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






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






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






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






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






6. Energy due to deformation






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






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






9. Energy due to position






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






11. Linear motion






12. Accelerate our bodies






13. Location in space in relation to a fix point






14. Rate of motion of an object






15. The objects stay together and move with the same velocity after impact (full back and linebacker)






16. The branch of dynamics concerned with the forces that cause or tend to cause motion






17. The capacity to do work






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






19. The means by which energy is transferred from one object or system to another






20. The muscle elongates is an example of negative work






21. Mechanics of objects in accelerated motion.






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






23. 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.






24. 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.






25. Duration of an event - SI unit if seconds - minutes - hours and days all based on s.






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






27. Distance traveled/time






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






29. Rate of motion in a specific direction






30. Rectilinear translation and Curvilinear translation






31. Speed and velocity






32. 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






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






34. Is a mathematical representation of anything that is defined by its size or magnitude (a number) and its direction (its orientation).






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






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






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






38. 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






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






40. 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.






41. The rate of doing work






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






43. Displacement/time






44. All of the momentum of one object is transferred to the other (two pennies example)






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






46. SI units are the most commonly accepted units of measure based on the metric system.






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






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






49. 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.






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