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






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






3. 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.






4. Rectilinear translation and Curvilinear translation






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






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






7. Rate of motion of an object






8. The rate of doing work






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






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






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. Mechanics of objects in accelerated motion.






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






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






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






16. Accelerate our bodies






17. Speeding up in a positive direction






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






19. Speed and velocity






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






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






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






23. The capacity to do work






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






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






26. Rate of motion in a specific direction






27. Location in space in relation to a fix point






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






29. 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






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






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






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






33. Energy due to deformation






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






35. Displacement/time






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






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






38. 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.






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






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






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






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






43. Energy due to position






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






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






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






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






48. 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.






49. 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






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