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. Rate of motion of an object






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






3. The rate of doing work






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






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






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






7. 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.






8. Location in space in relation to a fix point






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






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






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






12. Displacement/time






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






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






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






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






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. Energy due to position






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






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






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






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






23. 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






24. Rectilinear translation and Curvilinear translation






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






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






27. 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






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






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






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






31. Accelerate our bodies






32. 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.






33. Mechanics of objects in accelerated motion.






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






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






36. 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.






37. 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.






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






39. The muscle elongates is an example of negative work






40. Linear motion






41. Energy due to deformation






42. Speed and velocity






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






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






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






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






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






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






49. The capacity to do work






50. Rate of motion in a specific direction