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. To every action there is always opposed an equal reaction






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






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






4. Rectilinear translation and Curvilinear translation






5. Mechanics of objects in accelerated motion.






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






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. Speed and velocity






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






10. 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






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






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






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






14. Displacement/time






15. 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.






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






17. 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.






18. Location in space in relation to a fix point






19. Rate of motion in a specific direction






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






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






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






23. Energy due to deformation






24. Accelerate our bodies






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






26. The muscle elongates is an example of negative work






27. Speeding up in a positive direction






28. Energy due to position






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






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






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






32. Rate of motion of an object






33. Energy due to motion






34. Distance traveled/time






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






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






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






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






39. 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






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






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






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






43. 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.






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






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






46. The capacity to do work






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






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






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






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