Earth Science Index Cards 5.1

Question 1

Electromagnetic Spectrum

Answer 1

The electromagnetic spectrum ranges from gamma rays through radio waves.

Question 2

Frequency

Answer 2

Frequency refers to the number of peaks passing a stationary point during a given time,
which can also be thought of as the number of cycles in a given time.

Question 3

Doppler effect

Answer 3

observed change
in frequency when there is relative motion between an object and the observer is
called the Doppler effect.

Question 4

Spectrum

Answer 4

A spectrum is a representation of an object’s light spread into component frequencies.

Question 5

Parallax

Answer 5

A nearby object will appear to have different positions, relative to more distant objects,
as it is viewed from different directions.