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Mini-Quiz: Doppler Effect Applications for Electromagnetic Waves

by Ron Kurtus

Take this Mini-Quiz to check your understanding of the lesson material.

1. What does the term "red-shift" mean?

It is when planets and stars turn red

The color red has shifted over to become blue

The spectrum of a star shifts toward the longer wavelengths

2. Why is frequency compensation necessary when communicating with a satellite?

In order to tune into a changing frequency

To compensate for the absorption from the atmosphere

To prevent others from spying on the communications

3. What is the difference between Doppler radar and regular radar?

They are the same thing

Doppler radar tells the speed, while regular radar only gives the distance

Regular radar tells the distance and Doppler radar tells the weather

If you got all three correct, you are on your way to becoming a Champion in Physics. If you had problems, you had better look over the material again.

Know what things mean

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Mini-Quiz: Doppler Effect Applications for Electromagnetic Waves

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