中二 試卷 (F2 Computer Past Paper)
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內容節錄：
Secondary 2
Instructions:
Belilios Public School
Half-yearly Examination, 2015-2016
Computer Literacy
This paper must be answered in English.
the cover page.
Write your Name, Class and Class Number in the spaces provided on
There are FIVE sections in this paper.
Answer ALL questions.
Write your answers in the spaces provided.
Time allo we d: 45 minutes
Maximum marks: 50
Section C: Multiple Choice (15 marks) (1 mark each)
1. Which of the following is a 3D animation
production software?
B. Photoshop
C. Windows Movie Maker
D. Audacity
3. If an animation with 129,600 frames is being
played at 30 fps, what is the duration of the
A. 60 minutes
B. 72 minutes
C. 84 minutes
D. 96 minutes
5. In Adobe Flash, what colour should be set
for a mask?
D. Mask is colour-independent
7. Which of the following CORRECTLY
describe(s) Motion Tween?
Gradually change the color of the object
Gradually change the position of the object
III. Can be applied to two objects
II and III only
D. all of the above
In a graphical file with colour depth 8-bit,
what is the number of colour available?
4. Which of the following will NOT be
performed in the rendering stage of 3D
animation production?
A. Coloring
B. Lighting
C. Simulating
D. Texturing
Draw a necessary shape
B. Customize the Shape Tween
C. Combine two shapes together
D. Divide one shape into two parts
6. The main purpose of using shape hints in
Adobe Flash is to
8. Which button is used to transform the figure
as shown below?
Before transformation
C. I and II only
D. I and III only
After transformation
9. The sequence of video production in
Windows Movie Maker is
Video effect creating
II. Media importing
IV. Timeline editing
Video file exporting
A. I>III > II > IV
B. II>I> III > IV
C. II > IV > I > III
D. IV>II> I > III
11. The file format AVI is the short form for
A. Audio Visual Interface
B. Audio Visual Interleave
C. Audio Video Interface
D. Audio Video Interleave
13. Which of the following CORRECTLY
describe 'apps'?
A. iClass is an example of health-management
B. They cannot be used in the desktop PCs.
C. It stands for application software.
D. All of them are free of charge.
A. Apple account
B. Google account
C. Microsoft account
D. No user account is needed
15. In order to access the AppInventor
development tool, you will need a / an
10. Which of the following optical disks
support/s the video file format?
IV. Blu-ray disks
II and III only
I and IV only
D. II, III and IV only
12. Which of the following properties will NOT
change the file size of a video file?
color depth
B. resolution
C. playing speed
D. mute the background noise
14. The mobile apps developed by AppInventor
are designed for
iOS devices
B. Android devices
D. All of above
Windows Mobile devices
Section D: Short Questions (7 marks)
If the speed of playing the animation remains unchanged. Describe how an animation is affected
by each of the following actions.
(a) Replace each of the odd numbers of images with a white blank image.
The animation will flash.
Reduce the number of images used in an animation.
The duration of the animation will be shortened.
Write down the full name of the following abbreviations in the spaces provided.
Three dimensional
High definition
Section E: Structural Questions (15 marks)
State ONE advantage of using App Inventor to create mobile apps.
Free of charge / project can be accessed anywhere
(Any reasonable answer)
In 1930s, the Walt Disney Company produced its animations by hand drawing. Nowadays, the
animation is being produced by using computer-aided drawing.
(a) Give ONE advantage of using computer drawing instead of hand drawing in animation
production.
The coloring is more accurate / The images can be modified easily / Frames can be generated by
using the previous key frames (Any reasonable answer)
(b) The Graphics Designer, Raymond, wants to apply the Motion Tween to the cat. He has
duplicated and transformed the cat character at the particular frames as keyframes. The
following shows some screenshots of the animation at the frames stated in the brackets.
