Page 1 of5
The Chinese University of Hong Kong
Midterm Examination 1St term 200910
Course COde & Title:.__.___HQ§_Z£QME-._A§EEQQQEEX,WWW-
Time allowed:
Name: Student ID:
i. Answer ALL questions. Questions 5-10 are MC questions. Choose the best
Chapter 3
3.1
The earth and the sky I
Celestial sphere ()
Objects very far away from us appear to be of equal distance from us (Fig. 3-1)
in fact, an illusion.
Fig. 3-1 (Top) Suppose we are standing under the Rice cooker () of
Science Centre. Mr. A and
Chapter 4
The origin of modern astronomy I
Around 1340 the English scholar William of Ockham enunciated his famous principle,
called Ockhams razor, which helps scientists cut through a thicket of competing
theories to find the best theory. Paraphrased in
Chapter 2
2.1
The solar system I
A quick survey
The solar system is dominated by the central sun - a star giving out light and heat,
whose mass is about 300,000 times greater than that of the earth.
Planets (): Eight planets (Fig. 2-1) and their satelli
Chapter 1 The universe at different scales
Poets say science takes away from the beauty of the stars - mere globs of gas atoms.
Nothing is mere. I too see the stars on a desert night, and feel them. But do I see less or
more? The vastness of the heavens s
Chapter 6
6.1
The earth and the sky II
Silent movement of sunrise/sunset position
During the period between Summer Solstice () (June 22) and Winter Solstice
() (December 22), the sunrise/sunset position moves southward.
From winter solstice to the next
Loops
Iteration
Recursion
factorial
N! = N*(N-1)!
prefix to postfix conversion
the Towers of Hanoi
Recursive Factorial
Algorithm recursiveFactorial ( n )
/ calculate factorial of a number using recursion
if ( n equals 0 )
return 1;
else
return ( n *
Trees - Introduction
Trees - Introduction
General Tree
AVL Trees
A tree is a collection of nodes linked in a treelike structure.
(root, parent, child, edge, depth, height)
It is a tree that has a balance condition so that
the search of the tree is bounde
Chapter 6
6.1
The earth and the sky II
Silent movement of sunrise/sunset position
During the period between Summer Solstice () (June 22) and Winter Solstice () (December 22), the sunrise/sunset position moves southward. From winter solstice to the next s
Chapter 1 The universe at different scales
Poets say science takes away from the beauty of the stars - mere globs of gas atoms. Nothing is mere. I too see the stars on a desert night, and feel them. But do I see less or more? The vastness of the heavens s
Page 1 of 5
The Chinese University of Hong Kong
Midterm Examination, 1st term 200910
Course Code & Title:
Time allowed:
UGB 240MB
Astronomy
45 minutes
Name: _
i.
Answer ALL questions.
ii.
Student ID: _
Questions 5-10 are MC questions.
Choose the best answ
Page 1 of 5
The Chinese University of Hong Kong
Midterm Examination, 2nd term 201011
Course Code & Title:
Time allowed:
UGEB 2401B
Astronomy
45 minutes
Name: _
i.
Answer ALL questions.
ii.
Student ID: _
Questions 4-9 are MC questions. Choose the best answ
Chapter 4
The origin of modern astronomy I
Around 1340 the English scholar William of Ockham enunciated his famous principle, called Ockhams razor, which helps scientists cut through a thicket of competing theories to find the best theory. Paraphrased in
Chapter 2
2.1
The solar system I
A quick survey
The solar system is dominated by the central sun - a star giving out light and heat, whose mass is about 300,000 times greater than that of the earth. Planets (): Eight planets (Fig. 2-1) and their satellit
Page 1 of 5
The Chinese University of Hong Kong
Midterm Examination, 2nd term 201011
Course Code & TitlezwygliB 24(_)_1B Astronomy _
Time
Name: Student ID:
i. Answer ALL questions. Questions 49 are MC questions. Choose the best answers.
ii. Write y
Chapter 5
5.1
The origin of modern astronomy II
Pre-Kepler astronomy
Copernicus () (1473-1543 AD) Following Aristarchus idea, he proposed the heliocentric model ( ): The sun is at the centre of the universe; the planets, including the earth, move in circ
Chapter 7
7.1
Theory of motion and gravitation
Newtons three laws of motion
Fig. 7-1 An example of Newtons second law. (a) When the applied force is kept constant and the mass of the body is doubled, the acceleration reduces by half. (b) When the mass is
Chapter 3
3.1
The earth and the sky I
Celestial sphere ()
Objects very far away from us appear to be of equal distance from us (Fig. 3-1) in fact, an illusion.
Fig. 3-1 (Top) Suppose we are standing under the Rice cooker () of Science Centre. Mr. A and M
Sorting - Introduction
Sorting - Introduction
Sorting is simply the ordering of your data in a
consistent manner.
There are several easy algorithms to sort in
O(n2), such as insertion sort.
There is an algorithm, Shellsort, simple to
code, runs less than
