Chapter 14: Investigating Space - Science Mcqs for Grade 7 - Set 10

1)   If galaxies further move apart, hydrogen will be used in the production of new

a. planets
b. stars
c. galaxies
d. clusters
Answer  Explanation 

ANSWER: stars

Explanation:
No explanation is available for this question!


2)   Ptolemy lived from 120 AD to

a. 170 AD
b. 180 AD
c. 190 AD
d. 200 AD
Answer  Explanation 

ANSWER: 180 AD

Explanation:
No explanation is available for this question!


3)   At light speed, reaching to sun from earth it will take approximately

a. 8 seconds
b. 8 minutes
c. 8 days
d. 8 years
Answer  Explanation 

ANSWER: 8 minutes

Explanation:
No explanation is available for this question!


4)   Scientists believe that the whole universe is

a. shrinking
b. expanding
c. destroying
d. vanishing
Answer  Explanation 

ANSWER: expanding

Explanation:
No explanation is available for this question!


5)   Astronomers tuned up their telescopes to pick up radio waves from

a. close galaxies
b. distant galaxies
c. close stars
d. close clusters
Answer  Explanation 

ANSWER: distant galaxies

Explanation:
No explanation is available for this question!


6)   Our atmosphere makes it very difficult to study

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

ANSWER: Jupiter

Explanation:
No explanation is available for this question!


7)   The number of basic shapes of 'galaxies' is

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

ANSWER: 3

Explanation:
No explanation is available for this question!


8)   A revolution of earth takes about

a. a day
b. an hour
c. a year
d. a month
Answer  Explanation 

ANSWER: a year

Explanation:
No explanation is available for this question!


9)   Sunspots are not always at the same place on the

a. galaxy
b. earth
c. moon
d. sun
Answer  Explanation 

ANSWER: sun

Explanation:
No explanation is available for this question!


10)   Solar panels are orbiting above the earth about

a. 600 meters high
b. 1200 meters high
c. 600 kilometers high
d. 1200 kilometers high
Answer  Explanation 

ANSWER: 600 kilometers high

Explanation:
No explanation is available for this question!


11)   A reflecting telescope can collect light from a

a. faint object
b. close object
c. black object
d. white object
Answer  Explanation 

ANSWER: faint object

Explanation:
No explanation is available for this question!


12)   Electrical signals are used to make radio

a. spectrum
b. frames
c. images
d. station
Answer  Explanation 

ANSWER: images

Explanation:
No explanation is available for this question!


13)   In 1779, Edward pigott discovered a galaxy named

a. Black eye galaxy
b. Evil eye galaxy
c. Whirlpool galaxy
d. Andromeda galaxy
Answer  Explanation 

ANSWER: Evil eye galaxy

Explanation:
No explanation is available for this question!


14)   The 'galaxies' are extremely

a. hot
b. far apart
c. close
d. cold
Answer  Explanation 

ANSWER: far apart

Explanation:
No explanation is available for this question!


15)   Besides milky way, there are

a. hundreds of other galaxies
b. thousands of other galaxies
c. millions of other galaxies
d. gazillion of other galaxies
Answer  Explanation 

ANSWER: millions of other galaxies

Explanation:
No explanation is available for this question!


16)   The whole universe was packed into a small mass about

a. 15,000 years ago
b. 15 million years ago
c. 15 billion years ago
d. 15 trillion years ago
Answer  Explanation 

ANSWER: 15 billion years ago

Explanation:
No explanation is available for this question!


17)   To complete one rotation, sun takes approximately

a. two days
b. three days
c. four days
d. five days
Answer  Explanation 

ANSWER: five days

Explanation:
No explanation is available for this question!


18)   A black hole may pull matter in from a nearby

a. galaxy
b. cluster
c. comet
d. star
Answer  Explanation 

ANSWER: star

Explanation:
No explanation is available for this question!


19)   The Earth's atmosphere acts as a filter to remove

a. radiation
b. gamma rays
c. x-rays
d. beta-rays
Answer  Explanation 

ANSWER: gamma rays

Explanation:
No explanation is available for this question!


20)   Astrology was developed in order to predict how constellations would affect the

a. sky
b. galaxies
c. human behavior
d. myths
Answer  Explanation 

ANSWER: human behavior

Explanation:
No explanation is available for this question!