9th Class Guess Paper on Physics Annual Exam 2020 (ALP)
9th Class Guess Paper Physics (Annual Exam 2020, According to ALP Syllabus):
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Important Short Questions:
- What is meant by Vernier Constant or Least Count?
- What is the use of Zero Error?. Why it is necessary in a measuring instrument?
- Define significant figures.
- What is Andromeda?
- Describe Lord Kelvin Statement.
- Define Unit. Write units of System International.
- Define prefixes?
- What is Hubble space telescope?
- Differentiate between Scalar and Vector quantities.
- Differentiate between Distance and Displacement.
- Differentiate between Speed and Velocity.
- Differentiate between Linear and Random motion.
- What is Gyration Length?
- Define Kinematics.
- What change will occur in equation of motions under gravity?
- Define Inertia.
- Define Centripetal force?
- Differentiate between Mass and Weight.
- Differentiate between Sliding and Rolling Friction.
- Why it is dangerous to travel on the roof of a bus?
- Why does a passenger move outward when a bus takes a turn?
- If action and reaction are always equal and opposite, then how does a body moves?
- A horse pushes the cart. If action and reaction are always equal and opposite, then how does a cart move?
- Define the law of conversation of momentum. Why it is important?
- When a gun is fired, it recoils. Why?
- Write two situations in which force of friction is needed.
- Describe ways to reduce friction.
- Why the outer edge of the road is kept higher (Banking of Road)?
- On what principal cream separator works? / How does cream separator works?
- Define dynamics.
- A bullet has a very small inertia due to its small mass? But why does it impact is so strong when it is fired from the gun?
- What is Atwood Machine?
- Why fragile objects are packed with suitable materials?
- Define system and isolated system.
- What is co-efficient of friction?
- Why Ball bearings are used to reduce friction?
- Describe the advantages of friction.
- Define Torque.
- Define Center of Gravity.
- Differentiate between torque and couple.
- Differentiate between stable and neutral equilibrium.
- When a body is said to be in equilibrium?
- Give an example of moving body which is in equilibrium?
- Think of a body which is in rest but not in equilibrium.
- Why the height of vehicles is kept as low as possible?
- Women and children in the villages often carry pitchers on their heads. How this is possible?
- What is trigonometry?
- What is rigid body?
- What is axis of rotation?
- Define moment arm.
- Define center of gravity.
- How does a paratrooper come down?
- Define terminal velocity
- Why a vehicle is made heavy at its bottom?
- What is force of gravitation.
- Define gravitational field.
- What is global positioning system (GPS)?
- Why does value of “g” vary from place to place?
- On what factors orbital speed of a satellite depends?
- Why communication satellite are stationed at geostationary orbit?
- Define work. What is its SI unit?
- What is Pole Vaulter?
- Explain mass energy equation. E=mc2
- Define ideal system / machine.
- When does a force do work. Explain?
- Which form of energy is most preferred and why?
- Define power.
- Define Watt.
- What is Hydrometer?
- What is meant by deforming force?
- Differentiate between stress and strain?
- State Pascal’s law.
- What is Hook’s law. What is meant by elastic limit.
- Define Archimedes principal.
- Define thermal conduct and thermal equilibrium.
- Define energy in transit and internal energy.
- Define heat capacity.
- Define thermal expansion.
- Why gaps are left in railway tracks?
- Why gaps are left in bridges with rollers?
- Why overhead transmission lines are also given a certain amount of sag?
- What is the use of bimetallic strip in thermostats?
- What is anomalous expansion of water?
- Explain volumetric thermal expansion.
- Define specific heat
- Define latent heat of fusion.
- Define latest heat of vaporization
Important Long Questions:
- Define Translatory motion and explain its types.
- Derive Newton’s First Equation of Motion.
- Derive Newton’s Second Equation of Motion.
- Derive Newton’s Third Equation of Motion.
- Explain Newton’s first law of motion with examples.
- Explain Newtons second law of motion with examples. Prove F = ma.
- Explain Newtons third law of motion with examples.
- Explain first condition of equilibrium
- Explain second condition of equilibrium
- Describe the types of equilibrium.
- Perform an experiment to find out the center of body of an irregular body.
- What are geo-stationary satellites. What are their uses?
- Define and explain Law of gravitation. Also derive the mass of earth with the help of this law.
- Define Kinetic Energy. Also derive the relation for K.E?
- What do you know about Youn’g modulus of an object? How would you determine it?
- Define and explain Archimedes principal.
- Explain the working of Hydraulic Press.
- What is upthrust? Explain. What is principal of flotation.
- Describe importance of large specific heat capacity of water.
- Derive the relation of Linear thermal expansion in solids.
Other Important Things:
- Objective Type Questions (MCQs)
- Numericals Chapter wise
- Diagrams that are compulsory
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