2024 · Paper 1
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AGA KHAN UNIVERSITY EXAMINATION BOARD
SECONDARY SCHOOL CERTIFICATE
CLASS IX
ANNUAL EXAMINATIONS (THEORY) 2024
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 IX (2024)Total 40 Examination Items • SLO Mapped
Q.1.
The total number of significant figures in are
2025 Syllabus: SLO 1.7.1 • Measurement ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (1.7.1): describe significant figures;
A.
3
B.
4
C.
6
D.
7
Q.2.
The number can be represented in scientific notation as
2025 Syllabus: SLO 1.3.2 • Measurement ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (1.3.2): convert numerical values of measurement in scientific notation;
A.
B.
C.
D.
Q.3.
If the volume of the given cuboid is , then the value of will be
2025 Syllabus: SLO 1.2.2 • Measurement ↗Cognitive Level: A (Application)
2025 SLO Outcome (1.2.2): differentiate between base and derived physical quantities and units;
A.
0.1 m.
B.
0.2 m.
C.
0.3 m.
D.
0.5 m.
Q.4.
The total number of derived quantities involved in the equation is
2025 Syllabus: SLO 1.1.3 • Measurement ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (1.1.3): identify various physical quantities as base and derive quantities;
A.
one.
B.
two.
C.
three.
D.
four.
Q.5.
The given graph depicts that a person is walking along a straight road.
Which of the following options CORRECTLY describes the motion of the person from point X to Y?
2025 Syllabus: SLO 2.4.1 • Kinematics ↗Cognitive Level: A (Application)
2025 SLO Outcome (2.4.1): interpret distance-time graph and speed-time graph;
A.
The person is moving towards the starting point at a constant speed.
B.
The person is moving towards the starting point with a variable speed.
C.
The person is moving away from the starting point at a constant speed.
D.
The person is moving away from the starting point with a variable speed.
Q.6.
A force of is acting on a body along x-axis. The value of its y-component will be
2025 Syllabus: SLO 1.4.4 • Measurement ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (1.4.4): determine, using Pythagoras theorem and graphs, the resultant of two vectors at right angle;
A.
0 N.
B.
5 N.
C.
10 N.
D.
20 N.
Q.7.
A body starts from rest and accelerates to a velocity of . If it covers a distance of , then its acceleration will be
2025 Syllabus: SLO 2.3.2 • Kinematics ↗Cognitive Level: A (Application)
2025 SLO Outcome (2.3.2): calculate average speed, average velocity and acceleration;
A.
.
B.
.
C.
.
D.
.
Q.8.
The below given picture shows the velocity-time graph for the motion of a body.
The slope of the line segment WX in the above graph shows the
2025 Syllabus: SLO 2.4.2 • Kinematics ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (2.4.2): determine the slope/ gradient of distance-time and speed-time graph;
A.
acceleration.
B.
displacement of the body.
C.
total distance covered by the body.
D.
total time taken for the motion of the body.
Q.9.
If a motorcyclist covers a displacement of in , then his/ her velocity will be
2025 Syllabus: SLO 2.3.2 • Kinematics ↗Cognitive Level: A (Application)
2025 SLO Outcome (2.3.2): calculate average speed, average velocity and acceleration;
A.
15 m/s.
B.
140 m/s.
C.
160 m/s.
D.
1500 m/s.
Q.10.
Saif and Kaif are in a basketball match. During the game, Saif, holding the ball of mass running with a velocity of , collides with the defender, Kaif, who is at rest position, and both start moving together.
The type of collision and value of momentum of the ball will be
(Note: Saif and Kaif both have equal weights.)
2025 Syllabus: SLO 3.4.4 • Dynamics ↗Cognitive Level: A (Application)
2025 SLO Outcome (3.4.4): solve word problems related to momentum and impulse;
A.
Type of Collision: Elastic | Momentum of the Ball: 1.8 N.s
B.
Type of Collision: Inelastic | Momentum of the Ball: 1.8 N.s
C.
Type of Collision: Elastic | Momentum of the Ball: 0.2 N.s
D.
