Draw a picture of a moving source and the waves surrounding it according to what you observed in this experiment. How does the spacing of the wave-fronts in front of the source compare to those behind it?

Imagine a small observer is positioned in front of cork in your picture above. As the cork approaches, the observer measures the wavelength of the waves passing by. How does this wavelength compare to that measured from behind the source?

Imagine that this same observer measures the frequency of the waves instead of wavelength. How does the frequency measured in front of the source appear to the observer compared to the frequency measured from behind?

How do these results help explain why a car's engine sounds different as the car approaches you compared with after it passes?

The Doppler Effect is present in light waves as well. As you will learn in the Color Lab, red light has a lower frequency than blue light. Based on your observations in this experiment, what can you speculate about the motion of a distant star that appears "red-shifted" to astrophysicists? (The light appears redder than expected.)

Posted Date: 3/18/2013 4:16:14 AM | Location : United States

Ask an Expert

Related Discussions:- Visualize the effects of moving sources, Assignment Help, Ask Question on Visualize the effects of moving sources, Get Answer, Expert's Help, Visualize the effects of moving sources Discussions

Write discussion on Visualize the effects of moving sources
Your posts are moderated

Write your message here..

Related Questions

What is friction?, What is Friction? When we think about friction, ther... What is Friction? When we think about friction, there is one more place for energy to go - heat. When you push a book across a table, does the energy of the book change? Not if

Distance and displacement., What are the concepts of distance and displacem... What are the concepts of distance and displacement?

Derive an expression for the torque acting on a loop, Derive an expression ... Derive an expression for the torque acting on a loop of N turns, area A, carrying current i, when held in a uniform magnetic field. With the help of ciruit, show how a moving coil

Anti reflection coating, what is anti reflection coating ? what is anti reflection coating ?

Explain the term dielectric constant, Explain the term 'dielectric constant... Explain the term 'dielectric constant' of a medium in terms of capacitance of a capacitor. Draw a graph showing variation of resistivity of carbon with temperature

What is splicing, What is splicing? Splicing: Two optical fibers uti... What is splicing? Splicing: Two optical fibers utilized for communication are joined with a process termed as Splicing. This must be done very carefully that is the splicing

Explain chemical potential of ideal gas, Explain Chemical Potential of Idea... Explain Chemical Potential of Ideal Gas? Derive the expression for the chemical potential and Gibbs free energy of N molecules of an ideal gas at temperature T, pressure P and

What happens to the water level as the ice melts, As ice floats in water, a... As ice floats in water, about 10% of the ice floats above the surface of the water. If we float some ice in a glass of water, what happens to the water level as the ice melts? M

Define magnetic moment of a current loop, Define magnetic moment of a curre... Define magnetic moment of a current loop. The magnetic moment of a current loop is described as the product of the current and the loop area. Its direction is perpendicular to

Calculate outlet mole fraction, An air stream is saturated with a vapor (B)... An air stream is saturated with a vapor (B) at 130°F and 1 atm pressure.  It is cooled down to 80°F where some of the B is condensed and separated from the vapor stream.  The remai