Red Shift – Question 3

(a) A student listens to the sound waves produced by a car siren. When the car is stationary, the student hears a constant frequency sound.

Describe how the wavelength and frequency of the sound waves heard by the student change when the car is driven away from the student. Continue reading

Red Shift – Question 3 was last modified: October 9th, 2015 by Olly Wedgwood

Red Shift – Question 2

The ‘steady state’ theory was once a popular alternative to the ‘big bang’ theory.

The ‘steady state’ theory suggested that the universe, although expanding, had no origin and it has always existed. As the universe expands, a small amount of matter is created to keep the universe looking exactly the same all of the time.

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Red Shift – Question 2 was last modified: September 12th, 2015 by Olly Wedgwood

Red-Shift – Question 1

The visible part of the electromagnetic spectrum from a star includes a dark line. This line is at a specific wavelength. The diagram shows the position of the dark line in the spectrum from the Sun and in the spectrum from a distant galaxy.

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Red-Shift – Question 1 was last modified: August 6th, 2015 by Olly Wedgwood