Type of Collision: Inelastic | Momentum of the Ball: 0.2 N.s
Q.11.
Which of the following options CORRECTLY depicts the effect of friction on the speed of an object while keeping the force constant?
2025 Syllabus: SLO 3.5.1 • Dynamics ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (3.5.1): define friction;
A.
Friction: More | Speed: Less
B.
Friction: Unaffected | Speed: Less
C.
Friction: Less | Speed: More
D.
Friction: Less | Speed: Unaffected
Q.12.
Two unequal masses are suspended with an inextensible string around a pulley as shown in the given diagram.
(Note: Here masses are '' and '', such that '' is less than ''.)
Based on the given diagram, the relationship between the magnitudes of the acceleration and is
2025 Syllabus: SLO 3.3.1 • Dynamics ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (3.3.1): explain Newton’s laws of motion;
A.
B.
C.
D.
Q.13.
During accidents, airbags in cars protect the passengers from hitting the dashboards by increasing the
2025 Syllabus: SLO 3.4.7 • Dynamics ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (3.4.7): apply scientific and engineering ideas to design a device that minimises the force on an object during a collision (e.g., helmet or parachute);
A.
momentum.
B.
acceleration.
C.
time of contact.
D.
impact of collision.
Q.14.
If the mass of an object is , then its weight will be
(Note: Take the value of acceleration due to gravity '' as .)
2025 Syllabus: SLO 3.1.4 • Dynamics ↗Cognitive Level: A (Application)
2025 SLO Outcome (3.1.4): solve word problems using the relation w = mg;
A.
0.07 N.
B.
0.7 N.
C.
7.0 N.
D.
70.0 N.
Q.15.
Based on the given image, the net torque of the seesaw will be equal to
2025 Syllabus: SLO 4.2.1 • Turning Effect of Forces ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (4.2.1): state the principle of moments;
A.
zero.
B.
one.
C.
two.
D.
infinite.
Q.16.
If a body obeys the first condition of equilibrium, then which of the following options will equate to zero?
•I. Linear acceleration
•II. Vector sum of all the forces
•III. Vector sum of all the torques
2025 Syllabus: SLO 4.4.3 • Turning Effect of Forces ↗Cognitive Level: K (Knowledge)
2025 SLO Outcome (4.4.3): state the conditions of equilibrium;
A.
II only
B.
III only
C.
I and II
D.
II and III
Q.17.
If a force of is applied by a student on a door handle and the moment of force is , then the distance of the pivot from the point of applied force is
2025 Syllabus: SLO 4.1.3 • Turning Effect of Forces ↗Cognitive Level: A (Application)
2025 SLO Outcome (4.1.3): solve word problems related to the moment of force or torque = force × perpendicular distance from the pivot to the line of action of force;
A.
4 m.
B.
12 m.
C.
20 m.
D.
64 m.
Q.18.
In the given diagram, two weights '' and '' are placed on a rod whereas (). For keeping the rod in the equilibrium position, then
•I. increase '' and decrease ''
•II. increase '' and '' remain same
•III. increase '' and '' remain the same
2025 Syllabus: SLO 4.2.2 • Turning Effect of Forces ↗Cognitive Level: A (Application)
2025 SLO Outcome (4.2.2): solve word problems related to the principle of moments;
A.
I only.
B.
III only.
C.
I and II.
D.
II and III.
Q.19.
A mountaineer has taken a bag of emergency items on his back to the Mount Everest.
On reaching the peak of the Mount Everest, the weight of the bag will
Out of 2025 SyllabusCognitive Level: U (Understanding)
A.
increase.
B.
decrease.
C.
become zero.
D.
remain the same.
Q.20.
If two metallic spheres have an equal mass of each and the distance between their centres is , then the gravitational force of attraction between the spheres will be
(Note: The value of the Gravitational constant is .)
Out of 2025 SyllabusCognitive Level: U (Understanding)
A.
.
B.
.
C.
.
D.
.
Q.21.
The weight is a force that results from the gravitational attraction between an object and the Earth. The direction of this force will be
2025 Syllabus: SLO 3.1.3 • Dynamics ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (3.1.3): define gravitational field strength;
A.
upward.
