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






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






3. The capacity to do work






4. The rate of doing work






5. Mechanics of objects in accelerated motion.






6. 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.






7. Linear motion






8. Rate of motion of an object






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






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






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






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






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






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






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






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






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






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






19. Rectilinear translation and Curvilinear translation






20. Displacement/time






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






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






23. 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






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






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






26. Linear motion






27. Energy due to deformation






28. Speed and velocity






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






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






31. 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.






32. Energy due to motion






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






34. 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






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






36. Rate of motion in a specific direction






37. Speeding up in a positive direction






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






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






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






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






42. Location in space in relation to a fix point






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






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






45. 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






46. Accelerate our bodies






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






48. 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.






49. 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.






50. The muscle elongates is an example of negative work