Download Space Unit Exam /31

Space Unit Exam
Date:
/31
Student Name:
Answer all questions in the space provided on the exam booklet, or where otherwise
instructed. Answer all questions (make your best guess if necessary!)
1. True/False (8 x 1mark)
Indicate in the space provided whether the answer is true or false; if false, you must
correct the answer to make it true.
a. ____ In the beginning, before the ‘big bang’, the universe was very small,
dense and cold.
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b. ____ The light generated from the sun takes 8 1/3 minutes to travel to earth.
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c. ____ Black holes will form stars when they run out of fuel.
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d. ____ The solar system was formed 4.5 million years ago.
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e. ____ In the early days of our solar system, all planets were made of the same
solids, liquids and gases.
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f. ____ The Sun makes up 9.98% of our solar systems mass.
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g. ____ The sun is 4.6 billion years old and halfway through its life cycle.
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h. ____ Pluto is still considered a planet.
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2. Matching (6 x1mark)
Write the correct letter in the space provided to indicate which definition matches
which term.
___ Solar Wind
a. an area in the sky where people have looked up and seen
a picture created by the stars.
___ Light year
b. the distance light travels in a year
___ Eclipse
c. the motion of one body around another.
___ Constellation
d. a blast of particles and magnetic fields flowing out from
the Sun at speeds of up to 1000 km/sec.
___ Revolution
e. the explosion created when, with no support, the outer
parts of a star collapse, and the star explodes and
outshines all the other stars in its galaxy combined
___ Supernova
f. an event in which one body's shadow falls on another
body.
3. Multiple Choice (6x 1mark)
circle the most appropriate answer for each of the following questions
a. What is the closest planet to the sun?
i. Earth
iii. Mars
ii. Neptune
iv. Venus
b. What planet is named after the roman god of war because of its blood-red
colour?
i. Mars
iii. Saturn
ii. Jupiter
iv. Titan
c. After the sun and moon, what is the brightest natural object in the night sky?
i. Polaris
iii. Venus
ii. Sirius
iv. Betelgeuse
d. The ‘Red Spot’ on Jupiter is a:
i. Hurricane
iii. Beauty mark
ii. Volcano
iv. Tornado
e. The rings of Saturn are made of:
i. Gold
iii. Methane
ii. Diamonds
iv. Icy Rock
f. Which planet/planet-like object is named after an Inuit Goddess of the night
sky?
i. Uranus
iii. Sedna
ii. Pluto
iv. Ares
4. Short Answer (11 marks)
a. Why is Pluto no longer considered a planet? (2 marks)
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b. Explain how an Eclipse works in words or using a diagram. (3 marks)
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c. Where does the Aurora Borealis come from? Can you see it in the Southern
Hemisphere? (3 marks)
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d. What is the Electromagnetic Spectrum? How is it useful to astronomers? (3
marks)
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