B.
forward.
C.
backward.
D.
downward.
Q.22.
The given diagram shows the path followed by a comet when it reaches close to the sun. The shape of the path is
Out of 2025 SyllabusCognitive Level: K (Knowledge)
A.
elliptical.
B.
spherical.
C.
parabolic.
D.
hyperbolic.
Q.23.
If the kinetic energy of a object is , then the velocity of the object will be
2025 Syllabus: SLO 6.3.3 • Work, Energy and Power ↗Cognitive Level: A (Application)
2025 SLO Outcome (6.3.3): solve word problems related to the kinetic and potential energy;
A.
5.0 m/s.
B.
7.07 m/s.
C.
10.0 m/s.
D.
100.0 m/s.
Q.24.
A tugboat applies a force of to tow a container ship from the shore to the deep sea. The rope that connects the tugboat to the ship is parallel to the surface of the water.
If the tugboat displaces the container ship by , then the amount of work done by the tugboat will be
(Note: Suppose that the seawater current is negligible.)
2025 Syllabus: SLO 6.1.2 • Work, Energy and Power ↗Cognitive Level: A (Application)
2025 SLO Outcome (6.1.2): solve word problems related to workdone;
A.
5 J.
B.
400 J.
C.
600 J.
D.
50000 J.
Q.25.
Consider the given image.
All of the following types of renewable energy sources are shown in the given picture EXCEPT
2025 Syllabus: SLO 6.4.5 • Work, Energy and Power ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (6.4.5): differentiate between non-renewable and renewable energy sources with examples of each;
A.
solar.
B.
wind.
C.
hydel.
D.
biomass.
Q.26.
An electric heater of consumes of energy to warm a room. The time required by the heater to warm the room will be
2025 Syllabus: SLO 6.6.2 • Work, Energy and Power ↗Cognitive Level: A (Application)
2025 SLO Outcome (6.6.2): solve word problems related to the concept of power;
A.
0.1 s.
B.
10 s.
C.
550 s.
D.
25000 s.
Q.27.
If a person exerts a force that causes a car to move forward, then this is an example of
2025 Syllabus: SLO 6.1.1 • Work, Energy and Power ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (6.1.1): define work and state its SI unit;
A.
power.
B.
efficiency.
C.
work done.
D.
rotatory motion.
Q.28.
According to the kinetic molecular theory of matter, the distance among the molecules of matter in the liquid state is
2025 Syllabus: SLO 8.1.2 • Thermal Physics ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (8.1.2): compare the structure of solids, liquids and gases based on the kinetic theory of matter;
A.
equal to solid state.
B.
more than solid state.
C.
equal to gaseous state.
D.
more than gaseous state.
Q.29.
The given diagram shows three different blocks of insoluble material placed in three beakers that are partially filled with water.
Which of the given block(s) is/ are LESS denser than water?
2025 Syllabus: SLO 7.1.2 • Pressure ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (7.1.2): compare the densities of three states of matter (solids, liquids and gases);
A.
Block (1) only
B.
Block (2) only
C.
Block (1) and Block (3)
D.
Block (2) and Block (3)
Q.30.
When the upthrust on a moving cargo ship becomes equal to its weight, then it will
2025 Syllabus: SLO 3.3.4 • Dynamics ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (3.3.4): determine the resultant of two or more forces acting along the same straight line;
A.
sink.
B.
float.
C.
drop its load.
D.
lose its balance.
Q.31.
Which of the following options depicts the atmospheric pressure at sea level and on the mountain?
2025 Syllabus: SLO 7.3.3 • Pressure ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (7.3.3): describe that atmospheric pressure decreases with the increase
in height above the earth’s surface;
A.
Atmospheric Pressure at Sea Level: Low | Atmospheric Pressure on the Mountain: High
B.
Atmospheric Pressure at Sea Level: Low | Atmospheric Pressure on the Mountain: Low
C.
Atmospheric Pressure at Sea Level: High | Atmospheric Pressure on the Mountain: High
D.
Atmospheric Pressure at Sea Level: High | Atmospheric Pressure on the Mountain: Low
Q.32.
