Chapter 14: Investigating Space - Science Mcqs for Grade 7 - Set 5

1)   The telescope that makes a far off object bigger is known as

a. Radio telescope
b. Reflecting telescope
c. Refracting telescope
d. Hubble telescope
Answer  Explanation 

ANSWER: Refracting telescope

Explanation:
No explanation is available for this question!


2)   More constellations were discovered when people drew maps of

a. horoscopes
b. sky during daytime
c. sky during night
d. celestial bodies
Answer  Explanation 

ANSWER: sky during night

Explanation:
No explanation is available for this question!


3)   A neutron star weighs more than

a. Moon
b. Sun
c. Comet
d. Earth
Answer  Explanation 

ANSWER: Sun

Explanation:
No explanation is available for this question!


4)   In 1930, astronomers divided sky into

a. 66 areas
b. 77 areas
c. 88 areas
d. 99 areas
Answer  Explanation 

ANSWER: 88 areas

Explanation:
No explanation is available for this question!


5)   Neutron stars are much denser than

a. red super giants
b. blue giants
c. white dwarfs
d. yellow stars
Answer  Explanation 

ANSWER: white dwarfs

Explanation:
No explanation is available for this question!


6)   A black hole is more dense than a

a. white dwarf
b. neutron star
c. yellow star
d. red supergiant
Answer  Explanation 

ANSWER: neutron star

Explanation:
No explanation is available for this question!


7)   By Sirius B, Sirius A is orbited every

a. 30 years
b. 40 years
c. 50 years
d. 60 years
Answer  Explanation 

ANSWER: 50 years

Explanation:
No explanation is available for this question!


8)   The average distance between each star is about

a. 2 light years
b. 3 light years
c. 4 light years
d. 5 light years
Answer  Explanation 

ANSWER: 5 light years

Explanation:
No explanation is available for this question!


9)   A dish is faced towards sky to focus and collect

a. energy
b. waves
c. power
d. current
Answer  Explanation 

ANSWER: waves

Explanation:
No explanation is available for this question!


10)   The world's most famous telescope is

a. Spitzer Space Telescope
b. Fermi Gamma-Ray Space Telescope
c. Arecibo Telescope
d. Hubble Telescope
Answer  Explanation 

ANSWER: Hubble Telescope

Explanation:
No explanation is available for this question!


11)   In Hubble telescope a computer combines information provided by the separate

a. aerials
b. dishes
c. radio waves
d. wavelengths
Answer  Explanation 

ANSWER: dishes

Explanation:
No explanation is available for this question!


12)   Asteroids are rocky, airless worlds that orbit our sun but are too small to be called

a. stars
b. planets
c. both a and b
d. celestial bodies
Answer  Explanation 

ANSWER: planets

Explanation:
No explanation is available for this question!


13)   The sun is too close to earth, this is why it looks

a. yellow
b. small
c. large
d. orange
Answer  Explanation 

ANSWER: large

Explanation:
No explanation is available for this question!


14)   A group of twelve constellations is called

a. Ursa
b. Perseus
c. Hercules
d. Zodiac
Answer  Explanation 

ANSWER: Zodiac

Explanation:
No explanation is available for this question!


15)   The diameter of the dish of the largest radio telescope is

a. 105m
b. 205m
c. 305m
d. 405m
Answer  Explanation 

ANSWER: 305m

Explanation:
No explanation is available for this question!


16)   The distance that light travels in one year is known as

a. approximate distance
b. star speed
c. light year
d. sound year
Answer  Explanation 

ANSWER: light year

Explanation:
No explanation is available for this question!


17)   The stars we see in a dark night are

a. hundreds of miles away
b. thousands of miles away
c. millions of miles away
d. zillions of miles away
Answer  Explanation 

ANSWER: millions of miles away

Explanation:
No explanation is available for this question!


18)   Compared to an optical telescope, the radio telescope should be

a. small in size
b. same in size
c. large in size
d. tiny in size
Answer  Explanation 

ANSWER: large in size

Explanation:
No explanation is available for this question!


19)   The distance between Sirius and Earth is about

a. 6 light years
b. 9 light years
c. 12 light years
d. 120 light years
Answer  Explanation 

ANSWER: 9 light years

Explanation:
No explanation is available for this question!


20)   Some constellations can be seen around the year, they circle around the sky never sinking below the

a. planets
b. horizon
c. vertex
d. sky
Answer  Explanation 

ANSWER: horizon

Explanation:
No explanation is available for this question!