2017 · Paper 1
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AGA KHAN UNIVERSITY EXAMINATION BOARD
SECONDARY SCHOOL CERTIFICATE
CLASS X
ANNUAL EXAMINATIONS (THEORY) 2017
Physics Paper I
Time: 1 hour 10 minutes Marks: 40
INSTRUCTIONS
Please read the following instructions carefully.
- Read each question carefully.
- Answer the questions on the separate answer sheet provided. DO NOT write your answers on the question paper.
- There are 100 answer numbers on the answer sheet. Use answer numbers 1 to 40 only.
- In each question there are four choices A, B, C, D. Choose ONE. On the answer grid black out the circle for your choice with a pencil.
- If you want to change your answer, ERASE the first answer completely with a rubber, before blacking out a new circle.
- DO NOT write anything in the answer grid. The computer only records what is in the circles.
- You may use a simple calculator if you wish.
Physics Paper I • CLASS X (2017)Total 25 Examination Items • SLO Mapped
Q.1.
The device between a computer and a telephone line which performs both analog to digital and digital to analog conversions of data is called
Out of 2025 SyllabusCognitive Level: Understanding
A.
hub.
B.
modem.
C.
modulator.
D.
demodulator.
Q.2.
The act of using someone else's work and showcasing it as one's own is called
2025 Syllabus: SLO 12.1.3 • Security, Privacy and Data Integrity ↗Cognitive Level: Knowledge
2025 SLO Outcome (12.1.3): explain key concepts of copyright, plagiarism, and piracy;
A.
hacking.
B.
phishing.
C.
intrusion.
D.
plagiarism.
Q.3.
Which of the following is TRUE about anti-virus software?
Out of 2025 SyllabusCognitive Level: Understanding
A.
It removes viruses from ROM.
B.
It removes viruses from RAM.
C.
It deletes the infected files only.
D.
It deletes all .exe files in computer.
Q.4.
The hardware or software which monitors the incoming and outgoing network traffic (data) based on some predefined criteria is known as
Out of 2025 SyllabusCognitive Level: Knowledge
A.
modem.
B.
firewall.
C.
anti-virus.
D.
user login.
Q.5.
Which of the following is an appropriate positive impact of computer technology on society?
2025 Syllabus: SLO 13.1.3 • Digital Literacy ↗Cognitive Level: Understanding
2025 SLO Outcome (13.1.3): evaluate the effectiveness of digital technologies in different real-life scenarios to optimise productivity and connectivity;
A.
People are using social media sites.
B.
People are getting dependent on computers.
C.
Computers are replacing people at work place.
D.
Computers have simplified the process of education for many people.
Q.6.
All of the following are symbols for a program flowchart EXCEPT
2025 Syllabus: SLO 9.1.2 • Computational Thinking and Algorithm ↗Cognitive Level: Understanding
2025 SLO Outcome (9.1.2): draw flowcharts related to SLO # 9.1.1.
A.
Diamond (Decision symbol)
B.
Oval / Rounded Rectangle (Start/Stop terminator symbol)
C.
Hexagon (Non-standard symbol in basic flowcharts)
D.
Parallelogram (Input/Output symbol)
Q.7.
Study the given flowchart.
If the input value is 10 for this flowchart, then the output value will be
2025 Syllabus: SLO 9.1.2 • Computational Thinking and Algorithm ↗Cognitive Level: Application
2025 SLO Outcome (9.1.2): draw flowcharts related to SLO # 9.1.1.
A.
10
B.
11
C.
20
D.
21
Q.8.
With reference to computer programming, debugging is the process of
2025 Syllabus: SLO 8.7.1 • Number Systems and Encoding Schemes ↗Cognitive Level: Knowledge
2025 SLO Outcome (8.7.1): explain Integrated Development Environment (IDE) and its following features: a. code editor, b. translator, c. debugger, d. loader, e. linker.
A.
running a programming code.
B.
renaming a programming code file.
C.
finding specific code lines in a program.
D.
finding and removing errors in a program.
Q.9.
In programming, the error due to which a program violates one or more grammatical rules of the programming language is known as
2025 Syllabus: SLO 10.1.1 • Programming in JavaScript ↗Cognitive Level: Knowledge
2025 SLO Outcome (10.1.1): differentiate between program syntax and program semantics;
A.
logic error.
B.
syntax error.
C.
memory error.
D.
execution error.
Q.10.
A GW-BASIC program can be written by using either commands or statements, depending upon the mode it is operated in.
Which of the following is/ are GW-BASIC commands?
I.
PRINT 30/5II.
10 CLSIII.
ENDOut of 2025 SyllabusCognitive Level: Knowledge
A.
I only
B.
II only
C.
I and II
D.
I and III
Q.11.
The CORRECT representation of the given arithmetic expression in GW-BASIC programming is
2025 Syllabus: SLO 10.3.1 • Programming in JavaScript ↗Cognitive Level: Application
2025 SLO Outcome (10.3.1): write a JavaScript program to solve arithmetic problems by using arithmetic operators;
A.