The property of matter by which it restores its length, shape or volume after the removal of the deforming force is called
2025 Syllabus: SLO 5.1.1 • Deformation of Solids ↗Cognitive Level: K (Knowledge)
2025 SLO Outcome (5.1.1): illustrate that force may produce a change in the size and shape of an object;
A.
strain.
B.
stress.
C.
elasticity.
D.
elastic limit.
Q.33.
The CORRECT relation between Celsius and Fahrenheit is
2025 Syllabus: SLO 8.3.2 • Thermal Physics ↗Cognitive Level: A (Application)
2025 SLO Outcome (8.3.2): convert temperature from one scale to another (Fahrenheit, Celsius and Kelvin scales);
A.
.
B.
.
C.
.
D.
.
Q.34.
The amount of heat energy required to change a substance from solid into liquid state at its melting point without any change in its temperature is known as
2025 Syllabus: SLO 8.2.4 • Thermal Physics ↗Cognitive Level: K (Knowledge)
2025 SLO Outcome (8.2.4): describe latent heat of fusion and latent heat of vaporisation;
A.
heat capacity.
B.
latent heat of fusion.
C.
specific heat capacity.
D.
latent heat of vapourisation.
Q.35.
If the temperature of a substance is , then its temperature in Kelvin scale will be
2025 Syllabus: SLO 8.3.2 • Thermal Physics ↗Cognitive Level: A (Application)
2025 SLO Outcome (8.3.2): convert temperature from one scale to another (Fahrenheit, Celsius and Kelvin scales);
A.
– 253 K.
B.
– 6.66 K.
C.
68 K.
D.
293 K.
Q.36.
A metal cap on a glass bottle can easily be opened when hot water is poured over it. This is because
2025 Syllabus: SLO 8.2.1 • Thermal Physics ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (8.2.1): describe the thermal expansion of solids in terms of: a. linear expansion, b. volumetric expansion;
A.
metal and glass do not expand.
B.
metal and glass expand equally.
C.
metal expands less and glass expands more.
D.
metal expands more and glass expands less.
Q.37.
With reference to heat transfer in solids, the CORRECT statement is that heat
2025 Syllabus: SLO 9.1.1 • Transfer of Thermal Energy ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (9.1.1): explain thermal conduction in solids;
A.
flows from lower to higher temperature.
B.
flows from higher to lower temperature.
C.
is independent of the size of the surface of solids.
D.
is independent of the temperature of the surroundings.
Q.38.
The CORRECT option that identifies the processes of heat transfer in which medium is required and not required is
2025 Syllabus: SLO 9.3.1 • Transfer of Thermal Energy ↗Cognitive Level: U (Understanding)
2025 SLO Outcome (9.3.1): define the process of thermal energy transfer by radiation;
A.
Medium Required: conduction | Medium NOT Required: convection
B.
Medium Required: convection | Medium NOT Required: conduction
C.
Medium Required: conduction | Medium NOT Required: radiation
D.
Medium Required: radiation | Medium NOT Required: conduction
Q.39.
An example of a good conductor of heat is a
2025 Syllabus: SLO 9.1.5 • Transfer of Thermal Energy ↗Cognitive Level: K (Knowledge)
2025 SLO Outcome (9.1.5): describe good and bad conductors of heat with examples;
A.
glass door.
B.
frying pan.
C.
wooden door.
D.
leather jacket.
Q.40.
Air ventilation in a room is an example of
2025 Syllabus: SLO 9.4.1 • Transfer of Thermal Energy ↗Cognitive Level: K (Knowledge)
2025 SLO Outcome (9.4.1): discuss everyday applications of conduction, convection and radiation including:
a. heating objects such as kitchen pans,
b. heating of room by convection,
c. measuring temperature using an infrared thermometer,
d. using thermal insulation to maintain the temperature of a liquid and to reduce thermal energy transfer in buildings,
e. the mechanism of a household hot-water system;
A.
radiation.
B.
convection.
C.
conduction.
D.
evaporation.
S2401-1711110END OF PAPERPhysics Paper I