Screenshot 1 (at frame 1) Screenshot 2 (at frame 10) Screenshot 3 (at frame 20) Screenshot 4 (at frame 35)
At least how many keyframes are required by the animation? 3
(ii) Name the image properties being changed in the following frames.
[Hints: scale up, translate, scale down, rotate, blur]
From Screenshot 1 to Screenshot 2: translate
From Screenshot 3 to Screenshot 4: rotate
(iii) If Raymond wants to publish the Flash animation onto the company website, in
which file format should he save the file?.
(c) Although huge manpower is required to create 3D animation, the company is now shifting
its productions from 2D to 3D animations. Give ONE possible reason why this decision is
being made.
3D animation looks more realistic / animation frames can be created through simulation
(Any reasonable answer)
(d) Name the process of creating the contour and structure of the objects and scenes involved
in 3D animation.
Emily created a 750MB uncompressed video file. The resolution of it is 320 × 240.
(a) How many bits are there in 750MB?
750 x 8 x 1024 x 1024
= 6,291,456,000 bits
(b) If the colour depth of each frame is 16 bpp, how many bits are used to save a frame?
of each frame = 16 x 320 x 240
= 1,228,800 bits
(c) How many frames are there in the video file?
6,291,456,000/ 1,228,800
= 5120 frames
171 seconds
(d) If the video file is played at 30 fps, what is the duration of the video in seconds? (2 marks)
*** End of Marking Scheme ***
Section A: Fill in the blanks with words given. (8 marks) (1 mark each)
Choose the best answers and write them in the spaces provided. Each space accepts ONE answer
Flash animation.
1. Animations and videos make use of human's
called the persistence of visual.
3. The unit 'fps' is the short form for
to stream the data.
4. The appearance of 3D objects is simulated by their positions and
using 3D animation software.
like another computer system, e.g. smartphone.
orientations
6. If we want to capture live video on our computer in real time, we need the
Tween will be applied when we need an object change its appearance in a
on fast-changing images. This is
per second.
effect can only take place between two adjacent video clips.
Section B: Matching (5 marks) (1 mark each)
Match each of the following file formats with the suitable types of multime dia.
Types of multimedia
File formats
8. Tablet PCs and smartphones are the examples of mobile computing devices because they are small
enough to be
) fla, gif and swf
) txt, doc and docx
) mp3, aup and wav
wmv, mov and avi
) bmp, jpeg and png
is software that enables one computer system to behave
Section C: Multiple Choice (15 marks) (1 mark each)
1. Which of the following is a 3D animation
production software?
B. Photoshop
C. Windows Movie Maker
D. Audacity
3. If an animation with 129,600 frames is being
played at 30 fps, what is the duration of the
A. 60 minutes
B. 72 minutes
C. 84 minutes
D. 96 minutes
5. In Adobe Flash, what colour should be set
for a mask?
D. Mask is colour-independent
7. Which of the following CORRECTLY
describe(s) Motion Tween?
Gradually change the color of the object
Gradually change the position of the object
III. Can be applied to two objects
II and III only
D. all of the above
In a graphical file with colour depth 8-bit,
what is the number of colour available?
4. Which of the following will NOT be
performed in the rendering stage of 3D
animation production?
B. Lighting
C. Simulating
D. Texturing
draw a necessary shape
B. customize the Shape Tween
C. combine two shapes together
divide one shape into two parts
6. The main purpose of using shape hints in
Adobe Flash is to
8. Which button is used to transform the figure
as shown below?
Before transformation
C. I and II only
D. I and III only
After transformation
9. The sequence of video production in
Windows Movie Maker is
Video effect creating
II. Media importing
IV. Timeline editing
Video file exporting
A. I>III > II > IV
B. II>I> III > IV
C. II > IV > I > III
D. IV>II> I > III
11. The file format AVI is the short form for
A. Audio Visual Interface
B. Audio Visual Interleave
C. Audio Video Interface
D. Audio Video Interleave
13. Which of the following CORRECTLY
describe 'apps'?
