Characteristic of waves practice exercise 4

Course: Grade 9 Integrated Science - Force and Energy - Waves

Quiz Questions (33 questions)

Question 1
A boda boda rider notices 20 water waves pass under the ferry in 4 seconds while crossing Lake Victoria. What is the frequency of the waves?
Question 2
A boda boda rider notices 20 water waves pass under the ferry in 4 seconds while crossing Lake Victoria. What is the frequency of the waves?  (1 mark)
Question 3
A boda boda rider notices 20 water waves pass under the ferry in 4 seconds while crossing Lake Victoria. What is the frequency of the waves?  (1 mark)
Question 4
The siren of an ambulance in Nairobi emits a sound wave at 340 m/s. If its wavelength is 0.85 m, what is the frequency?
Question 5
The siren of an ambulance in Nairobi emits a sound wave at 340 m/s. If its wavelength is 0.85 m, what is the frequency?  (1 mark)
Question 6
A boy splashing water in a tank creates 3 waves that reach the opposite wall in 6 seconds. What is the frequency of the waves? (1 mark)
Question 7
A boy splashing water in a tank creates 3 waves that reach the opposite wall in 6 seconds. What is the frequency of the waves? (1 mark)
Question 8
A fisherman on Lake Turkana notices that two successive crests are 0.5 m apart and waves hit the boat 10 times each second. What is the speed of the waves?
Question 9
A fisherman on Lake Turkana notices that two successive crests are 0.5 m apart and waves hit the boat 10 times each second. What is the speed of the waves?  (1 mark)
Question 10
A coconut falls in the ocean. It completes a full wave cycle every 0.5 seconds and the distance between crests is 2 metres. What is the speed of the wave?  (1 mark)
Question 11
A coconut falls in the ocean. It completes a full wave cycle every 0.5 seconds and the distance between crests is 2 metres. What is the speed of the wave?  (1 mark)
Question 12
A maize mill produces vibrations that create a wave of frequency 8 Hz. What is the period of the wave?
Question 13
A maize mill produces vibrations that create a wave of frequency 8 Hz. What is the period of the wave?  (1 mark)
Question 14
A DJ in Nairobi plays bass sounds that make visible ripples in a cup of water. If the amplitude of the wave is 4 cm, what is the total vertical movement from crest to trough?  (1 mark)
Question 15
A DJ in Nairobi plays bass sounds that make visible ripples in a cup of water. If the amplitude of the wave is 4 cm, what is the total vertical movement from crest to trough?  (1 mark)
Question 16
A fisherman on Lake Turkana notices that two successive crests are 0.5 m apart and waves hit the boat 10 times each second. What is the speed of the waves?
Question 17
A fisherman on Lake Turkana notices that two successive crests are 0.5 m apart and waves hit the boat 10 times each second. What is the speed of the waves?  (1 mark)
Question 18
A fisherman on Lake Turkana notices that two successive crests are 0.5 m apart and waves hit the boat 10 times each second. What is the speed of the waves?  (1 mark)
Question 19
A maize mill produces vibrations that create a wave of frequency 8 Hz. What is the period of the wave?
Question 20
A maize mill produces vibrations that create a wave of frequency 8 Hz. What is the period of the wave? (1 mark)
Question 21
A maize mill produces vibrations that create a wave of frequency 8 Hz. What is the period of the wave? (1 mark)
Question 22
A swimmer at the Coast feels waves hitting every 0.1 seconds. What is the frequency of the waves?
Question 23
A swimmer at the Coast feels waves hitting every 0.1 seconds. What is the frequency of the waves?  (1 mark)
Question 24
A swimmer at the Coast feels waves hitting every 0.1 seconds. What is the frequency of the waves?  (1 mark)
Question 25
A train in Kisumu produces sound waves with frequency 3 Hz travelling at 15 m/s. What is the wavelength of the waves?
Question 26
A train in Kisumu produces sound waves with frequency 3 Hz travelling at 15 m/s. What is the wavelength of the waves?  (1 mark)
Question 27
A train in Kisumu produces sound waves with frequency 3 Hz travelling at 15 m/s. What is the wavelength of the waves?  (1 mark)
Question 28
A tsunami travels 24 km in 6 seconds after an earthquake near Lamu. What is its speed?
Question 29
A tsunami travels 24 km in 6 seconds after an earthquake near Lamu. What is its speed?  (1 mark)
Question 30
A tsunami travels 24 km in 6 seconds after an earthquake near Lamu. What is its speed?  (1 mark)
Question 31
A vibrating string produces waves at a frequency of 2 Hz. What is the period of these waves?
Question 32
A vibrating string produces waves at a frequency of 2 Hz. What is the period of these waves?  (1 mark)
Question 33
A vibrating string produces waves at a frequency of 2 Hz. What is the period of these waves?  (1 mark)

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