)
3
The frequency of a sound produced by a guitar string is 440 Hz. What does this mean?
(1 mark)
4
5
The vertical distance
from the trough of a water
wave at sea to its crest is
6.8 m. What is the amplitude
of the wave? (1 mark)
A boy notices that 45 complete waves travel past him in one and a half minutes.
a
What is the frequency of these water waves? (1 mark)
Extension
●
The speed of light in a vacuum (and air) is 3 × 108 m/s.
●
The speed of sound in air is 330 m/s.
6
Convert the following wavelengths into metres, and then calculate the frequency of the waves:
a
radio waves of wavelength 1.5 km (1 mark)
b
radio waves of wavelength 500 cm (1 mark)
c
sound waves of wavelength 120 mm. (1 mark)
BTEC First <serie
1
a
Copy and label the transverse wave below. (3 marks)
amplitude
crest
trough
wavelength
b
2
Redraw the wave from part a) but as a longitudinal wave. It must have the same
wavelength. (3 marks)
Look at the following
waves. For each wave,
write down
(i) the wavelength and
(ii) the amplitude. (6 marks)
3
The frequency of a sound produced by a guitar string is 440 Hz. What does this mean?
(1 mark)
4
5
The vertical distance
from the trough of a water
wave at sea to its crest is
6.8 m. What is the amplitude
of the wave? (1 mark)
A boy notices that 45 complete waves travel past him in one and a half minutes.
a
What is the frequency of these water waves? (1 mark)
Extension
●
The speed of light in a vacuum (and air) is 3 × 108 m/s.
●
The speed of sound in air is 330 m/s.
6
Convert the following wavelengths into metres, and then calculate the frequency of the waves:
a
radio waves of wavelength 1.5 km (1 mark)
b
radio waves of wavelength 500 cm (1 mark)
c
sound waves of wavelength 120 mm. (1 mark)