science assignment

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Across
  1. 4. the force applied to the machine to move an object or overcome a resistance
  2. 6. mechanical advantage-a measure of the true performance of a machine in a real-world scenario, accounting for practical inefficiencies
  3. 8. or a pull.Balanced forces acting on an object cause the object to be at rest,and unbalanced forces acting on an object cause the object to move.
  4. 9. arm-distance from the fulcrum (pivot point) to the location where the load (the object being moved) is applied
  5. 10. is the measure of the amount of matter in an object.The weight of an object is a measurement of the gravitational pull of an object. The gravitational force produced depends on the mass of an object and the distance from its center to the center of its pull
  6. 13. and acceleration is a form of characterizing movement of an object.
  7. 15. standard unit of energy and work in the International System of Units (SI)
  8. 16. arm-the distance from the fulcrum (the pivot point) to the point where the input force (the effort) is applied
  9. 18. plane-uses a sloped surface to make moving an object to a different elevation easier.
  10. 19. a wheel and a rope, belt, or chain to lift heavy objects or change the direction of an applied force.
  11. 20. the force that opposes motion or attempted motion between surfaces in contact
  12. 21. the fixed pivot point around which a lever rotates or pivots
Down
  1. 1. the force or weight that is being moved or overcome
  2. 2. of an inclined plane wrapped around a central cylinder
  3. 3. any applied force that moves an object.
  4. 5. any types of device/technology that makes work easier for people.
  5. 7. a rigid bar that pivots around a fixed point called a fulcrum.
  6. 10. advantage-a measure of how much a simple machine multiplies the force or torque applied to it.
  7. 11. and axle-a simple machine made of a large, circular object (the wheel) attached to a smaller cylinder or rod (the axle)
  8. 12. is a movement from one position to another.
  9. 14. he rate at which work is done or energy is transferred
  10. 17. a measure of how effectively a machine converts input energy or work into useful output energy or work