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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. Accelerate our bodies






2. The capacity to do work






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






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






5. Energy due to position






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






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






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






9. Rate of motion in a specific direction






10. Speed and velocity






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






12. 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.






13. 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.






14. Displacement/time






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






16. Speeding up in a positive direction






17. Rectilinear translation and Curvilinear translation






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






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






20. Location in space in relation to a fix point






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






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






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






24. 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.






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






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






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






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






29. Linear motion






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






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






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






33. Mechanics of objects in accelerated motion.






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






35. 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






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






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






38. Linear motion






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






40. 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






41. Energy due to deformation






42. Distance traveled/time






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






44. The muscle elongates is an example of negative work






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






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






47. The rate of doing work






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






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






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