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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. To every action there is always opposed an equal reaction






2. 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






3. The rate of doing work






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






5. Rate of motion of an object






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






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






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






9. 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.






10. 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.






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






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






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






14. Accelerate our bodies






15. Rectilinear translation and Curvilinear translation






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






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






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






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






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






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






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






23. Speeding up in a positive direction






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






25. Linear motion






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






27. The muscle elongates is an example of negative work






28. Speed and velocity






29. Distance traveled/time






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






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






32. The capacity to do work






33. Mechanics of objects in accelerated motion.






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






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






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






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






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






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






40. Location in space in relation to a fix point






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






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






43. Rate of motion in a specific direction






44. 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.






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






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






47. Energy due to deformation






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






49. Linear motion






50. 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.