A. iClass is an example of health-management
B. They cannot be used in the desktop PCs.
C. It stands for application software.
D. All of them are free of charge.
A. Apple account
B. Google account
C. Microsoft account
D. No user account is needed
15. In order to access the
AppInventor
development tool, you will need a / an
10. Which of the following optical disks
support/s the video file format?
IV. Blu-ray disks
II and III only
I and IV only
D. II, III and IV only
12. Which of the following properties will NOT
change the file size of a video file?
color depth
B. resolution
C. playing speed
D. mute the background noise
14. The mobile apps developed by AppInventor
are designed for
iOS devices
B. Android devices
D. All of above
Windows Mobile devices
Section D: Short Questions (7 marks)
If the speed of playing the animation remains unchanged. Describe how an animation is affected
by each of the following actions.
Replace each of the odd numbers of images with a white blank image.
Write down the full name of the following abbreviations in the spaces provided.
Reduce the number of images used in an animation.
State ONE advantage of using App Inventor to create mobile apps.
Section E: Structural Questions (15 marks)
In 1930s, the Walt Disney Company produced its animations by hand drawing. Nowadays, the
animation is being produced by using computer-aided drawing.
(a) Give ONE advantage of using computer drawing instead of hand drawing in animation
production.
(b) The Graphics Designer, Raymond, wants to apply the Motion Tween to the cat. He has
duplicated and transformed the cat character at the particular frames as keyframes. The
following shows some screenshots of the animation at the frames stated in the brackets.
Screenshot 1 (at frame 1) Screenshot 2 (at frame 10) Screenshot 3 (at frame 20) Screenshot 4 (at frame 35)
At least how many keyframes are required by the animation?.
(ii) Name the image properties being changed in the following frames.
[Hints: scale up, translate, scale down, rotate, blur]
From Screenshot 1 to Screenshot 2:
From Screenshot 3 to Screenshot 4:
(iii) If Raymond wants to publish the Flash animation onto the company website, in
which file format should he save the file?
The company is now shifting its productions from 2D to 3D animation. Give ONE possible
reason why this decision is being made.
(d) Name the process of creating the contour and structure of the objects and scenes involved
in 3D animation.
Emily created a 750MB uncompressed video file. The resolution of it is 320 × 240.
How many bits are there in 750MB?
If the colour depth of each frame is 16 bpp, how many bits are used to save a frame?
(c) How many frames are there in the video file?
(d) If the video file is played at 30fps, what is the duration of the video in seconds?
*** End of Paper ***
Secondary 2
Instructions:
Belilios Public School
Half-yearly Examination, 2014-2015
This paper must be answered in English.
the cover page.
Computer Literacy
Suggested Ans wer
Write your Name, Class and Class Number in the spaces provided on
There are FIVE sections in this paper.
Answer ALL questions.
Write your answers in the spaces provided.
Time allo we d: 45 minutes
Maximum marks: 50
Section A: Fill in the blanks with words given. (8 marks) (1 mark each)
Choose the best answers and write them in the spaces provided. Each space accepts ONE answer
1. Animations and videos make use of human's
is called the persistence of visual.
Flash animation.
3. The unit 'fps' is the short form for
4. The appearance of 3D
A/An____transition
orientations
D. Animation
to stream the data.
orientations
Tween will be applied when we need an object change its appearance in a
objects is simulated
using 3D animation software.
behave like another computer system, e.g. smartphone.
we want to capture live video on our computer in real time, we need the
effect can only take place between two adjacent video cl
on fast-changing images. This
per second.
(D) fla, gif and swf
(A) txt, doc and docx
( C ) mp3, aup and wav
(E) wmv, mov and avi
(B) bmp, jpeg and png
8. Tablet PCs and smartphones are the examples of mobile computing devices because they are small
enough to be
Section B: Matching (5 marks) (1 mark each)
Match each of the following file formats with the suitable types of multime dia.
Types of multimedia
File formats
by the ir positions and
is software that enables one computer system to