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Mechanical Principles Of Human Movement

Subject : engineering
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. The muscle elongates is an example of negative work






2. Forces that act within the object or system whose motion is being investigated.






3. Act perpendicular to the surface in contact and move the objects in opposite ways i.e. the downward force from a runners foot strike moves runner up away from the earth.






4. Energy due to motion






5. Location in space in relation to a fix point






6. The distance traveled in a straight line from the starting point to the ending point






7. Speeding up in a positive direction






8. Mechanics of objects at rest of moving at a constant velocity.






9. Used to describe a change in position - the SI unit is meters - may also see miles - yards - feet and inches.






10. Energy due to position






11. The branch of dynamics concerned with the forces that cause or tend to cause motion (external forces - Newton's laws).






12. Linear motion that occurs when an object maintains its orientation during a movement so that all points on the object move the same distance - in the same direction - in the same time but not in straight lines.






13. The product of forece multiplied by the time that force acts






14. Accelerate our bodies






15. Linear motion that occurs when a object maintains its orientation during a movement so that all points on the object move the same distance - in the same direction - in the same time - in strain lines






16. The study of forces and their effects on living systems.






17. The product of force and the amount of displacement in the direction of that force






18. Are forces that occur between objects in contact with each other i.e. air and water.






19. Occurs when an object moves in a positive direction but is slowing down






20. Measure of inertia; the quantity of matter in an object. Does not change with location.






21. Rectilinear translation and Curvilinear translation






22. Done by a force acting on an object if the object is displaced in the same direction as the force






23. Rate of motion in a specific direction






24. To every action there is always opposed an equal reaction






25. Speed and velocity






26. Are forces that act on an object as a result of interaction with the environment surrounding it. Either non - contact or contact forces.






27. The property of an object to resist changes in its motion.






28. In reference to height - the greater the height the more gravitational potential energy






29. Done by a force acting on an object when the object is displaced in the direction opposite the force acting on it






30. A change in position that results from a combination of both linear and angular motion. Most movement is general is nature






31. The change of motion of an object is proportional to the force impressed; and is made in the direction of the straight line in which the force is impressed






32. A push or a pull. They cause objects to start - stop - speed up - slow down or change direction. (N)






33. Everybody continues in a state of rest or of uniform motion in a straight line - unless it is compelled to change that state by forces impressed upon it






34. The rate of doing work






35. Energy due to deformation






36. Force that occur even if the objects are not touching i.e. gravity or magnetic.






37. When an object speeds up - slows down - starts - stops or changes direction. Can be positive or negative






38. Act parallel to the contacts and opposes motion or sliding between the surfaces i.e. the backward of the runners foot strike gives the runner horizontal motion.






39. The action or process of change in position - in which two things are necessary.






40. Displacement/time






41. Distance traveled/time






42. The capacity to do work






43. Linear motion






44. The shortening phase of the muscle in an isotonic lift is an example of positive work






45. Change in position that occurs when all points on a body or object move in circular paths about the same fixed axis - also referred to as rotary motion or rotation.






46. Defined as the absolute value of the ratio of the velocity of separation of velocity of approach






47. Mechanics of objects in accelerated motion.






48. Measure of the force of gravity acting on an object. Changes with location.






49. A measure of the length of a path followed by an object






50. Linear motion






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