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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. 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






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






3. The muscle elongates is an example of negative work






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






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






6. Energy due to position






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






8. 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.






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






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






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






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






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






14. Rate of motion in a specific direction






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






16. Location in space in relation to a fix point






17. Energy due to deformation






18. 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






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






20. Linear motion






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






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






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






24. Rectilinear translation and Curvilinear translation






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






26. Mechanics of objects in accelerated motion.






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






28. Accelerate our bodies






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






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






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






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






33. Displacement/time






34. The capacity to do work






35. Energy due to motion






36. Speeding up in a positive direction






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






38. Rate of motion of an object






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






40. 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.






41. Speed and velocity






42. 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.






43. Distance traveled/time






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






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






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






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






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






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






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