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Mechanical Principles Of Human Movement

Subject : engineering
Instructions:
  • Answer 50 questions in 30 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 product of force and the amount of displacement in the direction of that force






2. Energy due to position






3. The muscle elongates is an example of negative work






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






5. 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.






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






7. 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






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






9. The capacity to do work






10. 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.






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






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






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






14. 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






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






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






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






18. Rate of motion in a specific direction






19. Mechanics of objects in accelerated motion.






20. Linear motion






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






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






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






25. Energy due to motion






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






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






28. Linear motion






29. Location in space in relation to a fix point






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






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






32. Displacement/time






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






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






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






36. Accelerate our bodies






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






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






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






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






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






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






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






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






45. Energy due to deformation






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






47. The rate of doing work






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






49. Rectilinear translation and Curvilinear translation






50. Speeding up in a positive direction






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