CBSE Class IX Work Energy Simple Machines CW 01

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Across
  1. 3. Energy obtained by adding kinetic and potential energies.
  2. 6. Product of force and displacement in the direction of force.
  3. 7. Ratio of useful output work to input work.
  4. 10. Type of work done when force and displacement act in the same direction.
  5. 11. SI unit of work and energy.
  6. 12. Energy stored due to position or deformation.
  7. 13. Type of potential energy associated with height above Earth's surface.
Down
  1. 1. Value of work done when displacement is absent or force acts perpendicular to displacement.
  2. 2. Device that makes work easier or more convenient.
  3. 4. Type of work done when force and displacement act in opposite directions.
  4. 5. Capacity to do work.
  5. 8. Energy possessed by an object due to its motion.
  6. 9. Rate at which work is done.