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Unit 4: Tools of Astronomy

Unit 4: Tools of Astronomy

Assessment

Flashcard

Science

11th Grade

Practice Problem

Hard

Created by

Amy Garner

FREE Resource

Student preview

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20 questions

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1.

FLASHCARD QUESTION

Front

Electromagnetic Wave

Back

A fancy name for light. Each wave has a wavelength, frequency, speed, and energy.

2.

FLASHCARD QUESTION

Front

The Speed of Light

Back

30,000,000 meters per second.

3.

FLASHCARD QUESTION

Front

Wavelength

Back

The distance between one peak or trough on a wave to the next peak or trough.

4.

FLASHCARD QUESTION

Front

Frequency

Back

The number of complete waves that pass a given point in a certain amount of time.

5.

FLASHCARD QUESTION

Front

Radio Waves

Back

Longest wavelengths in the EM spectrum. Passes through walls easily, useful for communication and detecting intelligent life on exoplanets.

6.

FLASHCARD QUESTION

Front

Microwaves

Back

Wavelength range: 1000 mm to 1 mm. Not very useful in astronomy. Easily absorbed by water molecules. Can't melt the Golden Gate Bridge.

7.

FLASHCARD QUESTION

Front

Infrared Waves

Back

Wavelength range: 2000 nm to 700 nm. Useful for seeing cold objects, star-forming regions, protostars, cool stars, distant galaxies, and the early universe.

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