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ICSE Class 9 — free MCQ practice

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ICSE Class 9 subjects

Physics (148)History (93)Geography (87)Biology (86)Chemistry (84)Mathematics (76)Civics (63)

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Current ElectricityLogarithmsAlgebraAtmosphereBinomial TheoremGeometryNumber TheoryProbability & StatisticsQuadratic EquationsSequencesSequences and SeriesThe Harappan CivilisationVectors & 3D GeometryElectionsLaws of MotionPhysics and MeasurementTissues: Plant and Animal TissuesCoordinate GeometryThe Periodic TableCell StructureCell: The Unit of LifeJainism and BuddhismLocal Self-GovernmentNewton's Laws of MotionPeriodic TablePhysicsPythagoras TheoremRespiration in PlantsStructure of the EarthThe Language of Chemistry

Try a ICSE Class 9 question

Which of the following is a scalar quantity?Read the answer and worked solution →A body covers equal distances in equal intervals of time. Its motion is:Read the answer and worked solution →A body falls freely under gravity. The acceleration due to gravity (g) is approximately:Read the answer and worked solution →Which of the following can be zero for a body that has moved a non-zero distance?Read the answer and worked solution →

Worked practice questions

Which of the following is a scalar quantity?

  1. Speed
  2. Velocity
  3. Displacement
  4. Acceleration
Show answer and solution

Correct answer: A. Speed

1. A scalar quantity has only magnitude with no direction. 2. Speed is the rate of change of distance, given as a single positive number. 3. Velocity, displacement and acceleration each carry a direction along with their magnitudes. 4. So speed is the scalar quantity in the list. _Source: Selina Concise Physics ICSE Class 9, Ch 2 'Motion in One Dimension' (aplustopper.com extract)_

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A body covers equal distances in equal intervals of time. Its motion is:

  1. Variable
  2. Accelerated
  3. Uniform
  4. Random
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Correct answer: C. Uniform

1. Uniform motion means the body covers equal distances in equal intervals. 2. Speed and direction remain constant throughout the motion. 3. Variable motion would mean unequal distances in equal intervals. 4. So the described motion is uniform. _Source: Selina Concise Physics ICSE Class 9, Ch 2 'Motion in One Dimension' (aplustopper.com extract)_

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A body falls freely under gravity. The acceleration due to gravity (g) is approximately:

  1. 980 m per second squared
  2. 98 m per second squared
  3. 0.98 m per second squared
  4. 9.8 m per second squared
Show answer and solution

Correct answer: D. 9.8 m per second squared

1. The average value of acceleration due to gravity near Earth's surface is about 9.8 metres per second squared. 2. For simpler problems the value 10 metres per second squared is also used. 3. Larger or smaller values change by factors of ten but do not match the textbook average. 4. So the correct value is 9.8 metres per second squared. _Source: Selina Concise Physics ICSE Class 9, Ch 2 'Motion in One Dimension' (aplustopper.com extract)_

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