PhysicsLAB CP Workbook
Waves and Vibrations

Refer to the following information for the next two questions.

A sine curve that represents a transverse wave is drawn below.
 
 


Using the ruler provided, measure the wavelength of the wave. 

Using the ruler provided, measure the amplitude of the wave. 

Refer to the following information for the next two questions.

A kid on a playground swing makes a complete to-and-fro swing each 2 seconds.
 
The frequency of the swing is
 
and the period of the swing is
 
Refer to the following information for the next two questions.

Complete each statement.
 

 
 
 
 
 
 
 

 
 
 
 
 
 
 

Refer to the following information for the next two questions.

The annoying sound from a mosquito is produced when it beats its wings at the average rate of 600 wingbeats per second.
(a) What is the frequency of the sound waves? 

(b) What is the wavelength? 

 
 
Refer to the following information for the next two questions.

A machine gun fires 10 rounds per second. The speed of the bullets is 300 m/s.
 
 
(a) What is the distance in the air between the flying bullets? 

(b) What happens to the distance between the bullets if the rate of fire is increased? 

Refer to the following information for the next two questions.

Consider a wave generator that produces 10 pulses per second. The speed of the waves is 300 cm/sec.
(a) What is the wavelength of the waves? 

(b) What happens to the wavelength if the frequency of pulses is increased?
 
Refer to the following information for the next two questions.

The bird at the right watches the waves. If the portion of a wave between 2 crests passes the pole each second.
(a) What is the speed of the wave? 

(b) What is its period? 

 
 
Suppose that the distance between crests in the above question were 1.5 meters apart and 2 crests pass the pole each second.
(a) What would be the speed of the wave? 

(b) What would be its period? 

Refer to the following diagram for the next three questions.

When an automobile moves toward a listener, the sound of its horn seems



 
and when moving away from the listener, its horn seems



 
The Doppler Effect is due to changes in
 




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