NEW
Font size
WorksheetsADDITION TASK_G11_WAVES
Total questions: 15
Worksheet time: 18mins
What can you conclude about the relationship between wavelength and frequency by observing them?
Wavelength and frequency are unrelated
When wavelength increases, the frequency decreases.
When wavelength increases, the frequency also increases.
What is the change in observed frequency and wavelength of a wave called when its source is moving relative to an observer?
Doppler Effect
Reflection
Refraction
Transmission
Diagram shows a waveform displayed on the screen of a C.R.O. If the controls on the C.R.O. are set at 0.5 V/div and 2 ms/div, find the peak voltage and the frequency of the input signal.
4 V, 2 Hz
5 V, 10 Hz
2 V, 100 Hz
4 V, 100 Hz
Figure shows a wave form obtained from a signal generator connected to the Y-input of a CRO.
Below are the settings on the CRO
Y-gain setting = 3 V cm-1
Timebase setting = 5 ms cm -1
Determine the period of the signal
0.002 s
0.01 s
0.02 s
0.03 s
V=fλ
If the frequency is 5 Hz and the wavelength is 2 m, then what is the wave's velocity?
10 m/s
5/2 m/s
2/5 m/s
7 m/s
What is the Doppler Effect?
A change in frequency due to the relative motion of a wave source and an observer
When a wave overlaps with another wave
When a wave bounces off of another object
When a wave bends due to traveling through a different medium
Look at the picture. Who is experiencing a lower pitched sound?
Observer A
Observer B
There is no difference
An ambulance is moving towards a stationary listener at a constant speed of 30 m∙s-1 . The siren of the ambulance emits sound waves having a wavelength of 0,28 m. Take the speed of sound in air as 340 m∙s-1
Calculate the frequency of the sound waves emitted by the siren as heard by the ambulance driver.
1 213 Hz
1 214,29 Hz
1 215 Hz
