Test your basic knowledge |

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






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






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






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






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






6. 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.






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






8. Distance traveled/time






9. Mechanics of objects in accelerated motion.






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






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






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






13. Speed and velocity






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






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






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






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






18. 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






19. Displacement/time






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






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






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






23. The capacity to do work






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






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






26. Rate of motion of an object






27. Rate of motion in a specific direction






28. 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.






29. The muscle elongates is an example of negative work






30. Accelerate our bodies






31. Energy due to position






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






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






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






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






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






37. Rectilinear translation and Curvilinear translation






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






39. 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.






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






41. 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.






42. Location in space in relation to a fix point






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






44. Energy due to deformation






45. 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






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






47. The rate of doing work






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






49. Speeding up in a positive direction






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