Astronomy Concepts and Spectrogram Analysis

Astronomy Concepts and Spectrogram Analysis

Assessment

Interactive Video

Physics

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains the vast number of stars in the Milky Way and the likelihood of planets orbiting them. It discusses the challenges of detecting these distant planets and introduces the concept of observing gravitational effects on stars to find them. The Doppler effect is demonstrated using sound waves to illustrate how frequency shifts can reveal information about motion. This principle is then applied to light, showing how it helps detect exoplanets by observing shifts in the light spectrum of stars.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Approximately how many stars are estimated to be in the Milky Way?

1 trillion

100 million

50 billion

400 billion

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What makes it difficult to observe planets orbiting other stars?

They are too bright

They are too far away

They are too small

They move too fast

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What causes a star to wobble when it has a planet orbiting it?

The star's temperature

The gravitational pull of the planet

The star's magnetic field

The star's rotation

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the common center of mass between a star and its planet called?

The nucleus

The epicenter

The core

The barycenter

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What effect is used to detect the wobble of a star?

The Coriolis effect

The Doppler effect

The photoelectric effect

The greenhouse effect

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the sound analogy, what does a change in pitch represent?

A change in direction

A change in speed

A change in volume

A change in frequency

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a horizontal line in a spectrogram indicate?

Increasing frequency

No movement

Decreasing frequency

Constant volume

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?