A = (B² * C) / 17B.
A = (B² × C) / 17C.
A = (B^2 * C) / 17D.
A = (B^2 * C) ÷ 17Q.12.
Which of the following is an example of a valid string variable name in GW-BASIC?
Out of 2025 SyllabusCognitive Level: Understanding
A.
FirstName$B.
First Name$C.
FirstName%D.
First Name%Q.13.
Which of the following commands enables the error trapping feature of GW-BASIC?
Out of 2025 SyllabusCognitive Level: Understanding
A.
ON ERROR GOTOB.
WHILE…WENDC.
ON ERROR OFFD.
ON…GOTOQ.14.
Consider the given GW-BASIC code.
If X = 10 and Y = 9, then the output of this code will be
2025 Syllabus: SLO 10.5.4 • Programming in JavaScript ↗Cognitive Level: Application
2025 SLO Outcome (10.5.4): write the output of a given program having a loop and selection structures;
A.
9
B.
10
C.
TRUE
D.
FALSE
Q.15.
Which of the following statements is used for more than one transfer points in GW-BASIC programs?
Out of 2025 SyllabusCognitive Level: Understanding
A.
GOTOB.
IF…THENC.
ON…GOTOD.
ON ERROR GOTOQ.16.
Consider the following program.
What values should be assigned to the loop to produce the following series of numbers?
100, 98, 96, 94, ……. 6, 4, 22025 Syllabus: SLO 10.5.3 • Programming in JavaScript ↗Cognitive Level: Application
2025 SLO Outcome (10.5.3): write JavaScript code to implement the following loops: a. for loop, b. while loop, c. do while loop, d. nested loop;
A.
For i = 2 to 100 Step 2B.
For i = 100 to 2 Step 2C.
For i = 2 to 100 Step -2D.
For i = 100 to 2 Step -2Q.17.
Consider the GW-BASIC code given below.
The output of this code will be
2025 Syllabus: SLO 10.5.4 • Programming in JavaScript ↗Cognitive Level: Application
2025 SLO Outcome (10.5.4): write the output of a given program having a loop and selection structures;
A.
0
B.
3
C.
0, 2, 4, 8, 12, 16, 20
D.
0, 3, 6, 9, 12, 15, 18
Q.18.
The following code line is an example of declaring two dimensional array in GW-BASIC.
If the subscript of the first element is
(0, 0), then the maximum number of elements that can be stored in the array declared above isOut of 2025 SyllabusCognitive Level: Application
A.
18
B.
10
C.
9
D.
7
Q.19.
Which of the following is the CORRECT syntax to extract three letters from the right hand side of the string?
Out of 2025 SyllabusCognitive Level: Application
A.
Print Right ("Pakistan",3)B.
Print Extract ("Pakistan",3)C.
Print Right$ ("Pakistan",3)D.
Print Extract$("Pakistan",3)Q.20.
Which GW-BASIC statement will draw a horizontal line?
Out of 2025 SyllabusCognitive Level: Application
A.
LINE (10, 90) - (90, 100)B.
LINE (10, 50) - (100, 100)C.
LINE (10, 10) - (100, 100)D.
LINE (50, 100) - (150, 100)Q.21.
What would be the output of the given GW-BASIC code line?
2025 Syllabus: SLO 10.3.8 • Programming in JavaScript ↗Cognitive Level: Application
2025 SLO Outcome (10.3.8): simplify an expression by using the order of precedence of operators;
A.
36
B.
54
C.
90
D.
2187
Q.22.
Read the GW-BASIC code given below.
This code is required to calculate the average of three values. Which of the following statements should be placed in Line 40 to CORRECTLY complete the program?
2025 Syllabus: SLO 10.3.8 • Programming in JavaScript ↗Cognitive Level: Application
2025 SLO Outcome (10.3.8): simplify an expression by using the order of precedence of operators;
A.
AVG = A + B + C / 3B.
AVG = (A + B + C) / 3C.
AVERAGE = A + B + C / 3D.
AVERAGE = (A + B + C) / 3Q.23.
Consider the given GW-BASIC code.
The number of times the WHILE loop will perform repetition is
2025 Syllabus: SLO 10.5.4 • Programming in JavaScript ↗Cognitive Level: Application
2025 SLO Outcome (10.5.4): write the output of a given program having a loop and selection structures;
A.
3
B.
4
C.
8
D.
9
Q.24.
There are different types of logic gates.
The Boolean expression to represent an AND operation is
Out of 2025 SyllabusCognitive Level: Understanding
A.
X + Y = Z
B.
X . Y = Z
C.
X * Y = Z
D.
X' + Y = Z
Q.25.
If A = 1 then what would be the result of Boolean expression (A . NOT(A)) + A?
Out of 2025 SyllabusCognitive Level: Application
A.
-A
B.
NOT(A)
C.
0
D.
1
S2502-1721110END OF PAPERPhysics Paper I