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9th Class Physics Board Pattern Paper 20269th Class · Physics · Punjab (PTB)
Q1. Multiple choice questions (Attempt all · 12 × 1 = 12)
Least count of micrometer screw gauge:
Which of the following is non-diamagnetic material?
What is the pressure of Sun's center?
A spanner 25 cm long is used to open a nut. If a force of 400 N is applied at the end of a spanner what is the torque acting on the nut:
Gases and liquids are categorized as:
A girl walks 3 km towards west and 4 km towards south. What is the magnitude of her total distance and displacement respectively?
Which of the following is a contact force?
Resources of energy which are replaced by new ones after their use are called:
Which brach of science plays vital role in technology and engineering?
The least count of digital Vernier Callipers is:
1000 years ago, the Greeks a rock called ......:
The pressure exerted by a man on the surface of earth will be smaller when he:
Q2. Short questions (Attempt any 5 of 8 · 5 × 2 = 10)
Solve the following:
Define momentum. Write its unit.
What does the gradient of a distance-time graph represent?
Define systematic error?
Inflatable air bags are installed in the vehicles as safety equipment. In terms of momentum, what is the advantage of air bags over seat belts?
Define kinematics.
Differentiate between physical and non-physical quantities?
Write an advantage of electronic balance over mechanical balance.
Q3. Short questions (Attempt any 5 of 8 · 5 × 2 = 10)
Why is the cutting edge of the knife made very thin?
What is resolution of force?
Define sewage
Why sports boots have studs on their soles? Explain.
Define momentum of a force. Prove that
, where
is angle between r and F.
A car is moving along a curved road at constant speed. Does its kinetic energy change?
Describe the measurement of pressure by manometer?
A ripe mango does not normally fall from the tree. But when the branch of the tree is shaken, the mango falls down easily. Can you tell the reason?
Q4. Short questions (Attempt any 5 of 8 · 5 × 2 = 10)
What does determine the direction of heat flow?
Do you think that the existing laws of nature may need a change in future? Describe briefly.
What is magnetic rely?
Why pressure and resistance are thermodynamic properties.
List the main steps of scientific method.
What are magnetic domains?
What are thermometric properties?
Describe when the theory is rejected or need its modification.
Q5. Long questions (Attempt any 2 of 3 · 2 × 9 = 18)
How the stability of an object can be improved? Give a few examples to support your answer.
A truck of mass 3000 kg is moving on a road with uniform velocity of 54 kmh-¹. Determine its kinetic energy.
What is temperature? How is it measured? Describe briefly the construction of a mercury-in-glass thermometer.