Gr 8 Natural Sciences Ch 4.2: Our nearest star
37 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition
Chat to Lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the approximate distance between the Sun and Earth?

  • 150 million kilometers (correct)
  • 100 million kilometers
  • 200 million kilometers
  • 250 million kilometers

Which of the following stars is part of a triple star system?

  • The Sun
  • Alpha Centauri A (correct)
  • The Southern Cross
  • Proxima Centauri

What is the name of the constellation that contains the Pointers?

  • The Big Dipper
  • Ursa Major
  • Orion
  • The Southern Cross (correct)

Who discovered Proxima Centauri?

<p>Robert Innes (A)</p> Signup and view all the answers

What is the name of the star system that Proxima Centauri is a part of?

<p>Alpha Centauri (A)</p> Signup and view all the answers

What is the average distance between Alpha Centauri A and B?

<p>11 times the distance between Earth and the Sun (B)</p> Signup and view all the answers

What is the characteristic of the brightest star among the Pointers?

<p>It is slightly orange (D)</p> Signup and view all the answers

What is the closest star to our Solar System?

<p>Proxima Centauri (D)</p> Signup and view all the answers

What is the main reason why only a few hundred stars are visible in urban areas?

<p>Light pollution (D)</p> Signup and view all the answers

What is the characteristic that defines a constellation?

<p>A group of stars that, when observed from Earth, forms a recognizable pattern (D)</p> Signup and view all the answers

What is the relationship between Alpha Centauri A and B?

<p>They orbit each other (D)</p> Signup and view all the answers

What is true about Proxima Centauri's visibility?

<p>It is less visible due to its distance from Alpha Centauri A and B (C)</p> Signup and view all the answers

What is a notable feature of the Southern Cross constellation?

<p>Its two bright stars, known as the Pointers (A)</p> Signup and view all the answers

What is the approximate number of stars in the Milky Way Galaxy?

<p>Billions (D)</p> Signup and view all the answers

What can be seen from Earth on a clear night without city lights?

<p>Thousands of stars (A)</p> Signup and view all the answers

What is the relationship between Proxima Centauri and the Alpha Centauri system?

<p>Proxima Centauri is part of the Alpha Centauri system (D)</p> Signup and view all the answers

What is unique about the proximity of Proxima Centauri to our Solar System?

<p>It is the closest star to our Solar System. (C)</p> Signup and view all the answers

What is the significance of the Pointers in the Southern Cross constellation?

<p>They point towards the South Pole. (B)</p> Signup and view all the answers

What is a characteristic of the stars in the Alpha Centauri system?

<p>They have different distances from each other. (A)</p> Signup and view all the answers

What is true about the visibility of stars from Earth?

<p>Only a few hundred stars are visible from urban areas due to light pollution. (D)</p> Signup and view all the answers

What is a common feature of constellations?

<p>They are groups of stars that form recognizable patterns. (A)</p> Signup and view all the answers

What is the relationship between the Southern Cross constellation and Proxima Centauri?

<p>Proxima Centauri is part of the Alpha Centauri system, which includes the Southern Cross constellation. (B)</p> Signup and view all the answers

What is unique about the Alpha Centauri system?

<p>It is a triple star system. (C)</p> Signup and view all the answers

What is true about the Milky Way Galaxy?

<p>It contains billions of stars. (A)</p> Signup and view all the answers

What is the primary factor that limits the number of stars visible from urban areas?

<p>Light pollution (A)</p> Signup and view all the answers

Which of the following stars is not part of the Alpha Centauri system?

<p>The Sun (B)</p> Signup and view all the answers

What is the characteristic of the pattern formed by the stars in a constellation?

<p>Recognizable pattern (B)</p> Signup and view all the answers

What is the significance of the Pointers in the Southern Cross constellation?

<p>They point towards the cross (D)</p> Signup and view all the answers

What is the relationship between Proxima Centauri and the Alpha Centauri system?

<p>Proxima Centauri orbits Alpha Centauri A and B (C)</p> Signup and view all the answers

What is the primary reason why Proxima Centauri is less visible than Alpha Centauri A and B?

<p>It is a smaller and fainter star (B)</p> Signup and view all the answers

What is the approximate number of stars that can be seen from Earth on a clear night without city lights?

<p>Thousands (C)</p> Signup and view all the answers

What is the significance of Proxima Centauri's proximity to our Solar System?

<p>It is the closest star to our Solar System (A)</p> Signup and view all the answers

What is the primary reason why Proxima Centauri is less visible than Alpha Centauri A and B?

<p>It is a smaller and fainter star. (A)</p> Signup and view all the answers

What is unique about the proximity of Proxima Centauri to our Solar System?

<p>It is the closest star to our Solar System. (D)</p> Signup and view all the answers

What is true about the visibility of stars from Earth?

<p>Only a few hundred stars are visible from urban areas. (B)</p> Signup and view all the answers

What is a characteristic of the pattern formed by the stars in a constellation?

<p>The stars form a recognizable pattern. (C)</p> Signup and view all the answers

What is the significance of the Pointers in the Southern Cross constellation?

<p>They point towards the South Pole. (A)</p> Signup and view all the answers

Flashcards are hidden until you start studying

More Like This

Use Quizgecko on...
Browser
Browser