NCERT/Class 9/Science/Work and Energy

Work and Energy

Class 9 · Science

16 questions7 easy6 medium3 hard

Sample Questions

Q1.What is kinetic energy?

  • AEnergy of motion
  • BEnergy at rest
  • CEnergy of height
  • DEnergy of temperature

Q2.What is the SI unit of work?

  • AJoule (J)
  • BNewton (N)
  • CWatt (W)
  • DPascal (Pa)

Q3.What is energy?

  • AThe capacity to do work
  • BThe amount of force applied
  • CThe distance traveled
  • DThe speed of an object

Q4.What is mechanical advantage?

  • ARatio of output force to input force
  • BDifference between forces
  • CSum of all forces
  • DRate of work done

Q5.What is work?

  • AForce applied on an object in the direction of displacement
  • BAny activity done by a person
  • CSpeed times distance
  • DEnergy of motion

Q6.This is a sample question to preview what you'll get in the full practice test...

  • A. Option one
  • B. Option two
  • C. Option three
  • D. Option four
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Concepts Covered

CalculationEfficiencyEnergyEnergy ConservationEnergy LossGravitational PEGravityKinetic EnergyLaws of ThermodynamicsMechanical AdvantageMechanical EnergyMotionPotential EnergyPowerSI UnitsSimple MachinesWorkWork-Energy Theorem

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