10th science Refresher Course 8-Universe answer key

10th science Refresher Course 8-Universe answer key

Topic 1 - Universe

unit 1 - 10th Science Universe Answer

Title : 10th science Bridge course Answer Worksheet 8

10th science Refresher Course-8-Universe-answer key

EVALUATION

I. CHOOSE THE BEST ANSWER: -

1. Which of the following is a celestial body?

(a) Sun

(b) Moon

(c) Stars

(d) All the above

2. Mangalyaan was sent to _____________

(a) Moon (b) Mars (c) Venus (d) Mercury

3. Chandrayan –I was launched on ___________________

(a) 22nd October 2008

(b) 8th November 2008

(c) 22nd July 2019

(d) 22nd October 2019

4. ________________ is called as Red Planet

(a) Mercury

(b) Venus

(c) Earth

(d) Mars

5. Which of the following is the working principle of rockets?

(a) Newton’s First Law

(b) Newton’s Second Law

(c) Newton’s Third Law

(d) All the above

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II. FILL IN THE BLANKS:

1. The study about stars and planets are known as ___________________

2. Our Sun belongs to _________________________ Galaxy.

3. _________________ is India’s first interplanetary mission.

4. _________________ was the first man to walk on the surface of the moon.

5. A study of very low temperature is __________________.

III. SAY TRUE OR FALSE:

1. The Sun and the celestial bodies form solar system

2. Chandrayann –I was launched from Sriharikota.

3. Mars is the smallest planet in the Solar System.

4. PSLV and GSLV are India’s popular satellites.

5. The propellant of a rocket is only in the form of solids.

IV. MATCH THE FOLLOWING: -

1. a. Chandrayan — System of millions of stars

b. Mangalayaan — Moon

c. Cryogenic — Mars

d. Galaxy — Satellites kept in the launching rockets

e. Payload — Fuel

V. ANSWER THE FOLLOWING:

1. Give an account of Solar system.

2. Explain Kepler’s law.