CP Ch11.7 The Doppler Effect

What is observed when the receiver moves in relation to waves?

• Increase in frequency

• Decrease in frequency

• No change in frequency

• Change in amplitude

What is the term used to describe the change in frequency due to the motion of the source?

• Reflection

• Refraction

• Diffraction

• Doppler effect

What phenomenon allows for the calculation of speeds and spin rates of stars in galaxies?

• Blue shift

• Red shift

• Green shift

• Yellow shift

Why do water waves produced by a bug in a quiet puddle form concentric circles?

• Due to the bug's movement pattern

• Because of the wave speed being different in all directions

• As a result of interference from other waves

• Due to the same wave speed in all directions

What shift occurs when the source of light waves approaches?

• Blue shift

• Red shift

• Green shift

• Yellow shift

How does the frequency of wave motion change when the bug starts moving?

• It remains the same for all observers

• It decreases for all observers

• It increases for all observers

• It changes for observers at different points

What is a fundamental concept in understanding wave behavior and is applicable to various phenomena in nature?

• Newton's Laws of Motion

• Ohm's Law

• Boyle's Law

• The Doppler effect