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






2. Energy due to position






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






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






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






6. 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.






7. 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






8. 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






9. Accelerate our bodies






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






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






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






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






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






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






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






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






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






19. Speeding up in a positive direction






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






21. Energy due to deformation






22. Rectilinear translation and Curvilinear translation






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






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






25. 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.






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






27. Rate of motion in a specific direction






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






29. The muscle elongates is an example of negative work






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






31. The capacity to do work






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






33. Location in space in relation to a fix point






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






35. Linear motion






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






37. The rate of doing work






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






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






40. Distance traveled/time






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






42. 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






43. Mechanics of objects in accelerated motion.






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






45. 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.






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






47. 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.






48. Displacement/time






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






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