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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. 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.






2. The capacity to do work






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






4. Energy due to position






5. 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.






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






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






8. 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






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






10. The science concerned with the effects of forces acting on objects.






11. 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






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






13. Energy due to motion






14. 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.






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






16. Accelerate our bodies






17. The muscle elongates is an example of negative work






18. 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.






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






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






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






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






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






24. Linear motion






25. 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






26. The branch of dynamics concerned with the description of motion (linear - angular and general motion).






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






28. Speed and velocity






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






30. Displacement/time






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






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






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






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






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






36. The rate of doing work






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






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






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






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






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






42. Rate of motion of an object






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






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






45. Location in space in relation to a fix point






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






47. Rate of motion in a specific direction






48. Speeding up in a positive direction






49. Energy due to deformation






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